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Fig. 2. Intraoral radiograph of an immediately pla...

Fig. 2. Intraoral radiograph of an immediately placed post-extractive dental implant with a full contour zirconia restoration after 1 year (same patient as in Fig. 1) Fig. 2. Intraoral radiograph of an immediately placed post-extractive dental implant with a full contour zirconia restoration after 1 year (same patient as in Fig. 1)

Fig. 1. Pre-operative panoramic radiograph of a fa...

Fig. 1. Pre-operative panoramic radiograph of a failing molar in position 36 Fig. 1. Pre-operative panoramic radiograph of a failing molar in position 36

Table 5 Patient’s satisfaction 12 months (T12)...

  Agreement percentage (n = 11) Presence of shame 0.0 Self-confidence has decreased 0.0 Evades eating with the implant 9.1 The ability to chew has decreased 0.0 Implant influences speech 0.0 Implant influences taste 0.0 Not satisfied with the colour of the crown 0.0 Not satisfied with the form of the crown 0.0 Not satisfied with ...

Table 4 Mean value, standard deviation, and freque...

Bone change (mm)n = 11mean (SD)− 0.17 mm (0.73)> − 2.0 to − 1.51 (9.1)> − 1.5 to − 1.00 (0.0)> − 1.0 to − 0.52 (18.2)> − 0.5 to 0.04 (36.4)> 0.0 to 0.52 (18.2)> 0.5 to 1.02 (18.2)Table 4 Mean value, standard deviation, and frequency distribution (percentages) of marginal bone change between 1 month after restoration placement (T1) and 1 year in ...

Table 3 Mean value, standard deviation, and freque...

Bone level (mm)n = 15Mean (SD)− 0.94 mm (0.54)> − 2.5 to − 2.01 (6.7)> − 2.0 to − 1.52 (13.3)> − 1.5 to − 1.04 (26.7)> − 1.0 to − 0.55 (33.3)> − 0.5 to 0.03 (20.0)Table 3 Mean value, standard deviation, and frequency distribution (percentages) of marginal bone level at 1 month after restoration placement (T1)

Table 2 Frequencies and percentages of plaque inde...

 T1 (n = 15)T12 (n = 11)Plaque indexScore 0, 15 (100%)Score 0, 11 (100%)Calculus indexScore 0, 15 (100%)Score 0, 11 (100%)Gingival indexScore 0, 15 (100%)Score 0, 11 (100%)Bleeding indexScore 0, 15 (100%)Score 0, 10 (91%)Score 1, 1 (9%)Probing depth in mm (sd)2.0 (0.9)1.9 (0.8)Table 2 Frequencies and percentages of plaque index scores (possible score 0–3), calculus index scores (possibl...

Table 1 Baseline characteristics of the study grou...

Mean age in years (sd, minimum-maximum) 57 (6.6, 44–67) Gender (number male/female) 6/9 Reason of failure (severe caries/crown fracture/root fracture) 3/6/6 Implant position (maxilla/mandible) 7/8 Implant position (in between teeth/no tooth distally) 11/4   Table 1 Baseline characteristics of the study group

About this article : Immediate implant placement i...

Meijer, H.J.A., Raghoebar, G.M. Immediate implant placement in molar extraction sites: a 1-year prospective case series pilot study. Int J Implant Dent 6, 3 (2020). https://doi.org/10.1186/s40729-019-0201-7 Download citation Received: 29 October 2019 Accepted: 11 December 2019 Published: 12 February 2020 DOI: https://doi.org/10.1186/s40729-019-0201-7

Rights and permissions : Immediate implant placeme...

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were m...

Additional information : Immediate implant placeme...

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Ethics declarations : Immediate implant placement ...

This clinical study was conducted in accordance with the World Medical Association Declaration of Helsinki (version VI, 2002). The Medical Ethical Committee of the University Medical Center Groningen considered this case series study not subject to the Medical Research Involving Human Subjects Act (Number M15.184100). The study was registered at the Netherlands Trial Register (Number NL8117). Afte...

Author information : Immediate implant placement i...

Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, PO Box 30.001, NL-9700 RB, Groningen, The Netherlands Henny J. A. Meijer & Gerry M. Raghoebar Department of Implant Dentistry, University Medical Center Groningen, Groningen, The Netherlands Henny J. A. Meijer You can also search for this author in PubMed Google Scholar You can also search for this author in...

Funding : Immediate implant placement in molar ext...

An unrestricted grant from Nobel Biocare Services AG funded the 1-year clinical study; implant materials were provided (study code: 2015-1365).

Acknowledgements : Immediate implant placement in ...

Not applicable.

References : Immediate implant placement in molar ...

Tallarico M, Xhanari E, Pisano M, Gatti F, Meloni SM. Molar replacement with 7 mm-wide diameter implants: to place the implant immediately or to wait 4 months after socket preservation? 1 year after loading results from a randomised controlled trial. Eur J Oral Implantol. 2017;10:169–78. Checchi V, Felice P, Zucchelli G, Barausse C, Piattelli M, Pistilli R, Grandi G, Esposito M. Wide diameter i...

References : Immediate implant placement in molar ...

Hamouda NI, Mourad SI, El-Kenawy MH, Maria OM. Immediate implant placement into fresh extraction socket in the mandibular molar sites: a preliminary study of a modified insertion technique. Clin Implant Dent Relat Res. 2015;17(Suppl 1):e107–16. https://doi.org/10.1111/cid.12135. Demircan S, Çankaya AB. Is immediate implant placement possible in the maxillary molar area? An anatomical study. Qu...

References : Immediate implant placement in molar ...

Gallucci GO, Hamilton A, Zhou W, Buser D, Chen S. Implant placement and loading protocols in partially edentulous patients: a systematic review. Clin Oral Implants Res. 2018;29(Suppl 16):106–34. https://doi.org/10.1111/clr.13276. Slagter KW, Den Hartog L, Bakker NA, Vissink A, Meijer HJA, Raghoebar GM. Immediate placement of dental implants in the esthetic zone: a systematic review and pooled a...

Availability of data and materials : Immediate imp...

The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.

Conclusion : Immediate implant placement in molar ...

Within the limitations of this study, it has been demonstrated that immediate placement of regular diameter implants in molar post-extraction sites of maxilla and mandible resulted in a high implant failure rate during a 1-year follow-up period.

Discussion : Immediate implant placement in molar ...

In an attempt to incorporate the concept of patient engagement, this study investigated the patients’ satisfaction with the rehabilitated posterior region by assessing specific patient-centred outcomes. This was done by the patients filling out the established questionnaire 1 year after restoration placement [26, 27]. All the questioned outcome measures showed high patient satisfaction which is...

Discussion : Immediate implant placement in molar ...

The mean marginal bone level was 0.94 mm below the neck of the implant at 1 month after restoration placement (T1). The optimal position of the peri-implant bone after a maturation period should be at the same level as the neck of the implant. This means that part of the biological width of the present study, which is acting as a barrier, was in contact with the implant surface roughness and w...

Discussion : Immediate implant placement in molar ...

Immediate placement of regular diameter implants in molar post-extraction sites of the maxilla and mandible resulted in a high implant failure rate during a 1-year follow-up period. The implant survival rate was 73.3% after 1 year in function. The performance of immediate placements in post-extraction sites was also analysed in the Cafiero et al., Atieh et al., Tallarico et al., and Checchi et a...

Results : Immediate implant placement in molar ext...

All 15 consecutive patients eligible to join the study on the basis of the inclusion and exclusion criteria agreed to participate in this study. The patient characteristics are depicted in Table 1. All implant-supported restorations had natural antagonistic teeth. Four of the 15 patients treated had a mobile implant, which had to be removed (in two patients 3 months after crown placement and in...

Materials and methods : Immediate implant placemen...

Radiographs were taken and evaluated 1 month and 12 months after restoration placement using a parallel technique, with an X-ray holder for periapical radiographs. They were analysed using a specially designed computer software to perform linear measurements on digital radiographs. The calibration was carried out in the vertical plane of each radiograph by using the known distance of the implan...

Materials and methods : Immediate implant placemen...

An impression was made at implant level 2 weeks after the second stage of the surgery in order to fabricate a single crown. A definitive full-zirconia crown (yttria-stabilized zirconium oxide) with an angulated screw channel (NobelProcera FCZ Implant Crown, NobelBiocare AB) was manufactured in the determined colour at a centralized milling facility (NobelProcera Service Center, Mahwah, NJ, USA) a...

Materials and methods : Immediate implant placemen...

All patients referred to the Department of Oral and Maxillofacial Surgery (University of Groningen, University Medical Hospital), from January 2016 to July 2017, for single-tooth implant therapy in the maxillary and mandibular posterior region were considered for inclusion. The following inclusion criteria were applied: One failing first or second molar in the maxilla or mandible; Sufficient bon...

Background : Immediate implant placement in molar ...

Implant placement and loading protocols are changing [1]. There is a growing tendency to place single tooth implants immediately after the extraction of a failing tooth, especially in the maxillary aesthetic region, and preferably combined with immediate provisionalization [2,3,4,5,6]. This tendency is related to evolving society factors, including more demanding patients and a wish for direct tre...

Abstract : Immediate implant placement in molar ex...

There is a growing tendency to place single tooth implants immediately after extracting a failing tooth in the posterior region. The aim of this prospective case series pilot study was to evaluate immediate implant placement in molar post-extraction sites during a 1-year follow-up period. Fifteen consecutive patients with a single failing molar in the maxilla or mandible, and presenting enough bo...

Fig. 5. PROMs over 5 years: improvement of satis...

Fig. 5. PROMs over 5 years: improvement of satisfaction from loading to study end Fig. 5. PROMs over 5 years: improvement of satisfaction from loading to study end

Fig. 4. Soft tissue parameters at 5-year post-load...

Fig. 4. Soft tissue parameters at 5-year post-loading. a Plaque index: score 0, no plaque detected; score 1, plaque only recognized by running a probe across the smooth marginal surface of the implant; score 2, plaque seen by the naked eye; score 3, abundance of soft matter. b Sulcus bleeding index: score 0, no bleeding when a periodontal probe was passed along the gingival margin adjacent to th...

Fig. 3. Standardized peri-apical radiographs repre...

Fig. 3. Standardized peri-apical radiographs representing the bone level changes at the implant level: immediately post insertion (a), at loading (abutment/crown placement) (b), and at 5-year post-loading (c) Fig. 3. Standardized peri-apical radiographs representing the bone level changes at the implant level: immediately post insertion (a), at loading (abutment/crown placement) (b), and at 5...

Fig. 2. Kaplan-Meier cumulative survival rate : Cl...

Fig. 2. Kaplan-Meier cumulative survival rate Fig. 2. Kaplan-Meier cumulative survival rate

Fig. 1. Study flow-chart: assessments and reason f...

Fig. 1. Study flow-chart: assessments and reason for dropouts. Study visits were done according to standard procedures in the respective study centers. Blue, mandatory visits; gray, optional visits Fig. 1. Study flow-chart: assessments and reason for dropouts. Study visits were done according to standard procedures in the respective study centers. Blue, mandatory visits; gray, optional visits

Table 3 Mean crestal bone level changes in mm : Cl...

Bone level changenMeanSDInsertion-loading103− 0.520.55Loading-1-year follow-up93− 0.040.37Loading-3-year follow-up90− 0.040.40Loading-5-year follow-up86− 0.090.43Table 3 Mean crestal bone level changes in mm

Table 2 Demography of study population : Clinical ...

CharacteristicsCategoryTotalTotal patients/implantsn94/130Center 19/17Center 218/26Center 320/26Center 414/16Center 518/26Center 615/19Gender, n (%)Male30 (31.9)Female64 (68.1)Age at surgery, yearsMean ± SD50.4 ± 13.7Range (min/max)19.1-75.6Age range distribution, n (%)< 30 years8 (8.5)30-45 years22 (23.4)45-60 years38 (40.4)60-75 years25 (26.6)> 75 years1 (1.1)Tobacco use, n (%)Non-sm...

Table 1 Dropouts over observation time : Clinical ...

Time periodPatientsImplantsBefore loading58Loading-1 year681-3 years673-5 years13Total1826Table 1 Dropouts over observation time

About this article : Clinical and patient-reported...

Ackermann, KL., Barth, T., Cacaci, C. et al. Clinical and patient-reported outcome of implant restorations with internal conical connection in daily dental practices: prospective observational multicenter trial with up to 7-year follow-up. Int J Implant Dent 6, 14 (2020). https://doi.org/10.1186/s40729-020-00211-z Download citation Received: 16 December 2019 Accepted: 12 Ma...

Rights and permissions : Clinical and patient-repo...

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material...

Additional information : Clinical and patient-repo...

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Ethics declarations : Clinical and patient-reporte...

A written consent was given by all patients after being informed of the study. The study was performed following the declaration of Helsinki. Ethics committee approval was obtained from the international ethical committee of Freiburg (Germany, Ref. 010/1833). Not applicable. All authors declare that they have no conflicts of interest regarding this study. All authors have been lecturing for Caml...

Author information : Clinical and patient-reported...

Filderstadt, Germany Karl-Ludwig Ackermann Leipzig, Germany Thomas Barth Munich, Germany Claudio Cacaci Landsberg a. L., Germany Steffen Kistler Forchheim, Germany Markus Schlee Department of Maxillofacial Surgery, Goethe University Frankfurt, Frankfurt, Germany Markus Schlee Berlin, Germany Michael Stiller You can also search for this author in PubMed Googl...

Funding : Clinical and patient-reported outcome of...

This study was funded by an unrestricted grant (NISCAM01/10) of the Oral Reconstruction Foundation (previously CAMLOG Foundation).

Acknowledgements : Clinical and patient-reported o...

The authors thank Lucius Keller of Touchpoint Communication AG (Luzern, Switzerland) for the medical writing support.

References : Clinical and patient-reported outcome...

Chang M, Odman PA, Wennstrom JL, Andersson B. Esthetic outcome of implant-supported single-tooth replacements assessed by the patient and by prosthodontists. Int J Prosthodont. 1999;12(4):335–41. Kiltz U, Winter J, Schirmer M, Weber U, Hammel L, Baraliakos X, et al. German translation and cross-cultural adaptation of the ASAS health index: an ICF-based instrument for documentation of functional...

References : Clinical and patient-reported outcome...

Ravald N, Dahlgren S, Teiwik A, Grondahl K. Long-term evaluation of Astra Tech and Branemark implants in patients treated with full-arch bridges. Results after 12-15 years. Clin Oral Implants Res. 2013;24(10):1144–51. Schwarz F, Alcoforado G, Nelson K, Schaer A, Taylor T, Beuer F, et al. Impact of implant-abutment connection, positioning of the machined collar/microgap, and platform switching...

References : Clinical and patient-reported outcome...

Gupta S, Sabharwal R, Nazeer J, Taneja L, Choudhury BK, Sahu S. Platform switching technique and crestal bone loss around the dental implants: a systematic review. Ann Afr Med. 2019;18(1):1–6. Hsu YT, Lin GH, Wang HL. Effects of platform-switching on peri-implant soft and hard tissue outcomes: a systematic review and meta-analysis. Int J Oral Maxillofac Implants. 2017;32(1):e9–e24. Nelson K,...

References : Clinical and patient-reported outcome...

Cacaci C, Ackermann KL, Barth T, Kistler S, Stiller M, Schlee M. A non-interventional multicenter study to document the implants success and survival rates in daily dental practices of the CONELOG screw-line implant. Clin Oral Investig. 2019;23(6):2609–16. Cochran D, Oates T, Morton D, Jones A, Buser D, Peters F. Clinical field trial examining an implant with a sand-blasted, acid-etched surface...

References : Clinical and patient-reported outcome...

Krennmair G, Seemann R, Weinlander M, Piehslinger E. Comparison of ball and telescopic crown attachments in implant-retained mandibular overdentures: a 5-year prospective study. Int J Oral Maxillofac Implants. 2011;26(3):598–606. Slot W, Raghoebar GM, Cune MS, Vissink A, Meijer HJA. Four or six implants in the maxillary posterior region to support an overdenture: 5-year results from a randomize...

Abbreviations : Clinical and patient-reported outc...

Adverse event Bone level change Distance implant shoulder to first visible bone contact Orthopantomogram Plaque index Patient reported outcome measures Platform switching Sulcus bleeding index

Availability of data and materials : Clinical and ...

The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

Conclusions : Clinical and patient-reported outcom...

This prospective observational multicenter study demonstrated successful functional and esthetic outcomes of the study implant restorations (single tooth restoration, fixed partial dentures) with reliable peri-implant hard and soft tissue stability and high patients’ satisfaction. The results are comparable with the outcome of already published controlled randomized clinical studies and retrospe...

Discussion : Clinical and patient-reported outcome...

In recent years, patients’ needs have increased in terms of the esthetic and functional outcome of the dental restoration. PROMs have been reported in several studies and represent a well-described non-invasive method to measure patient’s satisfaction with these needs; however, they might present a lack of standardization [39, 40] due to the very subjective view on esthetics or functionality o...

Discussion : Clinical and patient-reported outcome...

Changes in crestal bone level are well-documented in the literature. Bone remodeling is reported to take place between surgery and loading. The reported changes are generally around 0.5 mm [17, 27, 30] but can reach more than 1 mm [31] in randomized or observational trials. The present study is well in accordance with these findings with its bone remodeling of − 0.52 ± 0.55 mm. Nearly 45%...

Discussion : Clinical and patient-reported outcome...

Endosseous dental implants are a commonly accepted treatment procedure and showed high survival and success rates as well as good functional performance in numerous clinical trials and retrospective analyses, also for Conelog implants as for their specific implant surface [17, 23, 26]. However, in general, one could argue that results of controlled clinical studies do not reflect the real situatio...

Results : Clinical and patient-reported outcome of...

Table 3 shows the mean bone level changes of the implants with available radiographs from insertion to 5-year post-loading. Bone remodeling around the implant was noticeable from surgery to loading, presenting a mean value of − 0.52 ± 0.55 mm. From loading to the 5-year follow-up, the mean change in crestal bone remained clinically stable (−0.09 ± 0.43 mm) (Fig. 3). Split into three g...

Results : Clinical and patient-reported outcome of...

The study was started with 94 patients with 130 implants. At the end of the study (5-year post-loading), 76 patients with 104 implants were considered for analysis. Dropouts were distributed over the time of the study as described in Table 1. The majority of dropouts occurred early in the study phase. The reasons for the dropouts were variable as described in Fig. 1. The demographic and clinica...

Methods : Clinical and patient-reported outcome of...

The study data, soft and hard tissue parameters as well as the PROMs were descriptively analyzed using IBM SPSS V25.0 (IBM Corp., Armonk, NY, USA): Categorical variables were shown with frequencies and mean values were used for continuous variables. Survival analysis was performed using Kaplan–Meier method. Time of loading was the study baseline as per protocol, and the statistical unit was the ...

Methods : Clinical and patient-reported outcome of...

Patients were scheduled to follow-ups at 6 months, 1-, 2-, 3-, 4-, and 5-year post-loading for the assessment of the study parameter (Fig. 1). Depending on the investigators’ standard post-operative protocol, follow-up appointments were scheduled slightly differently: One center skipped the control visits at 6 months. Additionally, due to the observational character of the study and the pati...

Methods : Clinical and patient-reported outcome of...

This is an observational multicenter clinical study, approved by the ethics committee of the Freiburg ethics commission international (feci 010/1833). The study was planned and conducted according to the German medical devices law, the Declaration of Helsinki, good clinical practice, and the reporting is aligned with the STROBE statement. A minimum of 90 to 100 patients were planned to be included...

Introduction : Clinical and patient-reported outco...

Features of the chosen implant system for a study may also influence the outcome of the treatment: The degree of the manufacturer’s tolerances of implants with a conical implant-abutment connection heightens the risk of a mispositioning of the abutment, which cannot be corrected by repeated torqueing. Platform switching (PS) implants tend to have a protective effect on hard implant tissue outcom...

Introduction : Clinical and patient-reported outco...

