Sagheb, K., Schiegnitz, E., Moergel, M. et al. Clinical outcome of alveolar ridge augmentation with individualized CAD-CAM-produced titanium mesh.
Int J Implant Dent 3, 36 (2017). https://doi.org/10.1186/s40729-017-0097-z
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Received: 15 March 2017
Accepted: 13 July 2017
Published: 26 July 2017
DOI: https://doi.org/10.1186/s40729-017-0097-z
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...
Keyvan Sagheb reports personal fees and grants from Dentsply, Geistlich, and Nobel Biocare outside the submitted work. Eik Schiegnitz reports personal fees and grants from Septodont, Dentsply, Geistlich, and Straumann outside the submitted work. Maximilian Moergel reports grants from Camlog outside the submitted work. Christian Walter reports grants and personal fees from Straumann outside the sub...
Correspondence to
E. Schiegnitz.
K. Sagheb and E. Schiegnitz contributed equally to this work.
Department of Oral and Maxillofacial Surgery, Plastic Surgery, University Medical Centre of the Johannes Gutenberg-University Mainz, Mainz, Germany
K. Sagheb, E. Schiegnitz, M. Moergel, C. Walter, B. Al-Nawas & W. Wagner
Mediplus, Oral and Maxillofacial Surgery, Private Praxis, Mainz, Germany
C. Walter
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Ali S, Bakry SA, Abd-Elhakam H. Platelet-rich fibrin in maxillary sinus augmentation: a systematic review. The Journal of oral implantology. 2015;41(6):746–53. PubMed PMID: 25536095
Moraschini V, Barboza ES. Effect of autologous platelet concentrates for alveolar socket preservation: a systematic review. Int J Oral Maxillofac Surg. 2015;44(5):632–41. PubMed PMID: 25631334
Torres J, Tamimi F,...
Pieri F, Corinaldesi G, Fini M, Aldini NN, Giardino R, Marchetti C. Alveolar ridge augmentation with titanium mesh and a combination of autogenous bone and anorganic bovine bone: a 2-year prospective study. J Periodontol. 2008;79(11):2093–103. PubMed PMID: 18980518
Proussaefs P, Lozada J. Use of titanium mesh for staged localized alveolar ridge augmentation: clinical and histologic-histomorphom...
von Arx T, Kurt B. Implant placement and simultaneous peri-implant bone grafting using a micro titanium mesh for graft stabilization. Int J Periodontics Restorative Dent. 1998;18(2):117–27. PubMed PMID: 9663090
von Arx T, Kurt B. Implant placement and simultaneous ridge augmentation using autogenous bone and a micro titanium mesh: a prospective clinical study with 20 implants. Clin Oral Implant...
Moraschini V, Poubel LA, Ferreira VF, Barboza ES. 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. PubMed PMID: 25467739
Al-Nawas B, Kammerer PW, Morbach T, Ladwein C, Wegener J, Wagner W. Ten-year retrospective follow-up study of the TiO...
Within the limitations of this study, being retrospective and having no control group, the results show that individualized CAD-CAM-produced titanium meshes are a safe and predictable procedure for large vertical and horizontal ridge augmentations. The soft tissue covering remains one of the most critical steps using this technique. However, exposure of the mesh does not result in complete loss of...
The results showed that in all 21 augmented sites, a significant ridge augmentation was achieved, with a mean vertical augmentation of 6.5 ± 1.7 mm and a mean horizontal augmentation of 5.5 ± 1.9 mm. To our best knowledge, this is the first study investigating these parameters in individualized CAD-CAM-produced titanium meshes. For conventional titanium meshes, several studies were publish...
In our study, PRF membranes were additionally to collagen membranes used to cover the CAD-CAM mesh. The aim of this clinical approach was to improve and accelerate wound healing. The results with the low exposure rates and the sufficient augmentation heights indicated that these PRF membranes are a promising technique. However, due to low case number in the control group without a PRF membrane, de...
The vertical and horizontal regeneration of resorbed alveolar ridges remains a challenging surgical procedure, especially in the case of extensive bone atrophy. During the past years, different augmentation techniques have been proposed to restore an adequate bone volume. The aim of this study was to evaluate a technique for ridge augmentation in the maxilla and mandible using an individualized CA...
In the investigated time period, 17 patients received 21 TM augmentations. Fourteen of these patients were women and three men. Mean age at the time of augmentation was 37 ± 15 years (17–64 years). Twelve of the patients were non-smoker, and 5 patients were smoker. In 8 patients, a steady periodontal disease could be detected. Sixty-five percent (n = 11) of the patients presented a thin g...