Many randomized controlled clinical trials have been published about dental implants. They have demonstrated long-term success in the rehabilitation of edentulous patients [1, 2] as well as patients with single or multiple teeth replacements [3, 4]. While this type of trials have an indispensable place in establishing a new product or a new operation technique regarding safety and efficacy, the r...

Abstract : Clinical and patient-reported outcome o...

The interpretation of the results of randomized clinical trials is often questioned in relation with daily circumstances in practices. This prospective observational multicenter study was instigated to reflect the need for information in real-life situations with dental implants with internal conical implant-abutment connection (Conelog implant system). The implants were followed up at least 5-yea...

Fig. 2. Intraoral radiograph of an immediately pla...

Fig. 2. Intraoral radiograph of an immediately placed post-extractive dental implant with a full contour zirconia restoration after 1 year (same patient as in Fig. 1) Fig. 2. Intraoral radiograph of an immediately placed post-extractive dental implant with a full contour zirconia restoration after 1 year (same patient as in Fig. 1)

Fig. 1. Pre-operative panoramic radiograph of a fa...

Fig. 1. Pre-operative panoramic radiograph of a failing molar in position 36 Fig. 1. Pre-operative panoramic radiograph of a failing molar in position 36

Table 5 Patient’s satisfaction 12 months (T12)...

 Agreement percentage (n = 11)Presence of shame0.0Self-confidence has decreased0.0Evades eating with the implant9.1The ability to chew has decreased0.0Implant influences speech0.0Implant influences taste0.0Not satisfied with the colour of the crown0.0Not satisfied with the form of the crown0.0Not satisfied with the colour of the mucosa around the crown0.0Not satisfied with the form of the muc...

Table 4 Mean value, standard deviation, and freque...

Bone change (mm)n = 11mean (SD)− 0.17 mm (0.73)> − 2.0 to − 1.51 (9.1)> − 1.5 to − 1.00 (0.0)> − 1.0 to − 0.52 (18.2)> − 0.5 to 0.04 (36.4)> 0.0 to 0.52 (18.2)> 0.5 to 1.02 (18.2)Table 4 Mean value, standard deviation, and frequency distribution (percentages) of marginal bone change between 1 month after restoration placement (T1) and 1 year in ...

Table 3 Mean value, standard deviation, and freque...

Bone level (mm)n = 15Mean (SD)− 0.94 mm (0.54)> − 2.5 to − 2.01 (6.7)> − 2.0 to − 1.52 (13.3)> − 1.5 to − 1.04 (26.7)> − 1.0 to − 0.55 (33.3)> − 0.5 to 0.03 (20.0)Table 3 Mean value, standard deviation, and frequency distribution (percentages) of marginal bone level at 1 month after restoration placement (T1)

Table 2 Frequencies and percentages of plaque inde...

 T1 (n = 15)T12 (n = 11)Plaque indexScore 0, 15 (100%)Score 0, 11 (100%)Calculus indexScore 0, 15 (100%)Score 0, 11 (100%)Gingival indexScore 0, 15 (100%)Score 0, 11 (100%)Bleeding indexScore 0, 15 (100%)Score 0, 10 (91%)Score 1, 1 (9%)Probing depth in mm (sd)2.0 (0.9)1.9 (0.8)Table 2 Frequencies and percentages of plaque index scores (possible score 0–3), calculus index scores (possibl...

Table 1 Baseline characteristics of the study grou...

Mean age in years (sd, minimum-maximum)57 (6.6, 44–67)Gender (number male/female)6/9Reason of failure (severe caries/crown fracture/root fracture)3/6/6Implant position (maxilla/mandible)7/8Implant position (in between teeth/no tooth distally)11/4Table 1 Baseline characteristics of the study group

About this article : Immediate implant placement i...

Meijer, H.J.A., Raghoebar, G.M. Immediate implant placement in molar extraction sites: a 1-year prospective case series pilot study. Int J Implant Dent 6, 3 (2020). https://doi.org/10.1186/s40729-019-0201-7 Download citation Received: 29 October 2019 Accepted: 11 December 2019 Published: 12 February 2020 DOI: https://doi.org/10.1186/s40729-019-0201-7

Rights and permissions : Immediate implant placeme...

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were m...

Additional information : Immediate implant placeme...

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Ethics declarations : Immediate implant placement ...

This clinical study was conducted in accordance with the World Medical Association Declaration of Helsinki (version VI, 2002). The Medical Ethical Committee of the University Medical Center Groningen considered this case series study not subject to the Medical Research Involving Human Subjects Act (Number M15.184100). The study was registered at the Netherlands Trial Register (Number NL8117). Afte...

Author information : Immediate implant placement i...

Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, PO Box 30.001, NL-9700 RB, Groningen, The Netherlands Henny J. A. Meijer & Gerry M. Raghoebar Department of Implant Dentistry, University Medical Center Groningen, Groningen, The Netherlands Henny J. A. Meijer You can also search for this author in PubMed Google Scholar You can also search for this author in...

Funding : Immediate implant placement in molar ext...

An unrestricted grant from Nobel Biocare Services AG funded the 1-year clinical study; implant materials were provided (study code: 2015-1365).

Acknowledgements : Immediate implant placement in ...

Not applicable.

References : Immediate implant placement in molar ...

Tallarico M, Xhanari E, Pisano M, Gatti F, Meloni SM. Molar replacement with 7 mm-wide diameter implants: to place the implant immediately or to wait 4 months after socket preservation? 1 year after loading results from a randomised controlled trial. Eur J Oral Implantol. 2017;10:169–78. Checchi V, Felice P, Zucchelli G, Barausse C, Piattelli M, Pistilli R, Grandi G, Esposito M. Wide diameter i...

References : Immediate implant placement in molar ...

Hamouda NI, Mourad SI, El-Kenawy MH, Maria OM. Immediate implant placement into fresh extraction socket in the mandibular molar sites: a preliminary study of a modified insertion technique. Clin Implant Dent Relat Res. 2015;17(Suppl 1):e107–16. https://doi.org/10.1111/cid.12135. Demircan S, Çankaya AB. Is immediate implant placement possible in the maxillary molar area? An anatomical study. Qu...

References : Immediate implant placement in molar ...

Gallucci GO, Hamilton A, Zhou W, Buser D, Chen S. Implant placement and loading protocols in partially edentulous patients: a systematic review. Clin Oral Implants Res. 2018;29(Suppl 16):106–34. https://doi.org/10.1111/clr.13276. Slagter KW, Den Hartog L, Bakker NA, Vissink A, Meijer HJA, Raghoebar GM. Immediate placement of dental implants in the esthetic zone: a systematic review and pooled a...

Availability of data and materials : Immediate imp...

The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.

Conclusion : Immediate implant placement in molar ...

Within the limitations of this study, it has been demonstrated that immediate placement of regular diameter implants in molar post-extraction sites of maxilla and mandible resulted in a high implant failure rate during a 1-year follow-up period.

Discussion : Immediate implant placement in molar ...

In an attempt to incorporate the concept of patient engagement, this study investigated the patients’ satisfaction with the rehabilitated posterior region by assessing specific patient-centred outcomes. This was done by the patients filling out the established questionnaire 1 year after restoration placement [26, 27]. All the questioned outcome measures showed high patient satisfaction which is...

Discussion : Immediate implant placement in molar ...

The mean marginal bone level was 0.94 mm below the neck of the implant at 1 month after restoration placement (T1). The optimal position of the peri-implant bone after a maturation period should be at the same level as the neck of the implant. This means that part of the biological width of the present study, which is acting as a barrier, was in contact with the implant surface roughness and w...

Discussion : Immediate implant placement in molar ...

Immediate placement of regular diameter implants in molar post-extraction sites of the maxilla and mandible resulted in a high implant failure rate during a 1-year follow-up period. The implant survival rate was 73.3% after 1 year in function. The performance of immediate placements in post-extraction sites was also analysed in the Cafiero et al., Atieh et al., Tallarico et al., and Checchi et a...

Results : Immediate implant placement in molar ext...

All 15 consecutive patients eligible to join the study on the basis of the inclusion and exclusion criteria agreed to participate in this study. The patient characteristics are depicted in Table 1. All implant-supported restorations had natural antagonistic teeth. Four of the 15 patients treated had a mobile implant, which had to be removed (in two patients 3 months after crown placement and in...

Materials and methods : Immediate implant placemen...

Radiographs were taken and evaluated 1 month and 12 months after restoration placement using a parallel technique, with an X-ray holder for periapical radiographs. They were analysed using a specially designed computer software to perform linear measurements on digital radiographs. The calibration was carried out in the vertical plane of each radiograph by using the known distance of the implan...

Materials and methods : Immediate implant placemen...

An impression was made at implant level 2 weeks after the second stage of the surgery in order to fabricate a single crown. A definitive full-zirconia crown (yttria-stabilized zirconium oxide) with an angulated screw channel (NobelProcera FCZ Implant Crown, NobelBiocare AB) was manufactured in the determined colour at a centralized milling facility (NobelProcera Service Center, Mahwah, NJ, USA) a...

Materials and methods : Immediate implant placemen...

All patients referred to the Department of Oral and Maxillofacial Surgery (University of Groningen, University Medical Hospital), from January 2016 to July 2017, for single-tooth implant therapy in the maxillary and mandibular posterior region were considered for inclusion. The following inclusion criteria were applied: One failing first or second molar in the maxilla or mandible; Sufficient bon...

Background : Immediate implant placement in molar ...

Implant placement and loading protocols are changing [1]. There is a growing tendency to place single tooth implants immediately after the extraction of a failing tooth, especially in the maxillary aesthetic region, and preferably combined with immediate provisionalization [2,3,4,5,6]. This tendency is related to evolving society factors, including more demanding patients and a wish for direct tre...

Abstract : Immediate implant placement in molar ex...

There is a growing tendency to place single tooth implants immediately after extracting a failing tooth in the posterior region. The aim of this prospective case series pilot study was to evaluate immediate implant placement in molar post-extraction sites during a 1-year follow-up period. Fifteen consecutive patients with a single failing molar in the maxilla or mandible, and presenting enough bo...

Fig. 5. PROMs over 5 years: improvement of satis...

Fig. 5. PROMs over 5 years: improvement of satisfaction from loading to study end Fig. 5. PROMs over 5 years: improvement of satisfaction from loading to study end

Fig. 4. Soft tissue parameters at 5-year post-load...

Fig. 4. Soft tissue parameters at 5-year post-loading. a Plaque index: score 0, no plaque detected; score 1, plaque only recognized by running a probe across the smooth marginal surface of the implant; score 2, plaque seen by the naked eye; score 3, abundance of soft matter. b Sulcus bleeding index: score 0, no bleeding when a periodontal probe was passed along the gingival margin adjacent to th...

Fig. 3. Standardized peri-apical radiographs repre...

Fig. 3. Standardized peri-apical radiographs representing the bone level changes at the implant level: immediately post insertion (a), at loading (abutment/crown placement) (b), and at 5-year post-loading (c) Fig. 3. Standardized peri-apical radiographs representing the bone level changes at the implant level: immediately post insertion (a), at loading (abutment/crown placement) (b), and at 5...

Fig. 2. Kaplan-Meier cumulative survival rate : Cl...

Fig. 2. Kaplan-Meier cumulative survival rate Fig. 2. Kaplan-Meier cumulative survival rate

Fig. 1. Study flow-chart: assessments and reason f...

Fig. 1. Study flow-chart: assessments and reason for dropouts. Study visits were done according to standard procedures in the respective study centers. Blue, mandatory visits; gray, optional visits Fig. 1. Study flow-chart: assessments and reason for dropouts. Study visits were done according to standard procedures in the respective study centers. Blue, mandatory visits; gray, optional visits

Table 3 Mean crestal bone level changes in mm : Cl...

Bone level changenMeanSDInsertion-loading103− 0.520.55Loading-1-year follow-up93− 0.040.37Loading-3-year follow-up90− 0.040.40Loading-5-year follow-up86− 0.090.43Table 3 Mean crestal bone level changes in mm

Table 2 Demography of study population : Clinical ...

CharacteristicsCategoryTotalTotal patients/implantsn94/130Center 19/17Center 218/26Center 320/26Center 414/16Center 518/26Center 615/19Gender, n (%)Male30 (31.9)Female64 (68.1)Age at surgery, yearsMean ± SD50.4 ± 13.7Range (min/max)19.1-75.6Age range distribution, n (%)< 30 years8 (8.5)30-45 years22 (23.4)45-60 years38 (40.4)60-75 years25 (26.6)> 75 years1 (1.1)Tobacco use, n (%)Non-sm...

Table 1 Dropouts over observation time : Clinical ...

Time periodPatientsImplantsBefore loading58Loading-1 year681-3 years673-5 years13Total1826Table 1 Dropouts over observation time

About this article : Clinical and patient-reported...

Ackermann, KL., Barth, T., Cacaci, C. et al. Clinical and patient-reported outcome of implant restorations with internal conical connection in daily dental practices: prospective observational multicenter trial with up to 7-year follow-up. Int J Implant Dent 6, 14 (2020). https://doi.org/10.1186/s40729-020-00211-z Download citation Received: 16 December 2019 Accepted: 12 Ma...

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Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material...

Additional information : Clinical and patient-repo...

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Ethics declarations : Clinical and patient-reporte...

A written consent was given by all patients after being informed of the study. The study was performed following the declaration of Helsinki. Ethics committee approval was obtained from the international ethical committee of Freiburg (Germany, Ref. 010/1833). Not applicable. All authors declare that they have no conflicts of interest regarding this study. All authors have been lecturing for Caml...

Author information : Clinical and patient-reported...

Filderstadt, Germany Karl-Ludwig Ackermann Leipzig, Germany Thomas Barth Munich, Germany Claudio Cacaci Landsberg a. L., Germany Steffen Kistler Forchheim, Germany Markus Schlee Department of Maxillofacial Surgery, Goethe University Frankfurt, Frankfurt, Germany Markus Schlee Berlin, Germany Michael Stiller You can also search for this author in PubMed Googl...

Funding : Clinical and patient-reported outcome of...

This study was funded by an unrestricted grant (NISCAM01/10) of the Oral Reconstruction Foundation (previously CAMLOG Foundation).

Acknowledgements : Clinical and patient-reported o...

The authors thank Lucius Keller of Touchpoint Communication AG (Luzern, Switzerland) for the medical writing support.

References : Clinical and patient-reported outcome...

Chang M, Odman PA, Wennstrom JL, Andersson B. Esthetic outcome of implant-supported single-tooth replacements assessed by the patient and by prosthodontists. Int J Prosthodont. 1999;12(4):335–41. Kiltz U, Winter J, Schirmer M, Weber U, Hammel L, Baraliakos X, et al. German translation and cross-cultural adaptation of the ASAS health index: an ICF-based instrument for documentation of functional...

References : Clinical and patient-reported outcome...

Ravald N, Dahlgren S, Teiwik A, Grondahl K. Long-term evaluation of Astra Tech and Branemark implants in patients treated with full-arch bridges. Results after 12-15 years. Clin Oral Implants Res. 2013;24(10):1144–51. Schwarz F, Alcoforado G, Nelson K, Schaer A, Taylor T, Beuer F, et al. Impact of implant-abutment connection, positioning of the machined collar/microgap, and platform switching...

References : Clinical and patient-reported outcome...

Gupta S, Sabharwal R, Nazeer J, Taneja L, Choudhury BK, Sahu S. Platform switching technique and crestal bone loss around the dental implants: a systematic review. Ann Afr Med. 2019;18(1):1–6. Hsu YT, Lin GH, Wang HL. Effects of platform-switching on peri-implant soft and hard tissue outcomes: a systematic review and meta-analysis. Int J Oral Maxillofac Implants. 2017;32(1):e9–e24. Nelson K,...

References : Clinical and patient-reported outcome...

Cacaci C, Ackermann KL, Barth T, Kistler S, Stiller M, Schlee M. A non-interventional multicenter study to document the implants success and survival rates in daily dental practices of the CONELOG screw-line implant. Clin Oral Investig. 2019;23(6):2609–16. Cochran D, Oates T, Morton D, Jones A, Buser D, Peters F. Clinical field trial examining an implant with a sand-blasted, acid-etched surface...

References : Clinical and patient-reported outcome...

Krennmair G, Seemann R, Weinlander M, Piehslinger E. Comparison of ball and telescopic crown attachments in implant-retained mandibular overdentures: a 5-year prospective study. Int J Oral Maxillofac Implants. 2011;26(3):598–606. Slot W, Raghoebar GM, Cune MS, Vissink A, Meijer HJA. Four or six implants in the maxillary posterior region to support an overdenture: 5-year results from a randomize...

Abbreviations : Clinical and patient-reported outc...

Adverse event Bone level change Distance implant shoulder to first visible bone contact Orthopantomogram Plaque index Patient reported outcome measures Platform switching Sulcus bleeding index

Availability of data and materials : Clinical and ...

The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

Conclusions : Clinical and patient-reported outcom...

This prospective observational multicenter study demonstrated successful functional and esthetic outcomes of the study implant restorations (single tooth restoration, fixed partial dentures) with reliable peri-implant hard and soft tissue stability and high patients’ satisfaction. The results are comparable with the outcome of already published controlled randomized clinical studies and retrospe...

Discussion : Clinical and patient-reported outcome...

In recent years, patients’ needs have increased in terms of the esthetic and functional outcome of the dental restoration. PROMs have been reported in several studies and represent a well-described non-invasive method to measure patient’s satisfaction with these needs; however, they might present a lack of standardization [39, 40] due to the very subjective view on esthetics or functionality o...

Discussion : Clinical and patient-reported outcome...

Changes in crestal bone level are well-documented in the literature. Bone remodeling is reported to take place between surgery and loading. The reported changes are generally around 0.5 mm [17, 27, 30] but can reach more than 1 mm [31] in randomized or observational trials. The present study is well in accordance with these findings with its bone remodeling of − 0.52 ± 0.55 mm. Nearly 45%...

Discussion : Clinical and patient-reported outcome...

Endosseous dental implants are a commonly accepted treatment procedure and showed high survival and success rates as well as good functional performance in numerous clinical trials and retrospective analyses, also for Conelog implants as for their specific implant surface [17, 23, 26]. However, in general, one could argue that results of controlled clinical studies do not reflect the real situatio...

Results : Clinical and patient-reported outcome of...

Table 3 shows the mean bone level changes of the implants with available radiographs from insertion to 5-year post-loading. Bone remodeling around the implant was noticeable from surgery to loading, presenting a mean value of − 0.52 ± 0.55 mm. From loading to the 5-year follow-up, the mean change in crestal bone remained clinically stable (−0.09 ± 0.43 mm) (Fig. 3). Split into three g...

Results : Clinical and patient-reported outcome of...

The study was started with 94 patients with 130 implants. At the end of the study (5-year post-loading), 76 patients with 104 implants were considered for analysis. Dropouts were distributed over the time of the study as described in Table 1. The majority of dropouts occurred early in the study phase. The reasons for the dropouts were variable as described in Fig. 1. The demographic and clinica...

Methods : Clinical and patient-reported outcome of...

The study data, soft and hard tissue parameters as well as the PROMs were descriptively analyzed using IBM SPSS V25.0 (IBM Corp., Armonk, NY, USA): Categorical variables were shown with frequencies and mean values were used for continuous variables. Survival analysis was performed using Kaplan–Meier method. Time of loading was the study baseline as per protocol, and the statistical unit was the ...

Methods : Clinical and patient-reported outcome of...

Patients were scheduled to follow-ups at 6 months, 1-, 2-, 3-, 4-, and 5-year post-loading for the assessment of the study parameter (Fig. 1). Depending on the investigators’ standard post-operative protocol, follow-up appointments were scheduled slightly differently: One center skipped the control visits at 6 months. Additionally, due to the observational character of the study and the pati...

Methods : Clinical and patient-reported outcome of...

This is an observational multicenter clinical study, approved by the ethics committee of the Freiburg ethics commission international (feci 010/1833). The study was planned and conducted according to the German medical devices law, the Declaration of Helsinki, good clinical practice, and the reporting is aligned with the STROBE statement. A minimum of 90 to 100 patients were planned to be included...

Introduction : Clinical and patient-reported outco...

Features of the chosen implant system for a study may also influence the outcome of the treatment: The degree of the manufacturer’s tolerances of implants with a conical implant-abutment connection heightens the risk of a mispositioning of the abutment, which cannot be corrected by repeated torqueing. Platform switching (PS) implants tend to have a protective effect on hard implant tissue outcom...

Introduction : Clinical and patient-reported outco...

Many randomized controlled clinical trials have been published about dental implants. They have demonstrated long-term success in the rehabilitation of edentulous patients [1, 2] as well as patients with single or multiple teeth replacements [3, 4]. While this type of trials have an indispensable place in establishing a new product or a new operation technique regarding safety and efficacy, the r...

Abstract : Clinical and patient-reported outcome o...

The interpretation of the results of randomized clinical trials is often questioned in relation with daily circumstances in practices. This prospective observational multicenter study was instigated to reflect the need for information in real-life situations with dental implants with internal conical implant-abutment connection (Conelog implant system). The implants were followed up at least 5-yea...

Fig. 4. Kaplan-Meier implant survival curves for b...

Fig. 4. Kaplan-Meier implant survival curves for bone and bone substitutes Fig. 4. Kaplan-Meier implant survival curves for bone and bone substitutes

Fig. 3. Kaplan-Meier survival curves for membrane ...

Fig. 3. Kaplan-Meier survival curves for membrane types Fig. 3. Kaplan-Meier survival curves for membrane types

Fig. 2. Kaplan-Meier implant survival curves for a...

Fig. 2. Kaplan-Meier implant survival curves for augmentation procedures Fig. 2. Kaplan-Meier implant survival curves for augmentation procedures

Fig. 3. Mean bone loss at 6 months and 1 year. M...

Fig. 3. Mean bone loss at 6 months and 1 year. Mean bone loss distribution charts at 6 months and 1 year present no statistically significant difference. p value at 6 months was 0.2981 and at 1 year 0.6613 Fig. 3. Mean bone loss at 6 months and 1 year. Mean bone loss distribution charts at 6 months and 1 year present no statistically significant difference. p value at 6 months was ...

Fig. 2. ISQ values at placement, 6 weeks, 6 mont...

Fig. 2. ISQ values at placement, 6 weeks, 6 months, and 1 year. Mean and standard deviation of ISQ values taken at placement, 6 weeks, 6 months, and 1 year is presented. No statistical significant difference was determined between ISQ values at all time points. (p 

Fig. 1. Implant design. The OSPTX and OSP implants...

Fig. 1. Implant design. The OSPTX and OSP implants are manufactured from high-grade commercially pure titanium with surface roughness produced via a fluoride treatment process. The OSP implant is a screw-shaped self-tapping implant. The diameter used in this study was 4.0 mm. The implant length used in this study was 8 mm. The OSPTX implant has the same features as the OSP except the apex of t...

Table 2 Outcome success criteria : Comparative eva...

Implant success Clinically immobile when tested manually and/or with RFA (minimum ISQ = 65) Absence of peri-implant radiolucency present on an undistorted radiograph Absence of unresolved pain, discomfort, inf...

Table 1 Patient selection criteria : Comparative e...

Inclusion Male or female At least 18 years old Healthy enough to undergo routine implant surgery and subsequent dental treatment Partially edentulous requiring...

About this article : Comparative evaluation of the...

Simmons, D.E., Maney, P., Teitelbaum, A.G. et al. Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study. Int J Implant Dent 3, 16 (2017). https://doi.org/10.1186/s40729-017-0078-2 Download citation Received: 18 January 2017 Accepted: 22 April 2017 Published: 02 May 2017 DOI: https://doi.org/10.1186/s40729-01...

Rights and permissions : Comparative evaluation of...

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were m...

Author information : Comparative evaluation of the...

Department of Periodontics, Louisiana State University Health Sciences Center School of Dentistry, 1100 Florida Avenue, New Orleans, LA, 70119, USA David E. Simmons, Pooja Maney, Austin G. Teitelbaum, Susan Billiot & A. Archontia Palaiologou Tulane University SPHTM, 1440 Canal St, Suite 2001, New Orleans, LA, 70130, USA Lomesh J. Popat You can also search for this author in PubMed Google...

References : Comparative evaluation of the stabili...

De Bruyn H, Raes F, Cooper LF, Reside G, Garriga JS, Tarrida LG, et al. Three-years clinical outcome of immediate provisionalization of single Osseospeed() implants in extraction sockets and healed ridges. Clin Oral Implants Res. 2013;24(2):217–23. Ebler S, Ioannidis A, Jung RE, Hammerle CH, Thoma DS. Prospective randomized controlled clinical study comparing two types of two-piece dental impla...

References : Comparative evaluation of the stabili...

O'Sullivan D, Sennerby L, Meredith N. Influence of implant taper on the primary and secondary stability of osseointegrated titanium implants. Clin Oral Implants Res. 2004;15(4):474–80. Schwartz-Arad D, Herzberg R, Levin L. Evaluation of long-term implant success. J Periodontol. 2005;76(10):1623–8. Alves CC, Neves M. Tapered implants: from indications to advantages. Int J Periodontics Restora...

References : Comparative evaluation of the stabili...

Anitua E, Orive G. Short implants in maxillae and mandibles: a retrospective study with 1 to 8 years of follow-up. J Periodontol. 2010;81(6):819–26. Feldman S, Boitel N, Weng D, Kohles SS, Stach RM. Five-year survival distributions of short-length (10 mm or less) machined-surfaced and Osseotite implants. Clin Implant Dent Relat Res. 2004;6(1):16–23. Felice P, Cannizzaro G, Checchi V, March...

Notes : Comparative evaluation of the stability of...

DENTSPLY International, Susquehanna Commerce Center, 221 West Philadelphia Street, York, PA 17401 I-CAT 17 19; Imaging Services International LLC, 1910 North Penn Rd., Hatfield, PA 19440 Intra-Lock International, 6560 S. West Rogers Circle, Suite 24, Boca Raton, FL 33487 Osstell USA, 6700 Alexander Bell Drive, Suite 200, Columbia, MD 21046 ImageJ 1.50i Wayne Rasband National Institutes of Heal...

Conclusions : Comparative evaluation of the stabil...

Survival rates and stability of OSP and OSPTX implants was comparable. Osteotomy preparation either by the standard or by the soft bone surgical protocol had no significant effect on implant survival, success, and stability. Insertion torque presented a moderate to strong correlation with ISQ values at 6 weeks, 6 months, and 1 year. Insertion torque presented a weak correlation to ISQ values...

Discussion : Comparative evaluation of the stabili...

Insertion torque presented a moderate to strong correlation with ISQ values at 6 weeks, 6 months, and 1 year but not at time of implant insertion. This finding is in agreement with Acil et al. who reported no statistically significant correlation between insertion torque and ISQ at time of implant placement [22]. Although a strong correlation was found between insertion torque and bone loss at...

Discussion : Comparative evaluation of the stabili...

Augmentation of the maxillary sinus prior to dental implant placement is routinely performed in order to help patients restore their maxillary posterior dentition. Unfortunately, not all patients are candidates for this procedure due to either health, personal, or financial concerns. An alternative treatment without the need for a sinus elevation procedure is the use of a shorter implant. Research...

Results : Comparative evaluation of the stability ...

Overall implant survival rate was 93.3%. Two implants failed, one implant in group A (OSPTXSoft) and one in group B (OSPTXStd). Both implant failures occurred at the time of uncovery (at 6 weeks) and prior to loading of the implants and were attributed to lack of integration. With the exception of these two failed implants, there was 100% success for all remaining implants using the parameters de...

Methods : Comparative evaluation of the stability ...

ANOVA was used to compare the mean implant stabilities between the three groups. Post hoc testing was done via Tukey’s honestly significant differences test to calculate the differences between ISQ measurements at the time of implant placement, 6 weeks and 6 and 12 months (Fig. 2) as well as bone levels at 6 and 12 months (Fig. 3). The correlations of multiple parameters such as insertion t...

Methods : Comparative evaluation of the stability ...

Following proper approval by the LSUHSC Institution Review Board (LSUNO IRB#7438), 27 (30 implant sites) systemically healthy patients at least 18 years old were enrolled in the study and randomly divided into three groups as follows (inclusion and exclusion criteria are described in detail in Table 1): Group A received 10 OSPTX implants using the soft bone surgical protocol (OSPTXSoft). Group...

Background : Comparative evaluation of the stabili...

A recent systematic review by Stocchero et al. concluded that an undersized drilling protocol in soft bone is an effective way to enhance insertion torque but recommended that further clinical studies are needed to confirm these data [18]. Our study was designed to address this question, as it compared the standard drilling protocol to a soft bone protocol. Our study hypothesis is that the stabil...

Background : Comparative evaluation of the stabili...

Dental implants are now a widely accepted treatment option for the replacement of missing teeth. The therapeutic goal of dental implants is to support restorations that replace single or multiple missing teeth so as to provide patient comfort, function, and esthetics as well as assist in the ongoing maintenance of remaining intraoral and perioral structures. However, anatomic limitations such as t...

Abstract : Comparative evaluation of the stability...

Survival and stability of OSPTX and OSP implants is comparable. Osteotomy preparation by either standard or soft bone surgical protocol presented no significant effect on implant survival and stability for the specific implant designs.

Abstract : Comparative evaluation of the stability...

The purpose of this study was to compare a parallel wall design implant to a tapered apex design implant when placed in the posterior maxilla using two different surgical protocols. Twenty-seven patients (30 implants) were divided into three groups. All implants were 4 mm wide in diameter and 8 mm long. Group A received 10 tapered implants (OSPTX) (Astra Tech OsseoSpeed TX™) using the soft b...

Fig. 6. Cumulative survival rate of complication-f...

Fig. 6. Cumulative survival rate of complication-free prostheses by a gender (p = 0.1220) and b type of prostheses (p 

Fig. 5. Kaplan-Meier cumulative survival rate of c...

Fig. 5. Kaplan-Meier cumulative survival rate of complication-free prostheses at 10, 15, and 25 years after the prosthesis setting Fig. 5. Kaplan-Meier cumulative survival rate of complication-free prostheses at 10, 15, and 25 years after the prosthesis setting

Fig. 4. Cumulative incidence of peri-implantitis b...

Fig. 4. Cumulative incidence of peri-implantitis by a gender (p = 0.0221), b implant type (p = 0.0128), c implant position (p = 0.2470), d presence of additional soft tissue management (p = 0.2488), and e width of keratinized mucosa around implant (p = 0.0045). Log rank test was used for assessing statistical significance Fig. 4. Cumulative incidence of peri-implantitis by a gender ...

Fig. 3. Cumulative incidence of peri-implantitis :...

Fig. 3. Cumulative incidence of peri-implantitis Fig. 3. Cumulative incidence of peri-implantitis

Fig. 2. Kaplan-Meier cumulative survival rates by ...

Fig. 2. Kaplan-Meier cumulative survival rates by a gender (p = 0.1049), b implant type (p = 0.6259), c implant position (p 

Fig. 1. Kaplan-Meier cumulative survival rate at 1...

Fig. 1. Kaplan-Meier cumulative survival rate at 10, 15, and 25 years after the prosthesis setting Fig. 1. Kaplan-Meier cumulative survival rate at 10, 15, and 25 years after the prosthesis setting

Table 7 Cox regression analyses for cumulative sur...

  Hazard ratio 95% confidence interval p value Gender (male) 1.82 0.946~3.487 ...

Table 6 Cox regression analyses for cumulative inc...

  Hazard ratio 95% confidence interval p value Gender (male) 2.38 1.138~5.362 ...

Table 5 Cox regression analyses for implant surviv...

  Hazard ratio 95% confidence interval p value Gender (male) 1.99 0.538~8.201 ...

Table 4 Distribution of implants by length and loc...

Dia. (mm) Maxilla anterior Maxilla posterior Mandible anterior Mandible posterior Tot...

Table 3 Distribution of implants by diameter and l...

Dia. (mm) Maxilla anterior Maxilla posterior Mandible anterior Mandible posterior Tot...

Table 2 Distribution of implants in situ (n = 22...

Position 1 2 3 4 5 6 ...

Table 1 Age and gender distributions (n = 92) : ...

Age/gender Male Female Total 20–29 3 ...

About this article : Retrospective cohort study of...

Horikawa, T., Odatsu, T., Itoh, T. et al. Retrospective cohort study of rough-surface titanium implants with at least 25 years’ function. Int J Implant Dent 3, 42 (2017). https://doi.org/10.1186/s40729-017-0101-7 Download citation Received: 26 April 2017 Accepted: 28 August 2017 Published: 05 September 2017 DOI: https://doi.org/10.1186/s40729-017-0101-7

Rights and permissions : Retrospective cohort stud...

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were...

Ethics declarations : Retrospective cohort study o...

Tadashi Horikawa, Tetsurou Odatsu, Takatoshi Itoh, Yoshiki Soejima, Hutoshi Morinaga, Naruyoshi Abe, Naoyuki Tsuchiya, Toshikazu Iijima, and Takashi Sawase declare that they have no competing interests. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Author information : Retrospective cohort study of...

You can also search for this author in PubMed Google Scholar TH, TO, and TS initiated and designed the retrospective study and drafted the manuscript including the preparation of figures and tables. TH, TAI, YS, HM, NA, NT, and TOI reviewed the medical records and collected the data. All authors revised the manuscript and approved the final manuscript. Correspondence to...

Author information : Retrospective cohort study of...

Kyushu Implant Research Group, 4-14 Kokaihonmachi, Chuo-ku, Kumamoto, 860-0851, Japan Tadashi Horikawa, Takatoshi Itoh, Yoshiki Soejima, Hutoshi Morinaga, Naruyoshi Abe, Naoyuki Tsuchiya, Toshikazu Iijima & Takashi Sawase Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan Tetsurou Odatsu & Takash...

References : Retrospective cohort study of rough-s...

Pjetursson BE, Thoma D, Jung R, Zwahlen M, Zembic A. A systematic review of the survival and complication rates of implant-supported fixed dental prostheses (FDPs) after a mean observation period of at least 5 years. Clin Oral Implants Res. 2012;23(Suppl 6):22–38. Dorner S, Zeman F, Koller M, Lang R, Handel G, Behr M. Clinical performance of complete dentures: a retrospective study. Int J Prost...

References : Retrospective cohort study of rough-s...

Duda M, Matalon S, Lewinstein I, Harel N, Block J, Ormianer Z. One piece immediately loading implants versus 1 piece or 2 pieces delayed: 3 years outcome. Implant Dent. 2016;25:109–13. Wennerberg A, Albrektsson T. Effects of titanium surface topography on bone integration: a systematic review. Clin Oral Implants Res. 2009;20(Suppl 4):172–84. Teughels W, Van Assche N, Sliepen I, Quirynen M. E...

References : Retrospective cohort study of rough-s...

Dahlin C, Linde A, Gottlow J, Nyman S. Healing of bone defects by guided tissue regeneration. Plast Reconstr Surg. 1988;81:672–6. Boyne PJ, James RA. Grafting of the maxillary sinus floor with autogenous marrow and bone. J Oral Surg. 1980;38:613–6. Hellem S, Karlsson U, Almfeldt I, Brunell G, Hamp SE, Astrand P. Nonsubmerged implants in the treatment of the edentulous lower jaw: a 5-year pro...

References : Retrospective cohort study of rough-s...

Brånemark PI, Adell R, Breine U, Hansson BO, Lindström J, Ohlsson A. Intra-osseous anchorage of dental prostheses. I. Experimental studies. Scand J Plast Reconstr Surg. 1969;3:81–100. Buser D, Sennerby L, De Bruyn H. Modern implant dentistry based on osseointegration: 50 years of progress, current trends and open questions. Periodontol. 2017;73:7–21. Ekelund JA, Lindquist LW, Carlsson GE, ...

Conclusions : Retrospective cohort study of rough-...

In conclusion, our analyses revealed a cumulative survival rate of 89.8% of TPS-surface implants with at least 25 years of functioning. The survival rate of maxillary positioned implants was significantly lower than that of mandibulary positioned implants. The patient gender, implant location, and width of keratinized mucosa affected the rate of peri-implantitis, resulting in late failure. Implan...

Discussion : Retrospective cohort study of rough-s...

We also observed that the tooth-implant-supported prostheses had a lower complication-free rate than implant-supported fixed prostheses due to caries, periodontitis, or the root fracture of abutment teeth. Lang et al. reported that the survival rates of tooth implant-supported fixed partial dentures were 94.1% after 5 years and 77.8% after 10 years of functioning [31], and these results were alm...

Discussion : Retrospective cohort study of rough-s...

Regarding the width of keratinized mucosa, many studies and a review have indicated that the presence of a sufficient width of keratinized mucosa is necessary for maintaining healthy peri-implants [26,27,28,29]. In the present study, when 2 mm of keratinized mucosa was used as the adequate width, the p value was 0.053 (data not shown). This also showed the tendency of the availability of keratini...

Discussion : Retrospective cohort study of rough-s...

Peri-implantitis is the major reason for late failure [13, 14]. The consensus report of the Sixth European Workshop on Periodontology described peri-implant mucositis in approx. 80% of subjects restored with implant, and peri-implantitis in 28–56% of subjects [15]. In the present study, the cumulative incidence of peri-implantitis was 9.5, 15.3, 21.0, and 27.9% at 5, 10, 15, and 25 years after ...

Discussion : Retrospective cohort study of rough-s...

Although all implants used in this study were withdrawn from the market about 20 years before, the longitudinal clinical outcomes over decades will help to better understand potential factors leading to implant failure or complications and assess the safe and predictable use of dental implant. Our analyses revealed a 25-year cumulative survival rate of 89.8% after the prosthesis setting, which se...

Results : Retrospective cohort study of rough-surf...

A total of 48 implants were eventually accompanied by a peri-implant infection: the cumulative incidence of peri-implantitis was 9.5, 15.3, 21.0, and 27.9% at 5, 10, 15, and 25 years after the prosthesis delivery, respectively (Fig. 3). After stepwise backward selection, the gender, implant type, and width of keratinized mucosa showed the significant difference in the cumulative survival rate (T...

Results : Retrospective cohort study of rough-surf...

A total of 92 patients (38 men, 54 women; mean age 54.3 years, range 20–78) received implant-supported prostheses (at the seven private practices) between 1984 and 1990. The distribution of patients by age and gender is presented in Table 1. Fifty-seven patients (140 implants) were considered dropouts due to the fact that no data were obtained at the endpoint, but 25 years had passed since th...

Methods : Retrospective cohort study of rough-surf...

This retrospective observational study was approved by the ethical committee of Nagasaki University (No. 1512). The cases of all of the patients who underwent dental implant treatment with a TPS-surfaced solid-screw implant and whose prosthesis was set in the years 1984–1990 at seven private practices were analyzed. All inserted implants were either a TPS-type (TPS-type, Institute Straumann, Bas...

Background : Retrospective cohort study of rough-s...

Dental implant treatment based on the concept of osseointegration [1] is now a widely accepted restorative treatment for fully and partially edentulous patients. In the earliest days of the use of osseointegrated implants, two different topographies were applied on the implant surfaces: a machined minimally rough titanium surface such as the Brånemark system and a rough microporous titanium plasm...

Abstract : Retrospective cohort study of rough-sur...

The longitudinal clinical outcomes over decades contribute to know potential factors leading to implant failure or complications and help in the decision of treatment alternatives. The cases of all patients who received dental implants treated with titanium plasma-sprayed surfaces and whose prostheses were set in the period 1984–1990 at seven private practices were retrospectively analyzed. The...

Table 5 Implant failure rates : Mucositis, peri-im...

  Failure rate n Univariate analyses Multivariate analyses OR (95% CI) P OR ...

Table 4 Risk factors for peri-implantitis : Mucosi...

  Peri-implantitis n Univariate analyses Multivariate analyses   OR (95% CI) P ...

Table 3 Risk factors for mucositis : Mucositis, pe...

  Mucositis n Univariate analyses Multivariate analyses OR (95% CI) P OR ...