Cone beam computed tomography (CBCT) of the treated sites was performed before augmentation procedure and 6 months postoperatively at time of reentry. Craniofacial bone and TM showed different radio-opacity, which allowed their easy differentiation on the scans after regulating the brightness and contrast. In our department, two different CBCTs were available (Accuitomo, J. Morita Corporation, Ja...
In a retrospective study, the clinical outcome of an individualized CAD-CAM-produced TM (Yxoss CBR®, Filderstadt, Germany) inserted by experienced surgeons in the Department of Oral and Maxillofacial Surgery of the University Medical Centre Mainz, Germany, between December 2014 and January 2017, was analyzed. Therefore, all patients with this CAD-CAM mesh augmentation and reentry operation for im...
The aim of this clinical study was to present the clinical outcome of individualized CAD-CAM-produced TM in combination with particulate autogenous bone mixed with deproteinized bovine bone mineral (DBBM) used to augment horizontal and/or vertical bony defects in both maxillary and mandibular arches, within a two-stage technique. Furthermore, gained horizontal and vertical bone height and the infl...
Dental implant placement is an effective treatment method for the replacement of lost teeth with high survival rates after long-term follow-up [1,2,3]. However, the long-term success and stability of implants in function are directly correlated with the quality and quantity of the available bone at the prospective implant site [4, 5]. Despite the development of various techniques and augmentation ...
The augmentation of the jaw has been and continues to be a sophisticated therapy in implantology. Modern CAD-CAM technologies lead to revival of old and established augmentation techniques such as the use of titanium mesh (TM) for bone augmentation. The aim of this retrospective study was to evaluate the clinical outcome of an individualized CAD-CAM-produced TM based on the CT/DVT-DICOM data of th...
Fig. 3. Example of another case involved in the study. a Preoperative view –premolars and molars are missing in left mandible. b Preoperative CT scan. The width of the ridge was around 4 mm. c Baseline periapical radiograph. Four narrow diameter implants were placed to restore the area. d Buccal view of the final full-contour zirconia restoration. e Periapical radiograph at 1 year after loa...
Fig. 2. Case 1: Example of one case involved in the study. a Preoperative view of a partial edentulism in posterior mandible. b Preoperative CT scan. The width of the ridge was 4 mm. c Four narrow diameter implants were placed and left to a nonsubmerged healing. d Baseline periapical radiograph. e Buccal vieew of the final metal ceramic restoration. f Periapical radiograph at 1 year after loa...
Fig. 1. Characteristics of the implants used in the study: a external macro-design of JDIcon Ultra S, 2.75 mm diameter implant and b external macro-design of JDEvolution S, 3.25 mm diameter implant
Fig. 1. Characteristics of the implants used in the study: a external macro-design of JDIcon Ultra S, 2.75 mm diameter implant and b external macro-design of JDEvolution S, 3.25 mm diameter i...
Diameter 2.75 mm
Follow-up
Mean bone level changes (mm) (n = 69)
0–6 months (95% CI) (n = 67)
0–12 months (95% CI) (n = 67)
...
Follow-up
Mean bone level (mm) (n = 124)
Time
0–6 months (95% CI) (n = 121)
0–12 months (95% CI) (n = 121)
...
Length (mm)
8
18 (14.5%)
10
56 (45.2%)
11.5
...
Number of patients
42
Males (%)
18 (42.9%)
Females (%)
24 (57.1%)
...
Grandi, T., Svezia, L. & Grandi, G. Narrow implants (2.75 and 3.25 mm diameter) supporting a fixed splinted prostheses in posterior regions of mandible: one-year results from a prospective cohort study.
Int J Implant Dent 3, 43 (2017). https://doi.org/10.1186/s40729-017-0102-6
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Received: 23 March 2017
Accepted: 29 August 2017
Published: 08 September 2017
...
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...
Tommaso Grandi serves as a consultant for JDentalCare. Luigi Svezia and Giovanni Grandi declare that they have no competing interests.
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Private practice, Via Contrada 323, 41126, Modena, Italy
Tommaso Grandi & Luigi Svezia
Department of Obstetrics, Gynecology and Pediatrics, University of Modena and Reggio Emilia, Modena, Italy
Giovanni Grandi
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Esposito M, Grusovin MG, Maghaireh H, Worthington HV. Interventions for replacing missing teeth: different times for loading dental implants (Review). Cochrane Database Syst Rev. 2013;(3):CD003878. https://doi.org/10.1002/14651858.CD003878.pub5.