Table 2 Observation period (patient and implant re...

Years Patients (total) GCP patients GAP patients Implants (total) Implants maxilla ...

Table 1 Implants in study population : Mucositis, ...

  GCP GAP Patient 24 5 Sex ...

About this article : Mucositis, peri-implantitis, ...

Mengel, R., Heim, T. & Thöne-Mühling, M. Mucositis, peri-implantitis, and survival and success rates of oxide-coated implants in patients treated for periodontitis 3- to 6-year results of a case-series study. Int J Implant Dent 3, 48 (2017). https://doi.org/10.1186/s40729-017-0110-6 Download citation Received: 29 August 2017 Accepted: 26 October 2017 Published: 28 Novemb...

Rights and permissions : Mucositis, peri-implantit...

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were...

Ethics declarations : Mucositis, peri-implantitis,...

RM is a professor at the Department of Prosthetic Dentistry, School of Dental Medicine, Philipps-University, Marburg/Lahn, Germany. TH is a private practicioner in Gruben, Brandenburg, Germany. MT is a researcher at the Department of Prosthetic Dentistry, School of Dental Medicine, Philipps-University, Marburg/Lahn, Germany. This clinical study was conducted in accordance with the World Medical A...

Author information : Mucositis, peri-implantitis, ...

Department of Prosthetic Dentistry, School of Dental Medicine, Philipps-University, Marburg/Lahn, Germany Reiner Mengel & Miriam Thöne-Mühling Gruben, Brandenburg, Germany Theresa Heim You can also search for this author in PubMed Google Scholar You can also search for this author in PubMed Google Scholar You can also search for this au...

References : Mucositis, peri-implantitis, and surv...

Kim K-K, Sung H-M. Outcomes of dental implant treatment in patients with generalized aggressive periodontitis: a systematic review. J Adv Prosthodont. 2012;4:210–7. Pettersson K, Mengel R. Comments on the statistical analysis of the paper by Albouy et al comparing four different types of implants with respect to ‘spontaneous’ progression of peri-implantitis. Eur J Oral Implantol. 2011;1:9...

References : Mucositis, peri-implantitis, and surv...

Kinane DF, Radvar M. The effect of smoking on mechanical and antimicrobial periodontal therapy. J Periodontol. 1997;69:467–72. Swierkot K, Lottholz P, Flores-de-Jacoby L, Mengel R. Mucositis, peri-implantitis, implant success, and survival of implants in patients with treated generalized aggressive periodontitis: 3- to 16-year results of a prospective long-term cohort study. J Periodontol. 2012...

References : Mucositis, peri-implantitis, and surv...

Jungner M, Lundqvist P, Lundgren S. A retrospective comparison of oxidized and turned implants with respect to implant survival, marginal bone level and peri-implant soft tissue conditions after at least 5 years in function. Clin Implant Dent Relat Res. 2014;16:230–7. Rocci A, Rocci M, Rocci C, Scoccia A, Gargari M, Martignoni M, Gottlow J, Sennerby L. Immediate loading of Brånemark system TiU...

References : Mucositis, peri-implantitis, and surv...

Esposito M, Ardebili Y, Worthington HV. Interventions for replacing missing teeth: different types of dental implants. Cochrane Database Sys Rev. 2014;7:CD003815. Salata LA, Burgos PM, Rasmusson L, Novaes AB, Papalexiou V, Dahlin C, Sennerby L. Osseointegration of oxidized and turned implants in circumferential bone defects with and without adjunctive therapies: an experimental study on BMP-2 and...

Conclusions : Mucositis, peri-implantitis, and sur...

The results of the present case series study should be interpreted in a critical light because of the small study population. However, it can be concluded that periodontally diseased subjects treated in a supportive periodontal therapy can be successfully rehabilitated with oxide-coated dental implants for a follow-up period of 3 to 6 years. The results suggest that implants in the maxilla and in...

Discussion : Mucositis, peri-implantitis, and surv...

These results from long-term clinical studies indicate that oxide-coated implants achieve equivalent survival rates and prevalence of mucositis and peri-implantitis when compared to implants with other surface characteristics. They support the assumption that the implant surface has little influence on the development of mucositis or peri-implantitis. This was subsequently confirmed in a Cochrane ...

Discussion : Mucositis, peri-implantitis, and surv...

The present study examines the success rates of oxide-coated implants in subjects with treated periodontal disease. Several long-term clinical studies on periodontally healthy subjects have revealed survival rates of 97.1 to 99.2% for oxide-coated implants [10, 24, 25]. The results of the present study show a comparable implant survival rate (96.2% in GAP and 97.1% in GCP subjects) for subjects wi...

Discussion : Mucositis, peri-implantitis, and surv...

The present study examines the success rates of oxide-coated implants in subjects with treated periodontal disease. Several long-term clinical studies on periodontally healthy subjects have revealed survival rates of 97.1 to 99.2% for oxide-coated implants [10, 24, 25]. The results of the present study show a comparable implant survival rate (96.2% in GAP and 97.1% in GCP subjects) for subjects wi...

Results : Mucositis, peri-implantitis, and surviva...

The univariate analyses showed a significantly higher risk for peri-implantitis in GAP subjects (OR = 3.294 with p = 0.027) and at implants with bone quality grade 3 (OR = 21.200 with p = 0.000). However, these differences were not significant in multivariate analyses. Both the uni- and multivariate patient-related analyses were non-significant. The implant success rate was 77.9% for GCP...

Results : Mucositis, peri-implantitis, and surviva...

All 29 subjects were examined over the period of 3 to 6 years (Table 2). For the duration of the observation period, all the remaining teeth were periodontally healthy, with PDs ≤ 3 mm and negative BOP. All subjects were non-smokers, had excellent oral hygiene, attended the follow-up examinations on a regular basis, and had no systemic disease. In total, four implants (3.1%) were lost du...

Materials and methods : Mucositis, peri-implantiti...

Peri-implant mucositis was defined as PDs ≥ 5 mm with BOP and no bone loss after the first year of loading. Peri-implantitis was defined as PDs > 5 mm with or without BOP and an annual bone loss of > 0.2 mm after the first year of loading. All technical and surgical complications (e.g., fracture of the abutment screw or superstructure, compromised wound healing) were recorded. T...

Materials and methods : Mucositis, peri-implantiti...

All patients received a supportive periodontal therapy at the Dental School of Medicine, Philipps-University, Marburg, in the course of the observation period. The first clinical examination was 2 to 4 weeks before the non-retainable teeth were extracted. The periodontally healthy residual dentition and the implants were evaluated immediately after the superstructure was inserted. Subsequently, t...

Materials and methods : Mucositis, peri-implantiti...

Second-stage surgery was performed in the maxilla after 6 months and in the mandible after 3 months. Implant placement and second-stage surgery were performed by a single periodontist (R.M.). About 4 weeks after the final abutments were placed, GCP subjects were rehabilitated with single crowns, implant-supported bridges, or removable superstructures, according to the Marburg double crown syst...

Materials and methods : Mucositis, peri-implantiti...

A total of 29 partially edentulous subjects were consecutively recruited from the Dental School of Medicine, Philipps-University, Marburg, Germany between April 2010 and April 2013 (Table 1). Subjects were excluded for the following reasons: history of systemic disease (e.g., cardiovascular diseases, diabetes mellitus, osteoporosis), pregnancy, untreated caries, current orthodontic treatment, con...

Background : Mucositis, peri-implantitis, and surv...

The aim of this long-term clinical study on partially edentulous subjects treated for periodontal disease was to evaluate the prevalence of mucositis and peri-implantitis and to determine the survival and success rates of dental implants with oxide-coated surfaces.

Background : Mucositis, peri-implantitis, and surv...

In recent years, a great number of different implant systems varying in materials, surface structure, and macroscopic design have been introduced to the dental market [1]. In studies using implants with modified surfaces, it was concluded that rough surfaces induce a stronger initial bone response, achieve stability more rapidly, and integrate more fully with extant bone [2,3,4,5,6]. Dental implan...

Abstract : Mucositis, peri-implantitis, and surviv...

The aim of this case-series study is to evaluate the prevalence of mucositis, peri-implantitis, and survival and success rates of oxide-coated implants in subjects treated for periodontitis. Twenty-four subjects treated for generalized chronic periodontitis (GCP) and five treated for generalized aggressive periodontitis (GAP) were orally rehabilitated with a total of 130 dental implants. Subjects...

Fig. 3. Mean bone loss at 6 months and 1 year. M...

Fig. 3. Mean bone loss at 6 months and 1 year. Mean bone loss distribution charts at 6 months and 1 year present no statistically significant difference. p value at 6 months was 0.2981 and at 1 year 0.6613 Fig. 3. Mean bone loss at 6 months and 1 year. Mean bone loss distribution charts at 6 months and 1 year present no statistically significant difference. p value at 6 months was ...

Fig. 2. ISQ values at placement, 6 weeks, 6 mont...

Fig. 2. ISQ values at placement, 6 weeks, 6 months, and 1 year. Mean and standard deviation of ISQ values taken at placement, 6 weeks, 6 months, and 1 year is presented. No statistical significant difference was determined between ISQ values at all time points. (p 

Fig. 1. Implant design. The OSPTX and OSP implants...

Fig. 1. Implant design. The OSPTX and OSP implants are manufactured from high-grade commercially pure titanium with surface roughness produced via a fluoride treatment process. The OSP implant is a screw-shaped self-tapping implant. The diameter used in this study was 4.0 mm. The implant length used in this study was 8 mm. The OSPTX implant has the same features as the OSP except the apex of t...

Table 2 Outcome success criteria : Comparative eva...

Implant success Clinically immobile when tested manually and/or with RFA (minimum ISQ = 65) Absence of peri-implant radiolucency present on an undistorted radiograph Absence of unresolved pain, discomfort, inf...

Table 1 Patient selection criteria : Comparative e...

Inclusion Male or female At least 18 years old Healthy enough to undergo routine implant surgery and subsequent dental treatment Partially edentulous requiring...

About this article : Comparative evaluation of the...

Simmons, D.E., Maney, P., Teitelbaum, A.G. et al. Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study. Int J Implant Dent 3, 16 (2017). https://doi.org/10.1186/s40729-017-0078-2 Download citation Received: 18 January 2017 Accepted: 22 April 2017 Published: 02 May 2017 DOI: https://doi.org/10.1186/s40729-01...

Rights and permissions : Comparative evaluation of...

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were...

Author information : Comparative evaluation of the...

Department of Periodontics, Louisiana State University Health Sciences Center School of Dentistry, 1100 Florida Avenue, New Orleans, LA, 70119, USA David E. Simmons, Pooja Maney, Austin G. Teitelbaum, Susan Billiot & A. Archontia Palaiologou Tulane University SPHTM, 1440 Canal St, Suite 2001, New Orleans, LA, 70130, USA Lomesh J. Popat You can also search for this author in ...

References : Comparative evaluation of the stabili...

De Bruyn H, Raes F, Cooper LF, Reside G, Garriga JS, Tarrida LG, et al. Three-years clinical outcome of immediate provisionalization of single Osseospeed() implants in extraction sockets and healed ridges. Clin Oral Implants Res. 2013;24(2):217–23. Ebler S, Ioannidis A, Jung RE, Hammerle CH, Thoma DS. Prospective randomized controlled clinical study comparing two types of two-piece dental impla...

References : Comparative evaluation of the stabili...

O'Sullivan D, Sennerby L, Meredith N. Influence of implant taper on the primary and secondary stability of osseointegrated titanium implants. Clin Oral Implants Res. 2004;15(4):474–80. Schwartz-Arad D, Herzberg R, Levin L. Evaluation of long-term implant success. J Periodontol. 2005;76(10):1623–8. Alves CC, Neves M. Tapered implants: from indications to advantages. Int J Periodontics Restora...

References : Comparative evaluation of the stabili...

Anitua E, Orive G. Short implants in maxillae and mandibles: a retrospective study with 1 to 8 years of follow-up. J Periodontol. 2010;81(6):819–26. Feldman S, Boitel N, Weng D, Kohles SS, Stach RM. Five-year survival distributions of short-length (10 mm or less) machined-surfaced and Osseotite implants. Clin Implant Dent Relat Res. 2004;6(1):16–23. Felice P, Cannizzaro G, Checchi V, March...

Notes : Comparative evaluation of the stability of...

DENTSPLY International, Susquehanna Commerce Center, 221 West Philadelphia Street, York, PA 17401 I-CAT 17 19; Imaging Services International LLC, 1910 North Penn Rd., Hatfield, PA 19440 Intra-Lock International, 6560 S. West Rogers Circle, Suite 24, Boca Raton, FL 33487 Osstell USA, 6700 Alexander Bell Drive, Suite 200, Columbia, MD 21046 ImageJ 1.50i Wayne Rasband National Institutes of Heal...

Conclusions : Comparative evaluation of the stabil...

Survival rates and stability of OSP and OSPTX implants was comparable. Osteotomy preparation either by the standard or by the soft bone surgical protocol had no significant effect on implant survival, success, and stability. Insertion torque presented a moderate to strong correlation with ISQ values at 6 weeks, 6 months, and 1 year. Insertion torque presented a weak correlation to ISQ values...

Discussion : Comparative evaluation of the stabili...

Insertion torque presented a moderate to strong correlation with ISQ values at 6 weeks, 6 months, and 1 year but not at time of implant insertion. This finding is in agreement with Acil et al. who reported no statistically significant correlation between insertion torque and ISQ at time of implant placement [22]. Although a strong correlation was found between insertion torque and bone loss at...

Discussion : Comparative evaluation of the stabili...

Augmentation of the maxillary sinus prior to dental implant placement is routinely performed in order to help patients restore their maxillary posterior dentition. Unfortunately, not all patients are candidates for this procedure due to either health, personal, or financial concerns. An alternative treatment without the need for a sinus elevation procedure is the use of a shorter implant. Research...

Results : Comparative evaluation of the stability ...

Overall implant survival rate was 93.3%. Two implants failed, one implant in group A (OSPTXSoft) and one in group B (OSPTXStd). Both implant failures occurred at the time of uncovery (at 6 weeks) and prior to loading of the implants and were attributed to lack of integration. With the exception of these two failed implants, there was 100% success for all remaining implants using the parameters de...

Methods : Comparative evaluation of the stability ...

ANOVA was used to compare the mean implant stabilities between the three groups. Post hoc testing was done via Tukey’s honestly significant differences test to calculate the differences between ISQ measurements at the time of implant placement, 6 weeks and 6 and 12 months (Fig. 2) as well as bone levels at 6 and 12 months (Fig. 3). The correlations of multiple parameters such as insertion t...

Methods : Comparative evaluation of the stability ...

Following proper approval by the LSUHSC Institution Review Board (LSUNO IRB#7438), 27 (30 implant sites) systemically healthy patients at least 18 years old were enrolled in the study and randomly divided into three groups as follows (inclusion and exclusion criteria are described in detail in Table 1): Group A received 10 OSPTX implants using the soft bone surgical protocol (OSPTXSoft). G...

Background : Comparative evaluation of the stabili...

A recent systematic review by Stocchero et al. concluded that an undersized drilling protocol in soft bone is an effective way to enhance insertion torque but recommended that further clinical studies are needed to confirm these data [18]. Our study was designed to address this question, as it compared the standard drilling protocol to a soft bone protocol. Our study hypothesis is that the stabil...

Background : Comparative evaluation of the stabili...

Dental implants are now a widely accepted treatment option for the replacement of missing teeth. The therapeutic goal of dental implants is to support restorations that replace single or multiple missing teeth so as to provide patient comfort, function, and esthetics as well as assist in the ongoing maintenance of remaining intraoral and perioral structures. However, anatomic limitations such as t...

Abstract : Comparative evaluation of the stability...

Survival and stability of OSPTX and OSP implants is comparable. Osteotomy preparation by either standard or soft bone surgical protocol presented no significant effect on implant survival and stability for the specific implant designs.

Abstract : Comparative evaluation of the stability...

The purpose of this study was to compare a parallel wall design implant to a tapered apex design implant when placed in the posterior maxilla using two different surgical protocols. Twenty-seven patients (30 implants) were divided into three groups. All implants were 4 mm wide in diameter and 8 mm long. Group A received 10 tapered implants (OSPTX) (Astra Tech OsseoSpeed TX™) using the soft b...

Fig. 2. a Radiographic image of a 3.5-mm-wide by 7...

Fig. 2. a Radiographic image of a 3.5-mm-wide by 7-mm-length dental implant at the time of its placement at the mandibular left second premolar in a 63-year-old Caucasian female. b Radiographic image of a three-unit fixed partial denture upon its initial placement. The dental implant is the anterior abutment with the prosthesis screw retained to it. The distal abutment is the mandibular left sec...

Fig. 1. a Initial radiograph exposed at abutment i...

Fig. 1. a Initial radiograph exposed at abutment installation on a 5-mm-wide by 7-mm-length dental implant used to help support a removable partial denture for a 71-year-old Caucasian male. b Radiograph of the area taken at 82 months demonstrates good bone stability. c Clinical image of the area 82 months later. Soft tissue remains healthy. The two teeth anterior are in the process of receivin...

Table 5 Resonance frequency analysis : A 1–7 ye...

Time ISQ n Implant insertion 73.6 ± 8.1 86 1–4 weeks ...

Table 4 Implant survival, life table analysis : A ...

Interval Implants Failed Not followed CSR (%) Insertion to 1 year ...

Table 3 Specification of failed implants (three im...

Sex Age Smoker Risk factors Position Implant diameter ...

Table 2 Implant and site-related specifications : ...

  Number Percent Jaw Maxilla 60 69.8 Mandible ...

Table 1 Patient demographics : A 1–7 year retro...

  Number Percent Age (years) 20–29 1 1.3 30–39 ...

About this article : A 1–7 year retrospective f...

Rosen, P.S., Sahlin, H., Seemann, R. et al. A 1–7 year retrospective follow-up on consecutively placed 7-mm-long dental implants with an electrowetted surface. Int J Implant Dent 4, 24 (2018). https://doi.org/10.1186/s40729-018-0136-4 Download citation Received: 08 January 2018 Accepted: 21 May 2018 Published: 23 August 2018 DOI: https://doi.org/10.1186/s40729-018-0136...

Rights and permissions : A 1–7 year retrospecti...

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were m...

Ethics declarations : A 1–7 year retrospective ...

The study was performed in compliance with the Declaration of Helsinki. Data collection was performed in such a manner that subjects could not be identified, and therefore, it was exempt from IRB review according to Federal Regulation 45 CFR 46.101(b). All participants consented to publish their information details through the clinic’s standard patient consent procedure. Also, all images appear...

Author information : A 1–7 year retrospective f...

Clinical Professor of Periodontics, Baltimore College of Dental Surgery, University of Maryland Dental School, Baltimore, MD, USA Paul S. Rosen Private Practice limited to Periodontics and Dental Implants, 907 Floral Vale Boulevard, Yardley, PA, 19067, USA Paul S. Rosen Neoss Ltd, Gothenburg, Sweden Herman Sahlin University Clinic of Craniofacial, Maxillofacial and Oral Surgery, Vienna, Aust...

Availability of data and materials : A 1–7 year...

Due to the ethical and legal responsibility to respect participants’ rights to privacy and to protect their identity, the clinical dataset is not made publicly available.

References : A 1–7 year retrospective follow-up...

Srinivasan M, Vazquez L, Rieder P, Moraguez O, Bernard JP, Belser UC. Survival rates of short (6 mm) micro-rough surface implants: a review of literature and meta-analysis. Clin Oral Implants Res. 2014;25(5):539–45. Chrcanovic BR, Albrektsson T, Wennerberg A. Diabetes and oral implant failure: a systematic review. J Dent Res. 2014;93(9):859–67. Giro G, Chambrone L, Goldstein A, Rodrigues JA,...

References : A 1–7 year retrospective follow-up...

Jemt T, Olsson M, Franke SV. Incidence of first implant failure: a retroprospective study of 27 years of implant operations at one specialist clinic. Clin Implant Dent Relat Res. 2015;17(Suppl 2):e501–10. Pommer B, Frantal S, Willer J, Posch M, Watzek G, Tepper G. Impact of dental implant length on early failure rates: a meta-analysis of observational studies. J Clin Periodontol. 2011;38(9):856...

Abbreviations : A 1–7 year retrospective follow...

Cumulative survival rate Implant stability quotient Insertion torque Odds ratio Resonance frequency analysis Relative risk

Conclusion : A 1–7 year retrospective follow-up...

The current retrospective consecutive case series study provides preliminary data that treatment with 7-mm-length short implants with a hydrophilic electrowetted surface is a reasonable approach in sites with limited vertical bone dimension. It adds to the body of evidence supporting short implant use for compromised sites. The success seen might be attributed to the larger implant diameters that ...

Discussion : A 1–7 year retrospective follow-up...

Thirty-six percent of the implants in the study were placed in extraction sockets. Provided that sufficient initial implant stability is achieved, there should be no additional risk factors compared to implants in healed sites. Studies have shown no difference in marginal bone remodeling between immediately placed and delayed implants [15]. The biggest limitation of the current study is its very ...

Discussion : A 1–7 year retrospective follow-up...

A wide distribution in implant insertion torque (10–50 Ncm) was seen in the study. This reflects the variety of clinical situations in which the implants were placed. Assessments were made by using both the RFA value and the insertion torque as to first whether an implant should have been left to heal in the first place and if so, how this would be best accomplished, i.e., through its submergen...

Discussion : A 1–7 year retrospective follow-up...

This retrospective study is the first to look at short dental implants with a hydrophilic electrowetted surface. The survival data suggest that this treatment is a viable option to care. In a systematic review that identified 13 studies on implants shorter than 10 mm, the CSR from the individual studies ranged from 80 to 100% with a combined CSR of 98.3% after 5 years, 94.8% after 6 years, and ...

Results : A 1–7 year retrospective follow-up on...

The chart review identified 86 placed implants in 75 patients. Table 1 summarizes the patient demographics of the 75 patients. Patients ranged in age from 29 to 88 years with a mean of 61.0 ± 12.5 years. Twenty-seven of the patients were males and 48 were females. Table 2 summarizes the implant and site-related information of the 86 placed implants. Mean insertion torque was 30.1 ± 7...

Methods : A 1–7 year retrospective follow-up on...

Baseline parameters, both patient- and implant-related, as well as follow-up parameters (implant survival, follow-up time, and resonance frequency analysis) were collected from a review of the patient records. The main study parameters (principal outcome parameters) were defined to be implant loss and follow-up time. The cumulative survival rate was estimated. The influence of several factors on ...

Methods : A 1–7 year retrospective follow-up on...

A retrospective study on short 7 mm hydrophilic implants from a single center was conducted in a private practice limited to periodontics and surgical dental implant placements from one of the authors, PSR (Yardley, Pennsylvania, USA). An exhaustive chart review identified 75 patients for analysis that were treated with 86 short (7 mm) implants during a 5-year period (September 1, 2009, to Novem...

Background : A 1–7 year retrospective follow-up...

The aim of this retrospective consecutive case series study was to investigate implant survival rate and analyze possible factors affecting the survival of short implants placed in one surgical practice focused on implantology and periodontology in a temporal cohort.

Background : A 1–7 year retrospective follow-up...

In the past decades, the osseointegration rate of dental implants has dramatically increased, particularly in sites of softer dental bone, which may be attributed to the introduction of moderately roughened surfaces [1, 2]. Moreover, because of this increase in success, clinicians have attempted to push the envelope and place implants into sites that may provide a greater challenge as they wish to...

Abstract : A 1–7 year retrospective follow-up o...

This retrospective consecutive case series study was performed to determinate the survival rate and implant stability of short (7 mm length) dental implants with an electrowetted hydrophilic surface that were in function from 1 to 7 years. A retrospective chart review identified and evaluated 86 consecutively placed 7-mm-long dental implants (ProActive, Neoss Ltd., Harrogate, England) in 75 pat...

Table 5 Implant failure rates : Mucositis, peri-im...

  Failure rate n Univariate analyses Multivariate analyses OR (95% CI) P OR ...

Table 4 Risk factors for peri-implantitis : Mucosi...

  Peri-implantitis n Univariate analyses Multivariate analyses   OR (95% CI) P ...

Table 3 Risk factors for mucositis : Mucositis, pe...

  Mucositis n Univariate analyses Multivariate analyses OR (95% CI) P OR ...

Table 2 Observation period (patient and implant re...

Years Patients (total) GCP patients GAP patients Implants (total) Implants maxilla ...

Table 1 Implants in study population : Mucositis, ...

  GCP GAP Patient 24 5 Sex ...

About this article : Mucositis, peri-implantitis, ...

Mengel, R., Heim, T. & Thöne-Mühling, M. Mucositis, peri-implantitis, and survival and success rates of oxide-coated implants in patients treated for periodontitis 3- to 6-year results of a case-series study. Int J Implant Dent 3, 48 (2017). https://doi.org/10.1186/s40729-017-0110-6 Download citation Received: 29 August 2017 Accepted: 26 October 2017 Published: 28 Novemb...

Rights and permissions : Mucositis, peri-implantit...

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were...

Ethics declarations : Mucositis, peri-implantitis,...

RM is a professor at the Department of Prosthetic Dentistry, School of Dental Medicine, Philipps-University, Marburg/Lahn, Germany. TH is a private practicioner in Gruben, Brandenburg, Germany. MT is a researcher at the Department of Prosthetic Dentistry, School of Dental Medicine, Philipps-University, Marburg/Lahn, Germany. This clinical study was conducted in accordance with the World Medical A...

Author information : Mucositis, peri-implantitis, ...

Department of Prosthetic Dentistry, School of Dental Medicine, Philipps-University, Marburg/Lahn, Germany Reiner Mengel & Miriam Thöne-Mühling Gruben, Brandenburg, Germany Theresa Heim You can also search for this author in PubMed Google Scholar You can also search for this author in PubMed Google Scholar You can also search for this au...

References : Mucositis, peri-implantitis, and surv...

Kim K-K, Sung H-M. Outcomes of dental implant treatment in patients with generalized aggressive periodontitis: a systematic review. J Adv Prosthodont. 2012;4:210–7. Pettersson K, Mengel R. Comments on the statistical analysis of the paper by Albouy et al comparing four different types of implants with respect to ‘spontaneous’ progression of peri-implantitis. Eur J Oral Implantol. 2011;1:9...

References : Mucositis, peri-implantitis, and surv...

Kinane DF, Radvar M. The effect of smoking on mechanical and antimicrobial periodontal therapy. J Periodontol. 1997;69:467–72. Swierkot K, Lottholz P, Flores-de-Jacoby L, Mengel R. Mucositis, peri-implantitis, implant success, and survival of implants in patients with treated generalized aggressive periodontitis: 3- to 16-year results of a prospective long-term cohort study. J Periodontol. 2012...

References : Mucositis, peri-implantitis, and surv...

Jungner M, Lundqvist P, Lundgren S. A retrospective comparison of oxidized and turned implants with respect to implant survival, marginal bone level and peri-implant soft tissue conditions after at least 5 years in function. Clin Implant Dent Relat Res. 2014;16:230–7. Rocci A, Rocci M, Rocci C, Scoccia A, Gargari M, Martignoni M, Gottlow J, Sennerby L. Immediate loading of Brånemark system TiU...

References : Mucositis, peri-implantitis, and surv...

Esposito M, Ardebili Y, Worthington HV. Interventions for replacing missing teeth: different types of dental implants. Cochrane Database Sys Rev. 2014;7:CD003815. Salata LA, Burgos PM, Rasmusson L, Novaes AB, Papalexiou V, Dahlin C, Sennerby L. Osseointegration of oxidized and turned implants in circumferential bone defects with and without adjunctive therapies: an experimental study on BMP-2 and...

Conclusions : Mucositis, peri-implantitis, and sur...

The results of the present case series study should be interpreted in a critical light because of the small study population. However, it can be concluded that periodontally diseased subjects treated in a supportive periodontal therapy can be successfully rehabilitated with oxide-coated dental implants for a follow-up period of 3 to 6 years. The results suggest that implants in the maxilla and in...

Discussion : Mucositis, peri-implantitis, and surv...

These results from long-term clinical studies indicate that oxide-coated implants achieve equivalent survival rates and prevalence of mucositis and peri-implantitis when compared to implants with other surface characteristics. They support the assumption that the implant surface has little influence on the development of mucositis or peri-implantitis. This was subsequently confirmed in a Cochrane ...

Discussion : Mucositis, peri-implantitis, and surv...

The present study examines the success rates of oxide-coated implants in subjects with treated periodontal disease. Several long-term clinical studies on periodontally healthy subjects have revealed survival rates of 97.1 to 99.2% for oxide-coated implants [10, 24, 25]. The results of the present study show a comparable implant survival rate (96.2% in GAP and 97.1% in GCP subjects) for subjects wi...

Results : Mucositis, peri-implantitis, and surviva...

The univariate analyses showed a significantly higher risk for peri-implantitis in GAP subjects (OR = 3.294 with p = 0.027) and at implants with bone quality grade 3 (OR = 21.200 with p = 0.000). However, these differences were not significant in multivariate analyses. Both the uni- and multivariate patient-related analyses were non-significant. The implant success rate was 77.9% for GCP...

Results : Mucositis, peri-implantitis, and surviva...

All 29 subjects were examined over the period of 3 to 6 years (Table 2). For the duration of the observation period, all the remaining teeth were periodontally healthy, with PDs ≤ 3 mm and negative BOP. All subjects were non-smokers, had excellent oral hygiene, attended the follow-up examinations on a regular basis, and had no systemic disease. In total, four implants (3.1%) were lost du...

Materials and methods : Mucositis, peri-implantiti...

Peri-implant mucositis was defined as PDs ≥ 5 mm with BOP and no bone loss after the first year of loading. Peri-implantitis was defined as PDs > 5 mm with or without BOP and an annual bone loss of > 0.2 mm after the first year of loading. All technical and surgical complications (e.g., fracture of the abutment screw or superstructure, compromised wound healing) were recorded. T...

Materials and methods : Mucositis, peri-implantiti...

All patients received a supportive periodontal therapy at the Dental School of Medicine, Philipps-University, Marburg, in the course of the observation period. The first clinical examination was 2 to 4 weeks before the non-retainable teeth were extracted. The periodontally healthy residual dentition and the implants were evaluated immediately after the superstructure was inserted. Subsequently, t...

Materials and methods : Mucositis, peri-implantiti...

Second-stage surgery was performed in the maxilla after 6 months and in the mandible after 3 months. Implant placement and second-stage surgery were performed by a single periodontist (R.M.). About 4 weeks after the final abutments were placed, GCP subjects were rehabilitated with single crowns, implant-supported bridges, or removable superstructures, according to the Marburg double crown syst...

Materials and methods : Mucositis, peri-implantiti...

A total of 29 partially edentulous subjects were consecutively recruited from the Dental School of Medicine, Philipps-University, Marburg, Germany between April 2010 and April 2013 (Table 1). Subjects were excluded for the following reasons: history of systemic disease (e.g., cardiovascular diseases, diabetes mellitus, osteoporosis), pregnancy, untreated caries, current orthodontic treatment, con...

Background : Mucositis, peri-implantitis, and surv...

The aim of this long-term clinical study on partially edentulous subjects treated for periodontal disease was to evaluate the prevalence of mucositis and peri-implantitis and to determine the survival and success rates of dental implants with oxide-coated surfaces.

Background : Mucositis, peri-implantitis, and surv...

In recent years, a great number of different implant systems varying in materials, surface structure, and macroscopic design have been introduced to the dental market [1]. In studies using implants with modified surfaces, it was concluded that rough surfaces induce a stronger initial bone response, achieve stability more rapidly, and integrate more fully with extant bone [2,3,4,5,6]. Dental implan...

Abstract : Mucositis, peri-implantitis, and surviv...

The aim of this case-series study is to evaluate the prevalence of mucositis, peri-implantitis, and survival and success rates of oxide-coated implants in subjects treated for periodontitis. Twenty-four subjects treated for generalized chronic periodontitis (GCP) and five treated for generalized aggressive periodontitis (GAP) were orally rehabilitated with a total of 130 dental implants. Subjects...

Fig. 5. Bone resorption in the follow-up of the co...

Fig. 5. Bone resorption in the follow-up of the control group and the perforation group Fig. 5. Bone resorption in the follow-up of the control group and the perforation group

Fig. 4. The initial bone level of the control grou...

Fig. 4. The initial bone level of the control group and the perforation group Fig. 4. The initial bone level of the control group and the perforation group

Fig. 3. Reasons for perforations : Impact of surgi...

Fig. 3. Reasons for perforations Fig. 3. Reasons for perforations

Fig. 2. Overview of the perforation treatment in t...

Fig. 2. Overview of the perforation treatment in the study group Fig. 2. Overview of the perforation treatment in the study group

Fig. 1. Bone levels after sinus floor elevation : ...

Fig. 1. Bone levels after sinus floor elevation Fig. 1. Bone levels after sinus floor elevation

Table 6 Fisher’s exact test: incidence of peri-i...

  Peri-implantitis No peri-implantitis Perforation group 12 80 Control group ...

Table 5 Fisher’s exact test: surgical strategy d...

  One-stage procedure Two-stage procedure Perforation group 11 81 Control group ...

Table 4 Multiple comparisons of subgroups: postope...

Adjusted p values multiple comparison Control group bone level  4 mm 0.0453 Control group bone level > ...

Table 3 Data summary of bone level development : I...

  Bone level preoperatively Bone level postoperatively Bone level follow-up Bone resorption Perforation group ...

Table 2 Origin of bone graft : Impact of surgical ...

Origin of bone graft No bone graft Linea obliqua Iliac crest Scapula flap Perforation...

Table 1 Distribution of implant positions : Impact...

Implant position 3 4 5 6 7 8...

About this article : Impact of surgical management...

Beck-Broichsitter, B.E., Westhoff, D., Behrens, E. et al. Impact of surgical management in cases of intraoperative membrane perforation during a sinus lift procedure: a follow-up on bone graft stability and implant success. Int J Implant Dent 4, 6 (2018). https://doi.org/10.1186/s40729-018-0116-8 Download citation Received: 03 October 2017 Accepted: 03 January 2018 Publish...

Rights and permissions : Impact of surgical manage...

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were m...

Ethics declarations : Impact of surgical managemen...

The authors Benedicta Beck-Broichsitter, Dorothea Westhoff, Eleonore Behrens, Jörg Wiltfang, and Stephan T. Becker declare that there are no existing competing interests concerning this collaborative work. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Author information : Impact of surgical management...

Correspondence to Benedicta E. Beck-Broichsitter.

Author information : Impact of surgical management...

Department of Oral and Maxillofacial Surgery, Charité–University Medical Center Berlin, Augustenburger Platz 1, 13353, Berlin, Germany Benedicta E. Beck-Broichsitter Department of Oral and Maxillofacial Surgery, Schleswig-Holstein University Hospital, Arnold-Heller-Straße 3, Haus 26, 24105, Kiel, Germany Dorothea Westhoff, Eleonore Behrens, Jörg Wiltfang & Stephan T. Becker You can al...

Funding : Impact of surgical management in cases o...

This study was not funded.

References : Impact of surgical management in case...

Shlomi B, Horowitz I, Kahn A, Dobriyan A, Chaushu G. The effect of sinus membrane perforation and repair with Lambone on the outcome of maxillary sinus floor augmentation: a radiographic assessment. Int J Oral Maxillofac Implants. 2004;19(4):559–62. Moreno Vazquez JC, Gonzalez de Rivera AS, Gil HS, Mifsut RS. Complication rate in 200 consecutive sinus lift procedures: guidelines for prevention ...

References : Impact of surgical management in case...

Sakkas A, Konstantinidis I, Winter K, Schramm A, Wilde F. Effect of Schneiderian membrane perforation on sinus lift graft outcome using two different donor sites: a retrospective study of 105 maxillary sinus elevation procedures. GMS Interdiscip Plast Reconstr Surg DGPW. 2016;5:Doc11. Springer IN, Terheyden H, Geiss S, Harle F, Hedderich J, Acil Y. Particulated bone grafts—effectiveness of bone...

References : Impact of surgical management in case...

Wiltfang J, Schultze-Mosgau S, Nkenke E, Thorwarth M, Neukam FW, Schlegel KA. Onlay augmentation versus sinuslift procedure in the treatment of the severely resorbed maxilla: a 5-year comparative longitudinal study. Int J Oral Maxillofac Surg. 2005;34(8):885–9. Pikos MA. Maxillary sinus membrane repair: report of a technique for large perforations. Implant Dent. 1999;8(1):29–34. Cha HS, Kim ...

Conclusions : Impact of surgical management in cas...

In conclusion, and within the limits of its retrospective nature, our study implies that in cases of intraoperative perforation of the Schneiderian membrane, a consequent surgical assessment and treatment might avoid complications regarding graft stability and implant survival. Two-stage procedures might be appropriate if primary stability does not seem to be achievable. Augmentation of the sinus ...

Discussion : Impact of surgical management in case...

The surgical management in cases of a membrane perforation might also influence the overall postoperative outcome and complications. Although the sinus lifting procedure has been established for many years now, there are no evidence-based guidelines for perforation closure or indications to interrupt the procedure. To date, most existing studies recommend sealing smaller sizes of perforations with...

Discussion : Impact of surgical management in case...

One implant was lost in the perforation group due to early-onset peri-implantitis, whereas all implants in the control group were still in place. As we had previously prospectively reported on the first 6 months after dental implantation in this cohort [11], there was no further impact of membrane perforation on implant loss for at least 12 to 24 months in this retrospective evaluation. The appe...

Discussion : Impact of surgical management in case...

The aim of this retrospective cohort study was to evaluate the impact of intraoperative perforations of the Schneiderian membrane during sinus floor elevation on the stability of the augmented area and its influence on osseointegration after implant insertion. Therefore, we could re-assess a patient cohort of originally 34 patients with 41 perforations and compare their outcome with a control grou...

Results : Impact of surgical management in cases o...

The initial bone level differed significantly (p = 0.05) between both groups with a median value of 5.69 mm in the study group and 3.87 mm in the control group (Fig. 4). A Mann-Whitney-U-Wilcoxon test revealed no significant difference between bone level postoperatively (p = 0.7851; median value control group 17.40 mm; median value perforation group 16.91 mm), in follow-up (p = 0....

Results : Impact of surgical management in cases o...

The mean control interval was 2.69 (± 2.03) years. At the time of the follow-up examination, the average age was 59.95 (± 11.82) years. In the remaining collective of 31 patients (96.97%; 12 males (37.54%) and 19 females (59.43%)), a total of 92 implants were inserted. The overview of perforation treatment in the study group is given in Fig. 2, and Fig. 3 depicts the reasons for perforati...

Methods : Impact of surgical management in cases o...

One independent oral and maxillofacial surgeon performed the clinical follow-up examinations according to a standardized protocol. A peri-implant probing including probing pocket depths and recessions on four sites of each implant was assessed as was bleeding on probing (BOP) to determine the status of oral hygiene objectively. Signs of gingivitis and pus suppuration were also recorded. The criter...

Methods : Impact of surgical management in cases o...

Three different oral and maxillofacial surgeons performed the sinus lift procedure with an external approach according to comparable surgical standards and inserted all implants examined in this study in a submerged protocol with uncovering after 3–4 months due to the manufacturer’s surgical recommendations. Specifically, a total of 35 external sinus floor elevations were performed through a ...

Methods : Impact of surgical management in cases o...

In accordance with the WMA Declaration of Helsinki—Ethical Principles for Medical Research Involving Human Subjects, approval was given by the local ethics committee of the Christian-Albrechts-University in Kiel (AZ 132/10). All patients gave informed written consent to participate. A total of 201 sinus floor elevation procedures, which were performed from 2005 to 2006 in the Department of Oral...

Background : Impact of surgical management in case...