Esposito M, Grusovin MG, Felice P, Karatzopoulos G, Worthington HV, Coulthard P. The efficacy of horizontal and vertical bone augmentation procedures for...
Within the limits of this prospective cohort study, narrow-diameter implants (2.75 to 3.25 mm) can be successfully used as a minimally invasive alternative to horizontal bone augmentation in posterior mandible up to 1 year of function. This outcome could be related to the fact that these implants have been all splinted to other implants by a fixed prosthesis. These preliminary results must be co...
On the one hand, due to the small sample size of this study and moreover, the short follow-up (only 1 year after loading), it would be hazardous to conclude that the placement of NDIs to support fixed prostheses in posterior mandible is a predictable treatment modality. In order to draw more reliable conclusions, we need to wait for longer follow-ups, since it may be possible that after several y...
Dental implants with a reduced diameter are commonly used where bone width is narrow or in cases of restricted mesiodistal anatomy such as laterally maxillary and mandibular incisors. They could also be a viable alternative to bone augmentation especially in challenging situations such as the posterior regions of the mandible. While it has been shown that it is possible to horizontally augment bon...
The radiographic data are summarized in Tables 3 and 4. The group lost statistically significant marginal peri-implant bone at 6 months (−0.20; 95% C −0.14: −0.26, p
Forty-eight patients were screened for eligibility, but six subjects were not included for the following reasons: five patients (10.4%) were hesitant to receive implant treatment, and one patient (2.1%) was treated with intravenous amino-bisphosphonates. Forty-two patients were then considered eligible and were consecutively enrolled in the study. All patients were treated according to the allocat...
Primary outcome measures were as follows:
Implant failure: evaluated as implant mobility and removal of stable implants dictated by progressive marginal bone loss or infection. The stability of each implant was measured manually by tightening the abutment screw with a wrench delivering a torque of 20 Ncm. Implant stability assessment was performed at delivery of definitive crowns (3 months afte...
The present prospective study was conducted at a private practice (Tommaso Grandi, Modena) in Italy between October 2014 and January 2016.
Any patient with partial edentulism in posterior regions of mandible (premolar/molar areas), requiring one multiple tooth implant-supported restoration (2-, 3-, or 4-unit bridge), having a residual bone height of at least 8 mm and a thickness of at least 4 m...
The aim of this cohort study was to evaluate the outcome of narrow-diameter implants (2.75 and 3.25 mm diameter) used as definitive implants in patients with insufficient bone ridge thickness for placing standard-diameter implants in posterior regions of the mandible. The present study reports the clinical outcome up to 1 year after loading. It is planned to follow up this patients’ cohort to ...
Historically, implants have been used and documented mainly with diameters between 3.7 and 4.3 mm. Employing these diameters for numerous indications, scientifically substantiated treatment protocols with excellent long-term results have been established [1]. One disadvantage of a standard-diameter implant is the fact that, in clinical use, the available horizontal crestal dimensions of the alveo...
Can multiple splinted narrow-diameter implants be used as definitive implants in patients with insufficient bone ridge thickness in posterior regions of the mandible? With this aim, we evaluated their outcomes in this set up to 1 year after loading.
Forty-two patients with a mean age of 61.3 years old (range 49–73) in need of fixed prosthetic implant-supported rehabilitations in the posterior...
Fig. 5. a Postoperative orthopantomogram. b Follow-up orthopantomogram. c Follow-up standard periapical radiogram (implants i42 and i44). d Follow-up standard periapical radiogram (implants i32 and i34)
Fig. 5. a Postoperative orthopantomogram. b Follow-up orthopantomogram. c Follow-up standard periapical radiogram (implants i42 and i44). d Follow-up standard periapical radiogram (implants i3...
Fig. 4. n. Intraoral and perioral views of a rehabilitated female patient. (She asked explicitly only for implantological treatment in the mandible.)
Fig. 4. a–h Prosthetic restauration—follow-up examination. Intraoral and perioral views of a rehabilitated female patient. (She asked explicitly only for implantological treatment in the mandible.)