Sinus floor elevation procedures have become a predictable and successful treatment, performed when the maxillary alveolar ridge is atrophied and the bone height is not sufficient for primary implantation. If the postoperative course remains uneventful, the outcome is highly predictable [1,2,3]. However, complications may have a negative impact on the overall treatment success. As a common complic...

Abstract : Impact of surgical management in cases ...

Until now, sinus floor elevation represents the gold standard procedure in the atrophic maxilla in order to facilitate dental implant insertion. Although the procedure remains highly predictive, the perforation of the Schneiderian membrane might compromise the stability of the augmented bone and implant success due to chronic sinus infection. The aim of this retrospective cohort study was to show ...

Fig. 2. a Radiographic image of a 3.5-mm-wide by 7...

Fig. 2. a Radiographic image of a 3.5-mm-wide by 7-mm-length dental implant at the time of its placement at the mandibular left second premolar in a 63-year-old Caucasian female. b Radiographic image of a three-unit fixed partial denture upon its initial placement. The dental implant is the anterior abutment with the prosthesis screw retained to it. The distal abutment is the mandibular left sec...

Fig. 1. a Initial radiograph exposed at abutment i...

Fig. 1. a Initial radiograph exposed at abutment installation on a 5-mm-wide by 7-mm-length dental implant used to help support a removable partial denture for a 71-year-old Caucasian male. b Radiograph of the area taken at 82 months demonstrates good bone stability. c Clinical image of the area 82 months later. Soft tissue remains healthy. The two teeth anterior are in the process of receivin...

Table 5 Resonance frequency analysis : A 1–7 ye...

Time ISQ n Implant insertion 73.6 ± 8.1 86 1–4 weeks ...

Table 4 Implant survival, life table analysis : A ...

Interval Implants Failed Not followed CSR (%) Insertion to 1 year ...

Table 3 Specification of failed implants (three im...

Sex Age Smoker Risk factors Position Implant diameter ...

Table 2 Implant and site-related specifications : ...

  Number Percent Jaw Maxilla 60 69.8 Mandible ...

Table 1 Patient demographics : A 1–7 year retro...

  Number Percent Age (years) 20–29 1 1.3 30–39 ...

About this article : A 1–7 year retrospective f...

Rosen, P.S., Sahlin, H., Seemann, R. et al. A 1–7 year retrospective follow-up on consecutively placed 7-mm-long dental implants with an electrowetted surface. Int J Implant Dent 4, 24 (2018). https://doi.org/10.1186/s40729-018-0136-4 Download citation Received: 08 January 2018 Accepted: 21 May 2018 Published: 23 August 2018 DOI: https://doi.org/10.1186/s40729-018-0136...

Rights and permissions : A 1–7 year retrospecti...

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were m...

Ethics declarations : A 1–7 year retrospective ...

The study was performed in compliance with the Declaration of Helsinki. Data collection was performed in such a manner that subjects could not be identified, and therefore, it was exempt from IRB review according to Federal Regulation 45 CFR 46.101(b). All participants consented to publish their information details through the clinic’s standard patient consent procedure. Also, all images appear...

Author information : A 1–7 year retrospective f...

Clinical Professor of Periodontics, Baltimore College of Dental Surgery, University of Maryland Dental School, Baltimore, MD, USA Paul S. Rosen Private Practice limited to Periodontics and Dental Implants, 907 Floral Vale Boulevard, Yardley, PA, 19067, USA Paul S. Rosen Neoss Ltd, Gothenburg, Sweden Herman Sahlin University Clinic of Craniofacial, Maxillofacial and Oral Surgery, Vienna, Aust...

Availability of data and materials : A 1–7 year...

Due to the ethical and legal responsibility to respect participants’ rights to privacy and to protect their identity, the clinical dataset is not made publicly available.

References : A 1–7 year retrospective follow-up...

Srinivasan M, Vazquez L, Rieder P, Moraguez O, Bernard JP, Belser UC. Survival rates of short (6 mm) micro-rough surface implants: a review of literature and meta-analysis. Clin Oral Implants Res. 2014;25(5):539–45. Chrcanovic BR, Albrektsson T, Wennerberg A. Diabetes and oral implant failure: a systematic review. J Dent Res. 2014;93(9):859–67. Giro G, Chambrone L, Goldstein A, Rodrigues JA,...

References : A 1–7 year retrospective follow-up...

Jemt T, Olsson M, Franke SV. Incidence of first implant failure: a retroprospective study of 27 years of implant operations at one specialist clinic. Clin Implant Dent Relat Res. 2015;17(Suppl 2):e501–10. Pommer B, Frantal S, Willer J, Posch M, Watzek G, Tepper G. Impact of dental implant length on early failure rates: a meta-analysis of observational studies. J Clin Periodontol. 2011;38(9):856...

Abbreviations : A 1–7 year retrospective follow...

Cumulative survival rate Implant stability quotient Insertion torque Odds ratio Resonance frequency analysis Relative risk

Conclusion : A 1–7 year retrospective follow-up...

The current retrospective consecutive case series study provides preliminary data that treatment with 7-mm-length short implants with a hydrophilic electrowetted surface is a reasonable approach in sites with limited vertical bone dimension. It adds to the body of evidence supporting short implant use for compromised sites. The success seen might be attributed to the larger implant diameters that ...

Discussion : A 1–7 year retrospective follow-up...

Thirty-six percent of the implants in the study were placed in extraction sockets. Provided that sufficient initial implant stability is achieved, there should be no additional risk factors compared to implants in healed sites. Studies have shown no difference in marginal bone remodeling between immediately placed and delayed implants [15]. The biggest limitation of the current study is its very ...

Discussion : A 1–7 year retrospective follow-up...

A wide distribution in implant insertion torque (10–50 Ncm) was seen in the study. This reflects the variety of clinical situations in which the implants were placed. Assessments were made by using both the RFA value and the insertion torque as to first whether an implant should have been left to heal in the first place and if so, how this would be best accomplished, i.e., through its submergen...

Discussion : A 1–7 year retrospective follow-up...

This retrospective study is the first to look at short dental implants with a hydrophilic electrowetted surface. The survival data suggest that this treatment is a viable option to care. In a systematic review that identified 13 studies on implants shorter than 10 mm, the CSR from the individual studies ranged from 80 to 100% with a combined CSR of 98.3% after 5 years, 94.8% after 6 years, and ...

Results : A 1–7 year retrospective follow-up on...

The chart review identified 86 placed implants in 75 patients. Table 1 summarizes the patient demographics of the 75 patients. Patients ranged in age from 29 to 88 years with a mean of 61.0 ± 12.5 years. Twenty-seven of the patients were males and 48 were females. Table 2 summarizes the implant and site-related information of the 86 placed implants. Mean insertion torque was 30.1 ± 7...

Methods : A 1–7 year retrospective follow-up on...

Baseline parameters, both patient- and implant-related, as well as follow-up parameters (implant survival, follow-up time, and resonance frequency analysis) were collected from a review of the patient records. The main study parameters (principal outcome parameters) were defined to be implant loss and follow-up time. The cumulative survival rate was estimated. The influence of several factors on ...

Methods : A 1–7 year retrospective follow-up on...

A retrospective study on short 7 mm hydrophilic implants from a single center was conducted in a private practice limited to periodontics and surgical dental implant placements from one of the authors, PSR (Yardley, Pennsylvania, USA). An exhaustive chart review identified 75 patients for analysis that were treated with 86 short (7 mm) implants during a 5-year period (September 1, 2009, to Novem...

Background : A 1–7 year retrospective follow-up...

The aim of this retrospective consecutive case series study was to investigate implant survival rate and analyze possible factors affecting the survival of short implants placed in one surgical practice focused on implantology and periodontology in a temporal cohort.

Background : A 1–7 year retrospective follow-up...

In the past decades, the osseointegration rate of dental implants has dramatically increased, particularly in sites of softer dental bone, which may be attributed to the introduction of moderately roughened surfaces [1, 2]. Moreover, because of this increase in success, clinicians have attempted to push the envelope and place implants into sites that may provide a greater challenge as they wish to...

Abstract : A 1–7 year retrospective follow-up o...

This retrospective consecutive case series study was performed to determinate the survival rate and implant stability of short (7 mm length) dental implants with an electrowetted hydrophilic surface that were in function from 1 to 7 years. A retrospective chart review identified and evaluated 86 consecutively placed 7-mm-long dental implants (ProActive, Neoss Ltd., Harrogate, England) in 75 pat...

Table 7 Cox regression analyses for cumulative sur...

  Hazard ratio 95% confidence interval p value Gender (male) 1.82 0.946~3.487 ...

Table 6 Cox regression analyses for cumulative inc...

  Hazard ratio 95% confidence interval p value Gender (male) 2.38 1.138~5.362 ...

Table 5 Cox regression analyses for implant surviv...

  Hazard ratio 95% confidence interval p value Gender (male) 1.99 0.538~8.201 ...

Table 4 Distribution of implants by length and loc...

Dia. (mm) Maxilla anterior Maxilla posterior Mandible anterior Mandible posterior Tot...

Table 3 Distribution of implants by diameter and l...

Dia. (mm) Maxilla anterior Maxilla posterior Mandible anterior Mandible posterior Tot...

Table 2 Distribution of implants in situ (n = 22...

Position 1 2 3 4 5 6 ...

Table 1 Age and gender distributions (n = 92)

Age/gender Male Female Total 20–29 3 ...

References: Retrospective cohort study of rough-su...

References Brånemark PI, Adell R, Breine U, Hansson BO, Lindström J, Ohlsson A. Intra-osseous anchorage of dental prostheses. I. Experimental studies. Scand J Plast Reconstr Surg. 1969;3:81–100. Buser D, Sennerby L, De Bruyn H. Modern implant dentistry based on osseointegration: 50 years of progress, current trends and open questions. Periodontol. 2017;73:7–...

Conclusions: Retrospective cohort study of rough-s...

Conclusions In conclusion, our analyses revealed a cumulative survival rate of 89.8% of TPS-surface implants with at least 25 years of functioning. The survival rate of maxillary positioned implants was significantly lower than that of mandibulary positioned implants. The patient gender, implant location, and width of keratinized mucosa affected the rate of peri-implantitis, resulting in l...

Results: Retrospective cohort study of rough-surfa...

A total of 48 implants were eventually accompanied by a peri-implant infection: the cumulative incidence of peri-implantitis was 9.5, 15.3, 21.0, and 27.9% at 5, 10, 15, and 25 years after the prosthesis delivery, respectively (Fig. 3). After stepwise backward selection, the gender, implant type, and width of keratinized mucosa showed the significant difference in the cumulative survival rate (T...

Results: Retrospective cohort study of rough-surfa...

Results Patient cohort A total of 92 patients (38 men, 54 women; mean age 54.3 years, range 20–78) received implant-supported prostheses (at the seven private practices) between 1984 and 1990. The distribution of patients by age and gender is presented in Table 1. Fifty-seven patients (140 implants) were considered dropouts due to the fact that no data were obtained at the endpoint, bu...

Methods: Retrospective cohort study of rough-surfa...

Methods Study design This retrospective observational study was approved by the ethical committee of Nagasaki University (No. 1512). The cases of all of the patients who underwent dental implant treatment with a TPS-surfaced solid-screw implant and whose prosthesis was set in the years 1984–1990 at seven private practices were analyzed. All inserted implants were either a TPS-type (TPS-t...

Background: Retrospective cohort study of rough-su...

Background Dental implant treatment based on the concept of osseointegration [1] is now a widely accepted restorative treatment for fully and partially edentulous patients. In the earliest days of the use of osseointegrated implants, two different topographies were applied on the implant surfaces: a machined minimally rough titanium surface such as the Brånemark system and a rough micropor...

Retrospective cohort study of rough-surface titani...

Abstract Background The longitudinal clinical outcomes over decades contribute to know potential factors leading to implant failure or complications and help in the decision of treatment alternatives. Methods The cases of all patients who received dental implants treated with titanium plasma-sprayed surfaces and whose prostheses were set in the period 1984–1990 at seven...

Figure 4. Patient satisfaction throughout the stud...

  Figure 4. Patient satisfaction throughout the study

Figure 3. Bone level changes from loading to 5-yea...

  Figure 3. Bone level changes from loading to 5-year follow up

Figure 2. Clinical parameters and soft tissue para...

  Figure 2. Clinical parameters and soft tissue parameters. a Modified plaque index. Error bars indicate standard deviation. * = p ≤ 0.05, *** = p ≤ 0.001. b Sulcus bleeding index. Error bars indicate standard deviation. * = p ≤ 0.05, *** = p ≤ 0.001. c Pocket probing depth. The asterisk represents statistically significant differences (* = p ≤ 0.05) observed between ...

Figure 1. Study flow diagram

Figure 1. Study flow diagram: follow up status and reasons for not completing the study; six-month, 2-year and 4-year follow up was optional Figure 1. Study flow diagram: follow up status and reasons for not completing the study; six-month, 2-year and 4-year follow up was optional

Table 4 Life table analysis showing the cumulative...

Table 4 Life table analysis showing the cumulative success rate according to Albrektsson et al. and Buser et al.   Interval(months) Implants in interval According to Albrektsson et al. According to Buser et al. Implants withdrawn during interval Failures during interval Cumulative success rate (%) Implants withdrawn during interval Failures during interval Cumulativ...

Table 3 Patient demographics with respect to impla...

Table 3 Patient demographics with respect to implants     Overall Subgroup* Platform switching Platform matching Total Implants, n 285 203* 68* Number of implants placed per patient, n (%) 1 125 (63.8) 97 (67.4) 20 (48.8) 2 56 (28.6) 37 (25.7) 16 (39.0) 3 12 (6.1) 7 (4.9) 5 (12.2) 4 3 (1.5) 3 (2.1) 0 (0.0) Implant...

Table 2 Patient demographics

Table 2 Patient demographics   Overall Subgroup* Platform switching Platform matching Patients, n (%) 196 (100) 144 41 Sex, n (%)  Male 87 (44.4) 62 (43.1) 19 (46.3)  Female 109 (55.6) 82 (56.9) 22 (53.7) Age, years  Mean (SD) 51.5 (14.2) 53.1 (14.4) 47.4 (12.9)   Range 17.9–82.1 17.9–82.1 19.3–78.5 Pr...

Table 1 Table of study centers

Investigator* City/country Number of patients included Number of implants included Dr. Helfried Hulla Strass in Steiermark, Austria 10 15 Prof. DDr. Gerald Krennmair Marchtrenk, Austria 10 20 Dr. S. Marcus Beschnidt (PI) Baden-Baden, Germany 8 12 Dr. Karl-Ludwig Ackermann Filderstadt, Germany 14 18 Dr. Thomas Barth Leipzig, Germany 15 28 Dr...

Abbreviations & References: Implant success and su...

Abbreviations ASA: American Society of Anesthesiologists MPI: Modified Plaque Index PPD: Pocket probing depth RCT: Randomized controlled clinical trial SBI: Sulcus Bleeding Index SD: Standard deviation SLA: Sand-blasted, large grit, acid-etched References Hjalmarsson L, Gheisarifar M, Jemt T. A systematic review of survival of s...

Discussion and conclusions: Implant success and su...

The appearance of poorer oral hygiene later in the study also appears to correspond with the drop in follow-up attendance, which again supports the importance of follow-up. All other complications could be resolved and were not persisting. Furthermore, patients selected for inclusion in this study were optimal candidates for dental implants. Though the inclusion criteria predestinate the patient s...

Discussion and conclusions: Implant success and su...

At 5-year follow-up, the overall SBI was 0.32 ± 0.49, reflective of no bleeding given that 0 equals no bleeding and 1 equals isolated bleeding spots visible [27]. The PPD initially decreased within the first 6 months from which point it significantly increased to 2.34 ± 1.18 mm at 5-year follow-up. Nevertheless, the measured mean PPD still reflects the norm for conventionally placed i...

Discussion and conclusions: Implant success and su...

On the one hand, the variety of bone level changes in this study may be explained by different vertical soft tissue thicknesses, but cannot be validated due to these missing data. On the other hand, there are multiple confounding factors influencing the change in bone level, such as the size of the platform (mismatch), occlusal loading, and the microgap. Additional to the standard success criteria...

Discussion and conclusions: Implant success and su...

Over the 5-year study period, we report

Discussion and conclusions: Implant success and su...

At 3-year follow-up, bone loss was noted in one patient (reclassified as peri-implantitis at the 4-year follow-up) and an important bone loss (due to poor oral hygiene and bruxism; two implants) in a patient with psychosocial issues who could not be treated during the study. Such a patient would not have been included in an RCT. Consequently, three implants were lost based on the bone loss criter...

Discussion and conclusions: Implant success and su...

Discussion and conclusions This large, multicenter study provides real-life long-term data on 285 implants placed in 196 patients. The results show that the placement of CAMLOG SCREW-LINE implants with platform-matching or platform-switching abutments results in high survival and success in the long term. The overall success rate for implants was 97.1% at 5-year post-loading, and 97.4% and 96.2...

Results: Implant success and survival rates (3)

Jemt papilla score At loading, the Jemt papilla score was 1.93 ± 1.01, significantly increasing to 2.14 ± 0.95 at 5-year follow-up (p = 0.023) (Fig. 2d). For the platform-switching subgroup, a significant difference was observed between baseline and 5-year follow-up (p 

Results: Implant success and survival rates (2)

Implant survival The cumulative survival rate was 100% at 1-year follow-up, 99.6% at 3-year follow-up, and 98.6% at 5-year follow-up. All three late failures were in the platform-switching subgroup. Clinical parameters/soft tissue parameters Plaque index Mean modified plaque indices were very low at below 0.5 for all but one measurement throughout the course of the study (Fig. 2a). At loading...

Results: Implant success and survival rates (1)

Results Patient demographics  In total, 196 patients from 17 centers met the inclusion criteria for this study and were included in the per-protocol analysis. In total, 285 implants were placed (Table 1). At the 5-year follow-up, data were available for the 137 patients who completed the study (Fig. 1). Patient demographic data is presented in Tables 2 and 3. Implant success Implant success...

Methods: Implant success and survival rates (4)

The primary stability of the implant was assessed during surgery. Implant success and survival were evaluated in the group of implants restored with abutments [5, 29] at both placements of the provisional and definitive prostheses and at each follow-up visit thereafter. Implants were deemed successful in accordance with the criteria for implant success laid down by Albrektsson et al. [30]. Implan...

Methods: Implant success and survival rates (3)

  Assessments Throughout the study, only radiographs consistent with standard implant procedures were taken. Bone level changes were assessed based on available and evaluable standardized periapical radiographs with a film-holder using parallel-technique or panoramic radiographs (depending on the standard in the study centers). Baseline was defined as the time of the first prosthetic installati...

Methods: Implant success and survival rates (2)

The treatment indications were single or multiple tooth replacement in the maxilla or mandible without the use of simultaneous augmentation or membrane, of which the implants were to be restored with either fixed single crown or fixed partial denture restorations. Treatment procedure Patients were to be treated according to standard practice for implant procedures applicable in the countries par...

Methods: Implant success and survival rates (1)

Methods Study design This was a prospective multicenter non- interventional study to assess implant success and survival rates in daily dental practices using the CAMLOG SCREW-LINE implants (CAMLOG Biotechnologies AG, Basel, Switzerland) used with or without platform-switching abutments. Patients were enrolled over a period of 2 years from October 2008 to September 2010 from 17 sites across f...

Background: Implant success and survival rates (2)

In the present study, CAMLOG SCREW-LINE implants with the Promote plus surface (sandblasted and acid-etched surface) were used. These implants in combination with platform-matching abutments have been shown to have high long-term success rates ranging from 97.8 to 100% at 5-year to 10-year follow-up [9,10,11,12,13]. They can be restored with either platform-matching or platform-switching abutments...

Background: Implant success and survival rates (1)

Background   Success and survival rates of endosseous implants are well-documented in a number of controlled clinical trials and systematic reviews [1,2,3]. Generally, controlled trials evaluate endosseous implants in specific clinical situations; thus, the patient population is subjected to rigorous inclusion criteria and follow-up. Accordingly, controlled clinical trials do not reflect th...