Fig. 3. by resonance frequency analysis (Osstell AB, Göteborg, Sweden). b Secondary implant stability. The histogram shows the distribution of the implant stability quotients (ISQ) of osseointegrated implants. According to the measurement implant stability was classified as low with ISQ values 70 [34]
Fig. 3. a Primary implant stability. The histogram visualises the distribution of the im...
Fig. 2. Cumulative implant survival over the follow-up period. The Kaplan-Meyer diagram visualises the analysis of implant survival in the maxilla and in the mandible (log rank test, p = 0.173) over the follow-up period up to 37 months (Table 4)
Fig. 2. Cumulative implant survival over the follow-up period. The Kaplan-Meyer diagram visualises the analysis of implant survival in the maxi...
Fig. 1. e implant-abutment connection is characterised by an internal hexagon for rotation stability, combining the advantages of conical and parallel surfaces to reduce microgaps and micromovement [68]. The microthread concept and platform switching concept are implemented in the implant shoulder to reduce periimplant bone strain [53]. b Manual fixation of the expansion tool. Take note of the ...
Patient
Sex
Age (years)
Implant position (FDI)
Indication categorya
Bone quality
Prosthetic treatment
...
Type of prosthetic treatment
Session
Procedure
Fixed denture (bridge)
1
Open impression
...
Surgical protocol
Bone quality
D1
D2
D3
D4
1. Drilli...
Inclusion criteria
Exclusion criteria
1. Adult patients, male and female
1. Comorbidity ASA category ≥ III
2. Partially/totally edentulous patients
...
Reich, W., Schweyen, R., Heinzelmann, C. et al. Novel expandable short dental implants in situations with reduced vertical bone height—technical note and first results.
Int J Implant Dent 3, 46 (2017). https://doi.org/10.1186/s40729-017-0107-1
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Received: 18 August 2017
Accepted: 12 October 2017
Published: 30 October 2017
DOI: https://doi.org/10.1186/s40...
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...
Dataset presenting relevant raw data. (SAV 3 kb)
WR is a senior physician at the University Hospital Halle, Martin Luther University Halle-Wittenberg, Department of Oral and Plastic Maxillofacial Surgery, Halle/Saale, Germany.
RS is a clinical research associate at the University School of Dental Medicine, Department of Prosthetic Dentistry, Martin Luther University Halle-Wittenberg, Halle/Saale, Germany.
CH is a consultant at the University H...
Correspondence to
Waldemar Reich.
Department of Oral and Plastic Maxillofacial Surgery, Martin Luther University Halle-Wittenberg, Ernst-Grube Str. 40, 06120, Halle (Saale), Germany
Waldemar Reich, Christian Heinzelmann, Bilal Al-Nawas & Alexander Walter Eckert
University School of Dental Medicine, Department of Prosthetic Dentistry, Martin Luther University Halle-Wittenberg, Magdeburger Straße 16, 06112, Halle (Saale), Ger...
The authors are grateful to the DenTack Company for providing some of the implants and components used in this study. The courtesy of Oz Vachtenberg is acknowledged for providing Fig. 1a–f and the movie clip. There are no financial supports or conflicts of interest associated with this publication that could have influenced its outcome. We thank the Osstell Company, which supplied the RFA devic...
Mishra SK, Chowdhary R, Kumari S. Microleakage at different implant abutment interface: a systematic review. J Clin Diagn Res. 2017;11(6):ZE10–5.
Feichtinger M, Gaggl A, SChultes G, Kärcher H. Evaluation of distraction implants for prosthetic treatment after vertical alveolar ridge distraction: a clinical investigation. Int J Prosthodont. 2003;16(1):19–24.
Pradeep PR, Kasti KJ, Ananthakrish...
Gehrke SA, Pérez-Albacete Martinez C, Piattelli A, Shibli JA, Markovic A, Calvo Guirado JL. The influence of three different apical implant designs at stability and osseointegration process: experimental study in rabbits. Clin Oral Implants Res. 2017;28(3):355–61.
Herrero-Climent M, Santos-Garcia R, Jaramillo-Santos R, Romero-Ruiz MM, Fernandez-Palacin Lazaro-Calvo P, Bullon P, Rios-Santos JV....
Malmstrom H, Gupta B, Ghanem A, Cacciato R, Ren Y, Romanos GE. Success rate of short dental implants supporting single crowns and fixed bridges. Clin Oral Implants Res. 2016;27(9):1093–8.
Garfield RE. An expandable implant fixture. Dent Implantol Updat. 1998;9(5):37–40.