Implant success and survival rates in daily dental...

Implant success and survival rates in daily dental practice: 5-year results of a non-interventional study using CAMLOG SCREW-LINE implants with or without platform-switching abutments Abstract Background The performance of dental implants in controlled clinical studies is often investigated in homogenous populations. Observational studies are necessary to evaluate the outcome of implant resto...

Table 4 Implant survival in autogenous bone grafts...

  RDX No RDX Author Year of publication No. of implants placed into autogenous bone grafts with RDX (and failures) Overall implant survival of implants placed into autogenous bone grafts with RDX No. of patients who had implants placed into autogenous bone grafts with RDX (and failures) Patient based implant survival of implant placed into autogenous bone grafts with RDX No. of...

Table 3 Implant survival in autogenous bone grafts...

  Non-vascularised bone graft Vascularised bone graft Author Year of publication No. of patients who had implants placed into non-vascularised autogenous bone grafts (and failures) Overall patient implant survival in non-vascularised autogenous bone grafts No. of implants placed into non-vascularised autogenous bone grafts (and failures) Overall implant survival in non-vasculari...

Table 2 Summary of implant survival and implant su...

  Implant survival Implant success Author Year of publication Donor site of autogenous bone graft Radiotherapy/chemotherapy to bone graft site Complications No. of patients who had implants placed into autogenous bone grafts (and failures) Overall patient implant survival in autogenous bone grafts No. of implants placed into autogenous bone grafts (and failures) Overall i...

Table 1 Study characteristics and MINORS scores

Author Year of publication Study design Outcome measure Criteria—survival Criteria—success Quality assessment using the MINORS assessment tool Head and neck cancer diagnosis Patients age range Follow-up period Implant site Implant system Implant placement protocol Prosthodontic rehabilitation Studies with an average follow-up of 3 years or greater Watzinger et...

Figure 1. Flow chart of study selection procedure

Figure 1. Flow chart of study selection procedure

References : Survival of dental implants placed

References Schoen PJ, Reintsema H, Raghoebar GM, Vissink A, Roodenburg JLN. The use of implant retained mandibular prostheses in the oral rehabilitation of head and neck cancer patients. A review and rationale for treatment planning. Oral Oncol. 2004;40:862–71. Müller F, Schädler M, Wahlmann U, Newton JP. The use of implant-supported prostheses in the functional and psychosocial rehabi...

Conclusion : Survival of dental implants placed

Conclusion Within the limitations of the current review, it can be concluded that implant survival in autogenous bone grafts in H&N oncology patients appears to be promising with implant survival being reported at over 80% in 16 of the 20 studies included with 11 of these reporting implant survival of over 90% in follow-up ranging from 3 months [28] to 15 years [5]. However, there i...

Discussion : Survival of dental implants placed (3...

A clear deficiency of many of the studies was the imprecise and inconsistent definitions of implant survival or implant success, as detailed in Table 1. In addition, in a number of studies, the terminology ‘implant success’ and ‘implant survival’ were used interchangeably within the narrative making comparison of the studies challenging and rendering statistical analysis of the surv...

Discussion : Survival of dental implants placed (2...

The implant placement protocol with regard to primary (immediate) or secondary (delayed) implant placement was also reviewed, and there is limited evidence from Fenlon et al. that implant failure is significantly worse in immediately placed implants in comparison with a delayed approach in free vascularized grafts. Implant success was shown to be lower than implant survival and was related ...

Discussion : Survival of dental implants placed (1...

Discussion Summary of evidence Dental implants are now perceived to be a vital part of the clinician’s armamentarium in the provision of oral and dental rehabilitation for patients with acquired deformity following management of their H&N cancer, and therefore, this systematic review is relevant to clinicians and stakeholders involved in the treatment and management of H&N cancer patient...

Results : Survival of dental implants placed (8)

Six of these studies (Schultes et al., Wang et al., Zou et al., Chiapasco et al., Chiapasco et al., Wu et al.) reported some of this lack of success to the peri-implant soft tissue which was most frequently the soft tissue component of a combined bone and soft tissue free flap (most commonly the external skin). Complications A variety of implant-based complications were documented. Complicatio...

Results : Survival of dental implants placed (7)

Implant survival and Peri-implant soft tissue Only one study (Linsen et al. ) reported on the effect of the peri-implant soft tissue and implant survival of implants placed into autogenous bone grafts. Linsen et al. reported a higher implant failure of implants placed into bone and soft tissue grafts in comparison to implants placed into a bone grafts with residual soft tissues. This difference...

Results : Survival of dental implants placed (6)

However, in two studies (Teoh et al., Burgess et al.), no statistical significance was found despite higher implant failure. Primary and secondary implant placement and implant survival Six studies clearly reported the use of both primary and secondary implant placement within their study (Fenlon et al., Ch’ng et al., Zou et al., Burgess et al., Watzinger et al., Wu et al.); however, only on...

Results : Survival of dental implants placed (5)

Two studies (Fenlon et al., Burgess et al. ) reported no significant effect on implant survival in varying graft donor sites; however, three studies (Hessling et al., Shaw et al., Chiapasco et al.) reported varying implant survival rates within different autogenous bone grafts but only one study (Hessling et al.) reported that implant loss was significant with this being for implants placed into...

Results : Survival of dental implants placed (4)

Autogenous bone graft type and implant survival Seventeen studies reported on the specific bone graft type (non-vascularised or vascularised) into which the implants were placed. In the remaining three studies (Buddula et al., Fierz et al., Yerit et al.), this distinction was not possible. Of these 17 studies, 8 studies reported on implant survival in non-vascularised bone grafts and 14 studie...

Results : Survival of dental implants placed (3)

The surgical and loading implant protocols were reported in 17 studies with no description given in 3 studies (Barrowman et al., Fierz et al., Hessling et al.). The implant placement protocols were diverse with variables including the use of surgical templates/guides, primary and/or secondary implant placement following autogenous bone grafting, and immediate and/or delayed implant loading; howe...

Results : Survival of dental implants placed (2)

These 20 studies were published over a range of 21 years (1996 to 2017) and provide cumulative data on 1905 implants placed into autogenous bone grafts in H&N cancer patients with both benign and malignant tumours being reported. The exact patient number for this intervention within some of the studies was unclear as a result of the studies reporting on implant rather than patient number or ther...

Results : Survival of dental implants placed (1)

Results Study selection Searches of EMBASE, the Cochrane Central Register of Controlled Trials, Science Direct and MEDLINE generated 619 articles. After duplicate articles were removed, 566 unique articles were remaining. After the review of the titles and abstracts, 151 articles were accepted for further consideration, and 415 were rejected. After the full text was attained and reviewed for t...

Methods : Survival of dental implants placed (3)

Data items Data was collected for implant survival, implant success, implant failure, implant complications, surgical implant placement protocol, implant system used, clinical follow-up, how the author defined success/survival, the type of autogenous bone graft, implant site, the prosthodontic rehabilitation and type of cancer, and the use of radiotherapy were documented where possible. Risk of ...

Methods : Survival of dental implants placed (2)

Information sources Four electronic databases were used to systematically search the available literature: (1) The National Library of Medicine (MEDLINE via PubMed), (2) EMBASE, (3) Cochrane Central Register of Controlled Trials and (4) Science Direct. The searches were limited to studies involving human subjects and publication dates from January 1980 to August 2017 that satisfied the inclusion ...

Methods : Survival of dental implants placed (1)

Methods Protocol The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) for describing and summarising the results of our review was used. A quality assessment of all selected full-text articles was performed using the Methodological Index for Non-Randomized Studies (MINORS) assessment tool to assess the risk of bias of the included studies. The MINORS scoring list co...

Introduction : Survival of dental implants placed

Introduction Rationale The use of implants to retain prostheses as part of oral and dental rehabilitation of head and neck (H&N) cancer patients is becoming an increasingly common treatment approach. A number of benefits advocating implant anchorage over conventionally secured prostheses have been proposed but importantly include a significant improvement in the reported quality of life (QoL) of...

Survival of dental implants placed in autogenous b...

Survival of dental implants placed in autogenous bone grafts and bone flaps in head and neck oncology patients: a systematic review   Abstract Using implants to retain prostheses as part of the oral rehabilitation of head and neck cancer patients is an increasingly common treatment modality, particularly in transported bone which is used to reconstruct defects following oncological surgical ...

Figure 4. Kaplan-Meier implant survival curves for...

Figure 4. Kaplan-Meier implant survival curves for bone and bone substitutes

Figure 3. Kaplan-Meier survival curves for membran...

  Figure 3. Kaplan-Meier survival curves for membrane types

Figure 2. Kaplan-Meier implant survival curves for...

  Figure 2. Kaplan-Meier implant survival curves for augmentation procedures

Figure 1. Kaplan-Meier survival curves for implant...

Figure 1. a Kaplan-Meier survival curves for implants with or without augmentation. Dashed line 95% confidence interval. b Kaplan-Meier survival curves for single crown implants overall and with or without augmentation. Dashed line 95% confidence interval

Table 5 Implants lost and in function up to 20.2 y...

Table 5 Implants lost and in function up to 20.2 years after implant insertion using different graft materials Graft material Implants (n) Min/max observation time (years) Lost implants % (n) Absolute survival rate % p value No graft material 4609 0.0/20.2 5.51 (254) 94.49   Geistlich Bio-Oss 2939 0.0/15.6 2.76 (81) 97.24 0.0004 Autogenous bone particles ...

Table 3 Explantations of implants inserted using d...

Table 3 Explantations of implants inserted using different augmentation procedures up to 20.2 years after implantation   Augmentation procedure Implants(n) Lost implants % (n) Absolute survival rate % p value No augmentation 4242 5.72 (243) 94.28   Lateral augmentation 3210 4.02 (129) 95.98 0.0010 External sinus lift one-step 1101 4.09 (45) 95.91 0.032...

Table 2 Implant loss in augmented and non-augmente...

Table 2 Implant loss in augmented and non-augmented sites up to 20.2 years after implant insertion Augmentation Implants (n) Lost implants % (n) Early implant loss % (n) Late implant loss % (n) Absolute survival rate % No augmentation 4242 5.73 (243) 0.38 (16) 5.35 (227) 94.27 With augmentation 5916 3.67 (217) 0.32 (19) 3.35 (198) 96.33 Total 10158 4.53 ...

Table 1 Distribution of implants according to the ...

Table 1 Distribution of implants according to the period of observation Year Number of implants Relative number of implants (%)

References : Retrospective analysis of 10,000 impl...

References Buser D, Martin W, Belser UC. Optimizing esthetics for implant restorations in the anterior maxilla: anatomic and surgical considerations. Int J Oral Maxillofac Implants. 2004;19(Suppl):43–61. Nkenke E, Neukam FW. Autogenous bone harvesting and grafting in advanced jaw resorption: morbidity, resorption and implant survival. Eur J Oral Implantol. 2014;7 Suppl 2:S203–17. von ...

Discussion : Retrospective analysis of 10,000 impl...

In addition, Buch et al. compared the different criteria proposed for implant success with regard to their clinical value. The authors demonstrated that the proposed criteria led to very different success rates 6 years after implant insertion (75–89%) and did not allow reliable comparison of the results with each other. Thus, during control visits in our practices, only prosthetic complica...

Discussion : Retrospective analysis of 10,000 impl...

The most often used graft material in our evaluation was Geistlich Bio-Oss (53.0%) followed by autogenous bone (32.5%). When compared to no graft, the use of both grafts resulted in significantly higher implant survival rates. In various studies, the bone substitute was found to promote bone regeneration and to allow for long-term stability of the augmented volume. A recent meta-analysis com...

Discussion : Retrospective analysis of 10,000 impl...

However, there are also a few clinical studies in which reduced survival rates for implants inserted in grafted areas were found. Differences in numbers of implants analysed, surgical techniques, indications and/or graft materials may account for these inconsistent results and further studies might be needed. In the retrospective analysis shown here, the comparison of different augmentation...

Discussion : Retrospective analysis of 10,000 impl...

Discussion The retrospective analysis presented here evaluates implants inserted in three different private practices with or without augmentation procedures. Treatments were performed according to the standard protocols applied in the private practices. More than 10,000 implants were inserted in various indications and were followed up to 20.2 years from the day of implant insertion. The o...

Results : Retrospective analysis of 10,000 implant...

When looking into the Kaplan-Meier implant survival curves of the augmentation procedures using the log-rank test, the highest implant survival was found for bone condensing followed by lateral augmentation, internal sinus lift, transplantation of bone blocks, bone splitting/spreading, titanium mesh, external sinus lift (one- and two-step) and finally, no augmentation. This sequence was statistica...

Results : Retrospective analysis of 10,000 implant...

Results Of the 10,158 implants, 58.2% (5916 implants) were inserted using an augmentation procedure. The minimal observation period until the last control visit or until explantation was 0 days (day of implantation); the maximum period was 20.2 years. Distribution of analysed implants according to the period of observation is shown in Table 1. A total of 4.53% (460 implants) of all implants...

Statistical evaluation : Retrospective analysis of...

The membranes applied included the native collagen membrane Geistlich Bio-Gide (Geistlich Pharma AG, Wolhusen, Switzerland) either alone or combined with one of the following membranes: Vicryl (Johnson & Johnson Medical GmbH, Norderstedt, Germany), Biovin Membran (OT Medical, Bremen, Germany), Parasorb Vlies (Resorba, Nuremberg, Germany), Gore-Tex Resolut (W.L. Gore & Associates, F...

Methods : Retrospective analysis of 10,000 implant...

The membranes applied included the native collagen membrane Geistlich Bio-Gide (Geistlich Pharma AG, Wolhusen, Switzerland) either alone or combined with one of the following membranes: Vicryl (Johnson & Johnson Medical GmbH, Norderstedt, Germany), Biovin Membran (OT Medical, Bremen, Germany), Parasorb Vlies (Resorba, Nuremberg, Germany), Gore-Tex Resolut (W.L. Gore & Associates, Flagstaff, USA), ...

Methods : Retrospective analysis of 10,000 implant...

Methods The retrospective analysis evaluates patients who underwent implant therapy with or without accompanying augmentation procedures between August 1991 and December 2011 in three private practices. Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) guidelines were followed. To investigate the effect of the different techniques applied on implant survival without ...

Background : Retrospective analysis of 10,000 impl...

Background Replacing missing teeth with dental implants is a routine treatment in many dental practices. In order to achieve adequate functional and aesthetic results, an optimal three-dimensional implant position has to be assured. Various materials are available to build up missing bone. While autogenous bone is usually regarded to be the gold standard, harvesting may be associated with morbi...

Retrospective analysis of 10,000 implants

Retrospective analysis of 10,000 implants from insertion up to 20 years—analysis of implantations using augmentative procedures Abstract Background A sufficient amount of bone is essential to ensure long-term stability of dental implants. To support the bone regeneration process, different techniques and materials are available. It has been questioned whether these techniques and materials...

Table 2 Risk of bias of the included studies

Author Year Study type Selection bias (homogeneity and confounders) Performance bias (fidelity to protocol) Attrition bias (loss of participants) Detection bias (reliable measures) Reporting bias (selective reporting or conflict interests) Summary assessment risk of bias Alsaadi 2007 Retrospective H U U L L L Aguilar-Salvatierra 2015 Prospective H L L L L...

Table 1 List of the included studies and its main ...

Table 1 List of the included studies and its main characteristics   Author Year Study type Diabetes type Control Diabetes therapy Glycemic control [HbA1c %] Duration of diabetes (years) Number of patients Number of implants Duration of study (years) Implant survival [%] Conclusion Alsaadi 2007 Retrospective Type II Non-diabetes n.d. n.d. n.d. 2004 (overall) 6...

Figure 1. Selection process of the included litera...

Figure 1. Selection process of the included literature

References : Dental implants and diabetes mellitus...

References Moraschini V, Poubel LA, Ferreira VF, Barboza Edos S. Evaluation of survival and success rates of dental implants reported in longitudinal studies with a follow-up period of at least 10 years: a systematic review. Int J Oral Maxillofac Surg. 2015;44(3):377–88. Khader YS, Dauod AS, El-Qaderi SS, Alkafajei A, Batayha WQ. Periodontal status of diabetics compared with nondiabetics...

Conclusion : Dental implants and diabetes mellitus...

  Conclusions The literature included to this review is very heterogeneous concerning the investigated objects, methods, and conclusions. Diabetes is a group of metabolic diseases in which there are high blood sugar levels over a prolonged period. When looking at the complications and side effects resulting from diabetes, it is important to know which type of diabetes the pati...

Results : Dental implants and diabetes mellitus—...

While four studies conclude better implant survival and less peri-implant complications in the well-controlled group, the three others see no difference in implant success even in the poorly controlled patients. The study of Khandelwal treated exclusively patients with poor glycemic control (HbA1c 7.5–11.4 %) and had 98 % implant survival, after 4 months; therefore, he concluded that impla...

Results : Dental implants and diabetes mellitus—...

  Diabetes and bone augmentation We identified two prospective studies that evaluated “advanced” implant surgery covering sinus lift procedure and guided bone regeneration. The study of Erdogan consists of type II diabetics moderately and well-controlled (HbA1c 6–7.5 %) with a mean duration of disease of 7.5 years and a healthy control group. Augmentation of the maxilla was perform...

Results : Dental implants and diabetes mellitus—...

 The bleeding on probing is more often in the poorly controlled population, but the probing depth is not increased. Diabetes and implant survival Implant survival is an easily defined and measured endpoint for dental implant therapy. Nearly every study reports its implant survival rate. Our literature search identified 18 publications with these data. We divided them into two groups: the ...

Results : Dental implants and diabetes mellitus—...

The results in the prospective study of Gomez-Moreno show that elevated HbA1c causes more bone resorption after 3 years, but this effect is not significant. We identified two prospective studies investigating the influence of type II diabetes on osseointegration. They are published by the same author but are independent studies from different years. In both studies, the patients included...

Results : Dental implants and diabetes mellitus—...

Results Study selection There are no guidelines existing to the topic of dental implants and diabetes mellitus. A total of 327 potentially relevant titles and abstracts were found by the electronic search and additional evaluation of reference lists. During the first screening, 230 publications were excluded based on the title and keywords. Additionally, 24 titles were excluded based on abstract...

Materials & methods : Dental implants and diabetes...

Materials and methods The substructure of the systematic review is based on the PRISMA statement. The focused question according to the PICO schema is: “Do diabetic patients with dental implants have a higher complication rate in comparison to healthy controls?” Search strategies The systematic literature search was performed by an independent scientist (Burkhard Kunzendorf). The following ...

Review : Dental implants and diabetes mellitus—a...

Review Introduction Today, dental implants are one of the restorative methods to replace missing teeth. Improvements in implant design, surface characteristics, and surgical protocols made implants a secure and highly predictable procedure with a mean survival rate of 94.6 % and a mean success rate of 89.7 % after more than 10 years. Implant survival is initially dependent on successful osseoi...

Dental implants and diabetes mellitus—a systemat...

Abstract Dental implant surgery has developed to a widely used procedure for dental rehabilitation and is a secure and predictable procedure. Local and systemic risk factors can result in higher failure rates. Diabetes mellitus is a chronic disease that goes in with hyperglycemia and causes multifarious side effects. Diabetes as a relative contraindication for implant surgery is controversially...

Table 2 Outcome success criteria

Implant success Clinically immobile when tested manually and/or with RFA (minimum ISQ = 65) Absence of peri-implant radiolucency present on an undistorted radiograph Absence of unresolved pain, discomfort, infection or neuropathy, or peri-implant soft tissue complications attributable to the implant Implant placement that does not preclude delivery of a prosthetic crown w...

Figure 3. Mean bone loss at 6 months and 1 year

Figure 3. Mean bone loss at 6 months and 1 year. Mean bone loss distribution charts at 6 months and 1 year present no statistically significant difference. p value at 6 months was 0.2981 and at 1 year 0.6613 Figure 3. Mean bone loss at 6 months and 1 year. Mean bone loss distribution charts at 6 months and 1 year present no statistically significant difference. p value at 6 month...