Nowzari H, Chee W, Tuan A, Abou-Rass M, Landesman HM. Clinical and microbiological aspects of the Sargon immediate load imp...
Brenner M, Brandt J, Lauer HC. Prothetische Versorgung auf kurzen Implantaten. Zahnmedizin up2date. 2014;2:123–42. (German)
Eitner S, Wichmann M, Schlegel KA, Kollmannberger JE, Nickenig HJ. Oral health-related quality of life and implant therapy: an evaluation of preoperative, intermediate, and post-treatment assessments of patients and physicians. J Craniomaxillofac Surg. 2012;40(1):20–3.
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De Moraes SL, Verri FR, Santiago JF Jr, Almeida DA, de Mello CC, Pellizzer EP. A 3-D finite element study of the influence of crown-implant ratio on stress distribution. Braz Dent J. 2013;24(6):635–41.
Moraes SL, Pellizzer EP, Verri FR, Santiago JF Jr, Silva JV. Three-dimensional finite element analysis on stress distribution in retention screws of different crown-implant ratios. Comput Methods...
Thoma DS, Haas R, Tutak M, Garcia A, Schincaglia GP, Hämmerle CH. Randomised controlled multicenter study comparing short dental implants (6 mm) versus longer dental implants (11-15 mm) in combination with sinus floor elevation procedures. Part 1: demographic and patient-reported outcomes at 1 year of loading. J Clin Periodontol. 2015;42(1):72–80.
Hentschel A, Herrmann J, Glauche I, Vollmer A,...
Schwarz F, Terheyden H. Significance of dental implants for health care. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz. 2011;54(9):1097–101. (German)
Gates WD, Cooper LF, Sanders AE, Reside GJ, De Kok IJ. The effect of implant-supported removable partial dentures on oral health quality of life. Clin Oral Impl Res. 2014;25:207–13.
Fretwurst T, Nack C, Al-Ghrairi M, Raguse JD, ...
Bone quality (density)
World Dental Federation
Implant stability quotient
Resonance frequency analysis
Initial results of the ongoing study confirm the feasibility and safety of the employed system. The implant type seems to be useful for all bone qualities and shows high initial and secondary biomechanical stability in the maxilla and mandible. Long-term follow-up will be needed in validating these initial results in a larger 3-year clinical trial. Crestal bone changes should be evaluated in a la...
Comparable studies displayed at 24 months a crestal bone loss of 0.5–0.6 mm [15]. Other authors reported at 2, 3 and 5 years a mean loss of 0.57, 0.55 and 0.53 mm, respectively, in the mandible (without significant change after 1 year) [10]. On the other hand, randomised controlled trials demonstrated 1 year after loading periimplant marginal bone loss of 0.7 mm [70] and 1.1 mm [7] in th...
Contrary to conventional hollow-screw implants (only marginal gap), a problem of the expandable implant is the presence of gaps down to the apical region. Former microbial assessment of different implant-abutment interfaces displayed that none of the marginal connections had the capacity to prevent microbial leakage [63,64,65]. Therefore, an apical microleakage (comparable to distractable implants...
Regarding resonance frequency analysis, the values are related to bone quality and quantity as well as the exposed implant height above the alveolar crest, which depends on the type of implant and insertion technique [55,56,57]. Our results (primary stability in the maxilla 66.9 ± 8.9 ISQ units and in the mandible 72.5 ± 11.1 ISQ units; secondary stability in the maxilla 66.4 ± 10.0...
Several investigators analysed the preferred indications of short dental implants in the posterior mandible or maxilla and outlined the cost efficiency compared to additional vertical augmentations. In the present trial, we used a new short implant in both jaws and nearly all possible indication categories were represented, which proves the broad versatility (Table 4).
In our study, two implant ...
Recent literature has shown that short implants have achieved growing acceptance in the field of oral implantology [9, 10, 39, 40]. Since the last years, concern has decreased about the length of endosseous implants; it should be noted that all extraoral screw implants are short implants [41, 42]. Nevertheless, there are local physiological and biomechanical differences regarding long-term stabili...
Over the follow-up period, the mean crestal bone changes after loading were as follows (each compared to the baseline): in the first year, 1.0 ± 0.9 mm 95% CI (0.5; 1.5) in the maxilla and 0.7 ± 0.4 mm 95% CI (0.5; 1.0) in the mandible (p = 0.011; independent t test), and in the second year, 1.3 ± 0.8 mm 95% CI (0.8; 1.7) in the maxilla and 1.0 ± 0.7 mm 95% CI (0.6; 1.4...