Figure 2. ISQ values at placement, 6 weeks, 6 mont...

  Figure 2. ISQ values at placement, 6 weeks, 6 months, and 1 year. Mean and standard deviation of ISQ values taken at placement, 6 weeks, 6 months, and 1 year is presented. No statistical significant difference was determined between ISQ values at all time points. (p 

Table 1 Patient selection criteria

Inclusion Male or female At least 18 years old Healthy enough to undergo routine implant surgery and subsequent dental treatment Partially edentulous requiring single dental implants in the maxilla Adequate volume of native or grafted bone to accommodate dental implants at least 8 mm long No active infections Physically, emotionally, and financially able to u...

Figure 1. Implant design

  Figure 1. Implant design. The OSPTX and OSP implants are manufactured from high-grade commercially pure titanium with surface roughness produced via a fluoride treatment process. The OSP implant is a screw-shaped self-tapping implant. The diameter used in this study was 4.0 mm. The implant length used in this study was 8 mm. The OSPTX implant has the same features as the OSP except the apex ...

Discussion : Comparative evaluation of the stabili...

Discussion Augmentation of the maxillary sinus prior to dental implant placement is routinely performed in order to help patients restore their maxillary posterior dentition. Unfortunately, not all patients are candidates for this procedure due to either health, personal, or financial concerns. An alternative treatment without the need for a sinus elevation procedure is the use of a shorter...

Results : Comparative evaluation of the stability ...

Results Overall implant survival rate was 93.3%. Two implants failed, one implant in group A (OSPTXSoft) and one in group B (OSPTXStd). Both implant failures occurred at the time of uncovery (at 6 weeks) and prior to loading of the implants and were attributed to lack of integration. With the exception of these two failed implants, there was 100% success for all remaining implants using the par...

Methods : Comparative evaluation of the stability ...

Methods Following proper approval by the LSUHSC Institution Review Board (LSUNO IRB#7438), 27 (30 implant sites) systemically healthy patients at least 18 years old were enrolled in the study and randomly divided into three groups as follows (inclusion and exclusion criteria are described in detail in Table 1): Group A received 10 OSPTX implants using the soft bone surgical protocol (OSPT...

Background : Comparative evaluation of the stabili...

To avoid invasive sinus augmentation procedures, implants have been designed in shorter lengths such as 8 mm. To further enhance short implant primary stability, a tapered design has been developed which has been proven to provide greater initial stability. Implant stability can be evaluated by different measures such as torque at the time of implant placement, resistance to reverse torque, and re...

Background : Comparative evaluation of the stabili...

Background Dental implants are now a widely accepted treatment option for the replacement of missing teeth. The therapeutic goal of dental implants is to support restorations that replace single or multiple missing teeth so as to provide patient comfort, function, and esthetics as well as assist in the ongoing maintenance of remaining intraoral and perioral structures. However, anatomic limitat...

Comparative evaluation of the stability of two dif...

Abstract Background The purpose of this study was to compare a parallel wall design implant to a tapered apex design implant when placed in the posterior maxilla using two different surgical protocols. Methods Twenty-seven patients (30 implants) were divided into three groups. All implants were 4 mm wide in diameter and 8 mm long. Group A received 10 tapered implants (OSPTX) (Astra Tech O...

Results : Dental implants and diabetes mellitus (5...

While four studies conclude better implant survival and less peri-implant complications in the well-controlled group, the three others see no difference in implant success even in the poorly controlled patients. The study of Khandelwal treated exclusively patients with poor glycemic control (HbA1c 7.5–11.4 %) and had 98 % implant survival, after 4 months; therefore, he concluded that implant the...

Results : Dental implants and diabetes mellitus (4...

  Diabetes and bone augmentation We identified two prospective studies that evaluated “advanced” implant surgery covering sinus lift procedure and guided bone regeneration. The study of Erdogan consists of type II diabetics moderately and well-controlled (HbA1c 6–7.5 %) with a mean duration of disease of 7.5 years and a healthy control group. Augmentation of the maxilla was performed by g...

Results : Dental implants and diabetes mellitus (3...

The bleeding on probing is more often in the poorly controlled population, but the probing depth is not increased. Diabetes and implant survival Implant survival is an easily defined and measured endpoint for dental implant therapy. Nearly every study reports its implant survival rate. Our literature search identified 18 publications with these data. We divided them into two groups: the first on...

Results : Dental implants and diabetes mellitus (2...

We identified two prospective studies investigating the influence of type II diabetes on osseointegration. They are published by the same author but are independent studies from different years. In both studies, the patients included were stratified by HbA1c levels as well-controlled (HbA1c 6.1–8 %), moderately controlled (HbA1c 8.1–10 %), and poorly controlled (HbA1c ≥10 %). The healthy...

Materials & methods : Dental implants and diabetes...

  Materials and methods The substructure of the systematic review is based on the PRISMA statement. The focused question according to the PICO schema is: “Do diabetic patients with dental implants have a higher complication rate in comparison to healthy controls?” Search strategies The systematic literature search was performed by an independent scientist (Burkhard Kunzendorf). The follow...

Conclusions : Dental implants and diabetes mellitu...

Conclusions The literature included to this review is very heterogeneous concerning the investigated objects, methods, and conclusions. Diabetes is a group of metabolic diseases in which there are high blood sugar levels over a prolonged period. When looking at the complications and side effects resulting from diabetes, it is important to know which type of diabetes the patient suffers from, if...

Results : Dental implants and diabetes mellitus (1...

Results Study selection There are no guidelines existing to the topic of dental implants and diabetes mellitus. A total of 327 potentially relevant titles and abstracts were found by the electronic search and additional evaluation of reference lists. During the first screening, 230 publications were excluded based on the title and keywords. Additionally, 24 titles were excluded based on abstract...

Introduction : Dental implants and diabetes mellit...

Introduction Today, dental implants are one of the restorative methods to replace missing teeth. Improvements in implant design, surface characteristics, and surgical protocols made implants a secure and highly predictable procedure with a mean survival rate of 94.6 % and a mean success rate of 89.7 % after more than 10 years. Implant survival is initially dependent on successful osseointegration...

Dental implants and diabetes mellitus—a systemat...

Abstract Dental implant surgery has developed to a widely used procedure for dental rehabilitation and is a secure and predictable procedure. Local and systemic risk factors can result in higher failure rates. Diabetes mellitus is a chronic disease that goes in with hyperglycemia and causes multifarious side effects. Diabetes as a relative contraindication for implant surgery is controversially...

Table 5. Differences between 5 years and 10 years ...

  At 5 years of function At 10 years of function   Patient level Implant level Patient level Implant level   n % n % n % n % Failure 15 3.16% 31 1.56% 24 5.05% 47 2.36%   Δ 5‐ to 10‐year failure       1.89%   0.80%   Peri‐implantitis 40 8.42% 61 3.19% 76 16% 186 9.72%   Δ 5‐ to 10‐year peri‐impla...

Figure 1. Peri‐implantitis over the study period...

Figure 1. Peri‐implantitis over the study period of 10 years at patient and implant level

Table 4. Survival and success rate at implant and ...

  Rehab. solution Patient level Implant level Survival rate Total 91.8% 96.1%   Fixed full‐arch bridge   90.5%   Implant‐supported overdenture   82.9%   Fixed partial denture   99.2%   Single‐tooth replacement   99.6% Peri‐implantitis rate Total 24.4% 12.9%   Fixed full‐arch bridge   14.3%   Implant‐...

Table 3. Life table analysis and cumulative surviv...

  Cumulative survival rate Cumulative success rate Time of functional loading (Years) Patient level Implant level Patient level Implant level 1 to 2 100% 100% 98.7% 99.5% 2 to 3 99.2% 99.7% 97.2% 98.8% 3 to 4 98.5% 99.4% 95.5% 97.9% 4 to 5 97.7% 98.9% 93.5% 96.7% 5 to 6 96.6% 98.4% 91.3% 95.3% 6 to 7 95.5% 97.9% 88.5% 93.6...

Table 2. Baseline information (1,991 implants)

Demographic variables Implants (%) Age ≥61 years 315 (15.8) ≤60 years 1,676 (84.2) Sex Male 904 (45.4) Female 1087 (54.6) Systemic disorders11 under medical supervision. With 173 (8.7) Without 1,818 (91.3) Smoking habits22 ≤20 cigarettes. With 146 (7.3) Without 1,845 (92.7)   Anatomic variables ...

Table 1. Patient and implant distribution among gr...

      Total   Patients Implants Clinical condition Men Women n % Rehab. solution n % n % Totally edentulous 40 50 90 19 Fixed full‐arch bridge 32 6.74 348 17.48           Implant‐supported overdenture 58 12.21 211 10.60 Partially edentulous 73 82 155 33 Fixed partial denture 155 32.63 732 36.77 Mono‐edentul...

Conclusion : A study on peri‐implant complicatio...

CONCLUSIONS Peri‐implantitis began to appear more frequently after the fifth year of functional loading, with a peak of incidence observed after the seventh year, especially between the seventh and eighth years. The incidence of peri‐implantitis increased when the data were analyzed from the fifth year to 10 years of function. Consequently, studies that consider a follow‐up period

Discussion : A study on peri‐implant complicatio...

The rate of peri‐implantitis observed in this study at 10 years, agreed with that described by Bragger et al. and Karoussis et al. in which peri‐implantitis occurred in 15.4% of the implants after a mean observation period of 10 years. Simonis et al. (2010) reported a prevalence of 16.9% of peri‐implantitis after an observation period of 10 to 16 years. The study of de Waal et al. desc...

Discussion : A study on peri‐implant complicatio...

During the interval between the sixth and seventh year of functional loading, a slightly higher rate of failures than that in the previous years was observed. The ratio between the rate of peri‐implant complications and the time of function was even more evident for peri‐implantitis, which showed a significant increase after the seventh year of functional loading, with a more evident increase...

Discussion : A study on peri‐implant complicatio...

The aim of this retrospective study was to assess the survival and success rates as well as the incidence of peri‐implantitis in patients with a history of periodontitis who followed an individual maintenance program and supportive periodontal and peri‐implant treatment (SPT), and with 1 to 10 years of implant functional loading. The results obtained in the present study show that peri‐impl...

Results : A study on peri‐implant complications ...

A total of 1,991 implants (475 patients) with 10 years of functional loading met the inclusion criteria and were included in this study: 90 patients were totally edentulous (559 implants), 155 patients were partially edentulous (732 implants), and 230 patients were mono‐edentulous (700 implants) (Tables 1 and 2). Table 3 shows the life table analysis and cumulative survival and success rate and...

Materials & methods : A study on peri‐implant co...

When a two‐stage technique was performed (i.e., sinus floor augmentation without implant insertion or staged‐approach GBR), a healing period of at least 6 months was observed before implant insertion. The implants were functionally loaded after 3 to 6 months of the implant placement. 2.3.3 Follow‐up After surgery, for a maintenance program, all patients followed an individual SPT. The ...

Materials & methods : A study on peri‐implant co...

Where a deficient posterior alveolar ridge and increased pneumatization of the maxillary sinus appeared, implants were inserted with simultaneous sinus floor augmentation (one‐step procedure) (osteotome technique, or lateral window technique) or after a previous sinus floor augmentation with bone grafting (two‐step procedure). Sites that exhibited localized horizontal bone...

Materials & methods : A study on peri‐implant co...

Successful tissue integration was examined using predefined criteria of success, as follows: Absence of persistent subjective complaints, such as pain, foreign body sensation and/or dysesthesia. Absence of implant mobility. Absence of continuous radiolucency around the implant. Implant prosthesis functional loading ≥1 year. Absence of exude or suppuration at acupressure o...

Materials & methods : A study on peri‐implant co...

2.2 Clinical parameters Periodical clinical examinations assessed before treatment and during follow‐up were recorded. Clinical parameters at baseline and after prosthesis positioning were used as a reference of development of peri‐implant disease. Based on the suggestion of Mombelli and Lang, and confirmed by the successive EWP consensus workshops published in 2008, 2011, and 2012, peri...

Materials & methods : A study on peri‐implant co...

This is a retrospective cohort study started from the analysis of clinical records of patients referring to private dental practices in central Italy (AP) treated between February 1998 and December 2002 by three different operators, and then included into a follow‐up program. We followed the Strengthening the Reporting of OBservational studies in Epidemiology (STROBE) guidelines for an accurate ...

Introduction : A study on peri‐implant complicat...

INTRODUCTION Implant‐prosthetic rehabilitation is a clinical procedure used to solve cases of partial or total edentulism. A functioning implant may be subject to plaque‐associated biological complications, such as mucositis and peri‐implantitis. Peri‐implant mucositis has been described as a reversible inflammatory lesion of the peri‐implant mucosa, whilst peri‐implantitis also desc...

A retrospective cohort study on peri‐implant com...

A retrospective cohort study on peri‐implant complications in implants up to 10 years of functional loading in periodontally compromised patients   Abstract Background Prevalence of peri‐implantitis is directly proportional to the time of functional loading. The aim of this retrospective study was to assess the survival and success rates as well as the incidence of peri‐implantitis ...

CONCLUSIONS : Comparison of 6‐mm and 11‐mm den...

CONCLUSIONS The present study found no significant difference between the clinical performance, including peri‐implant bone level changes and implant survival, of implants with 6 mm and 11 mm lengths, inserted in minimally resorbed edentulous spaces in the posterior maxilla and mandible, during a 5‐year follow‐up period. AUTHOR CONTRIBUTIONS Felix L. Guljé: Conceptualization (eq...

DISCUSSION : Comparison of 6‐mm and 11‐mm dent...

No analysis was performed if there was a possible difference in outcomes between the different centers. One reason is that the number of patients was not equally divided between the centers, making exploration for significant differences hardly reasonable. Next to this, randomization was performed using a block randomization sequence to provide equal distribution of subjects treate...

DISCUSSION : Comparison of 6‐mm and 11‐mm dent...

In the publication of Thoma et al. (2018), it was mentioned that there was 2% peri‐implantitis in the 6‐mm group and 0% in the longer‐implant group. Guljé et al. (2019) observed no peri‐implantitis in either groups. These numbers are low and very much alike the present study, although it should be noted that these studies used a slightly different definition of peri‐impl...

DISCUSSION : Comparison of 6‐mm and 11‐mm dent...

Thoma et al. (2018) reported a mean marginal bone level change of −0.12 ± 0.54 in the 6‐mm group and −0.18 ± 0.96 in the group with longer implants, without a significant difference between the groups. Guljé et al. (2019) reported a mean marginal bone level change of −0.12 ± 0.36 mm and −0.14 ± 0.63 mm in the 6‐mm group and the 11‐mm group, respectively, without ...

DISCUSSION : Comparison of 6‐mm and 11‐mm dent...

DISCUSSION Both 6‐mm short implants and 11‐mm conventional length implants performed well to support a fixed denture prosthesis in the posterior region of maxilla and mandible. A high implant survival rate, limited peri‐implant bone change, healthy peri‐implant soft tissues and limited biological and technical complications were noticed during the 5‐year functional period. There was a ...

Table 4. Number of technical complications at impl...

Table 4. Number of technical complications at implant level and patient level (between brackets) during 5 years of follow‐up   6‐mm group n implants = 97 (npatients = 46) 11‐mm group n implants = 86 (npatients = 39) Fracture of provisional restoration 3 (3) 3 (3) Fracture of definitive restoration 0 (0) 0 (0) Fracture of veneering 0 (0)...

Table 3. Clinical measures of implants

Table 3. Clinical measures of implants with plaque (in percentages), implants with bleeding on probing (in percentages) and mean (±SD) probing depth at implant level (in mm) at T0 (placement and loading of provisional restoration) and at T60 (5‐year follow‐up after loading of provisional restoration), and p‐value of differences between the groups at both evaluation periods     ...

Table 2. Mean value (in mm), standard deviation (S...

Table 2. Mean value (in mm), standard deviation (SD), and frequency distribution in (number and percentages) of marginal bone change between loading and 5 years in function   6‐mm group (n = 94) 11‐mm group (n = 80) mean bone change (SD) +0.01 (0.45) −0.12 (0.93) bone loss>−2.0 down 1 (1.1%) 6 (7.5%) bone loss>−2.0 up to and including −1.5 1 (1.1...

Table 1. Baseline characteristics

Table 1. Baseline characteristics of the 6‐mm group (49 participants with 108 implants) and the 11‐mm group (46 participants with 101 implants)   Group 6‐mm Group 11‐mm Mean age in years 55 ± 9, range 26–69 54 ± 10, range 34–70 Gender (number male/female) 21/28 27/19 Received a 2‐implant restoration 39 37 Received a 3‐implant restorati...

Results : Comparison of 6‐mm and 11‐mm dental ...

Forty‐nine patients were randomized to receive 6‐mm implants (test group) and 46 patients to receive 11‐mm implants (control group). The baseline characteristic of the patients is depicted in Table 1. A flow‐diagram from enrollment to 5‐year follow‐up can be found in Figure 3. A total of 209 implants were inserted: 108 implants in the 6‐mm group and 101 implants in the 11‐mm group....

Material & methods : Comparison of 6‐mm and 11...

2.4 Statistical analysis The number of patients required per group was calculated after assuming a two‐sided hypothesis to be rejected if the p‐value was below 5% and with a power of 80%. Primary outcome was mean peri‐implant bone level change, measured per implant, and a mean difference of 0.5 mm (standard deviation 0.8 mm) was chosen as a meaningful level of difference to be detected. ...

Material & methods : Comparison of 6‐mm and 11...

2.3 Outcome Evaluated parameters were: Implant failure (noted at any time throughout the 5‐year follow‐up period); Presence of plaque, probing depth (PPD) and bleeding on probing (BoP) was measured on four sites (mesial, distal, buccal, and lingual) around the implant (measured at time of provisional restoration, at time of definitive restoration and at annual follow‐up visits); Ra...

Material & methods : Comparison of 6‐mm and 11...

2.2 Surgical and prosthetic procedures To be included in the study, participants had to have an edentulous space during at least 4 months, spanning 2–3 teeth in the posterior maxilla or mandible and presence of natural teeth, partial prosthesis and/or implants in the opposite jaw in contact with the planned bridge. Patients also had to be able to receive an 11 mm long and 4 mm wide dental im...

Figure 2b. Five‐year follow‐up photograph of p...

Figure 2b. Five‐year follow‐up photograph of patient with two 11‐mm implants

Figure 2a. Five‐year follow‐up radiograph of p...

Figure 2a. Five‐year follow‐up radiograph of patient with two 11‐mm implants

Figure 2. Five‐year follow‐up of patient with ...

Figure 2. Five‐year follow‐up radiograph (a) and clinical photograph (b) of patient with two 11‐mm implants

Figure 1b. Five‐year follow‐up clinical photog...

Figure 1b. Five year follow‐up clinical photograph of patient with two 6 mm implants

Figure 1a: Five‐year follow‐up radiograph of p...

Figure 1a. Five‐year follow‐up radiograph of patient with two 6‐mm implants

Figure 1: patient with two 6‐mm implants

Figure 1. Five‐year follow‐up radiograph (a) and clinical photograph (b) of patient with two 6‐mm implants Figure 1. Five‐year follow‐up radiograph (a) and clinical photograph (b) of patient with two 6‐mm implants

Material & methods : Comparison of 6‐mm and 11...

2 MATERIAL AND METHODS 2.1 Study design The study outline has been described before in the 1‐year report of Guljé et al. (2013) and the 3‐year report of Zadeh et al. (2018). Inclusion/exclusion criteria, treatment and evaluation procedures are described in detail in these publications. The present report has been prepared in accordance with guidelines outlined in the CONSORT statement for...

Comparison of 6‐mm and 11‐mm dental implants i...

Comparison of 6‐mm and 11‐mm dental implants in the posterior region supporting fixed dental prostheses: 5‐year results of an open multicenter randomized controlled trial First published: 06 October 2020 | https://doi.org/10.1111/clr.13674 Abstract Objective The aim of this multicenter, randomized controlled trial was to compare the clinical and radiographic outcomes of 6‐mm or 11...