The first results of this longitudinal study include data from 9 patients with an average age of 57 years (range from 44 to 80) in whom 30 implants were inserted (maxilla n = 15, mandible n = 15). All 30 implants in the 9 patients could be inserted without intraoperative problems. Based on intraoperative and radiological findings, the bone quality was assessed as follows: D1 in n = 2,...
All patients were pseudonymised, parameters were attached to a databank and analysed statistically (Additional file 2). Statistical analyses were performed using statistics software (IBM SPSS statistics, version 20, Chicago, IL, USA). The descriptive statistics presented the frequency and distribution of several occurrences as well as combinations of certain features. Analytical statistics were p...
Simulation of the expansion process. At the end of the expansion process, a minimal snap back is realised. (MP4 9407 kb)
Planning of the implantological treatment followed usual clinical and radiological examination and, concerning the position and number of implants, the recommended categories from the German consensus conference [35]. The drilling sequence, condensing preparation (where necess...
The study was designed as a prospective monocentric longitudinal cohort study according to the STROBE criteria. The participants of this study were recruited at the university hospital of Martin Luther University Halle-Wittenberg, Department of Oral and Plastic Maxillofacial Surgery, implantological consultation from 2014 (June) until 2015 (June). Inclusion and exclusion criteria of adult patients...
It is known that achievement of primary stability is one precondition for osseointegration and treatment success. There are few reports of immediate [14] and early (6 weeks) functional loading of short implants [28]. This is related to good bone quality, implant design or implant site preparation (e.g. under-drilling). However, under-drilling of the crestal aspect may lead to decreased bone-to-im...
Endosseous implants have been established over several decades. The evaluation of treatment results under biomechanical, physiological, psychological, social and economic aspects has been well documented [1]. Furthermore, patient-based outcomes reveal a predictable gain in oral health-related quality of life [2].
Especially in patients with limited vertical bone height, process of treatment is ex...
Short implants often have the disadvantage of reduced primary stability. The present study was conducted to evaluate the feasibility and safety of a new expandable short dental implant system intended to increase primary stability.
As a “proof of concept”, a prospective clinical cohort study was designed to investigate intraoperative handling, primary and secondary implant stability (resonanc...
Sagheb, K., Schiegnitz, E., Moergel, M. et al. Clinical outcome of alveolar ridge augmentation with individualized CAD-CAM-produced titanium mesh.
Int J Implant Dent 3, 36 (2017). https://doi.org/10.1186/s40729-017-0097-z
Download citation
Received: 15 March 2017
Accepted: 13 July 2017
Published: 26 July 2017
DOI: https://doi.org/10.1186/s40729-017-0097-z
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...
Keyvan Sagheb reports personal fees and grants from Dentsply, Geistlich, and Nobel Biocare outside the submitted work. Eik Schiegnitz reports personal fees and grants from Septodont, Dentsply, Geistlich, and Straumann outside the submitted work. Maximilian Moergel reports grants from Camlog outside the submitted work. Christian Walter reports grants and personal fees from Straumann outside the sub...
Correspondence to
E. Schiegnitz.
K. Sagheb and E. Schiegnitz contributed equally to this work.
Department of Oral and Maxillofacial Surgery, Plastic Surgery, University Medical Centre of the Johannes Gutenberg-University Mainz, Mainz, Germany
K. Sagheb, E. Schiegnitz, M. Moergel, C. Walter, B. Al-Nawas & W. Wagner
Mediplus, Oral and Maxillofacial Surgery, Private Praxis, Mainz, Germany
C. Walter
You can also search for...
Ali S, Bakry SA, Abd-Elhakam H. Platelet-rich fibrin in maxillary sinus augmentation: a systematic review. The Journal of oral implantology. 2015;41(6):746–53. PubMed PMID: 25536095
Moraschini V, Barboza ES. Effect of autologous platelet concentrates for alveolar socket preservation: a systematic review. Int J Oral Maxillofac Surg. 2015;44(5):632–41. PubMed PMID: 25631334
Torres J, Tamimi F,...
Pieri F, Corinaldesi G, Fini M, Aldini NN, Giardino R, Marchetti C. Alveolar ridge augmentation with titanium mesh and a combination of autogenous bone and anorganic bovine bone: a 2-year prospective study. J Periodontol. 2008;79(11):2093–103. PubMed PMID: 18980518
Proussaefs P, Lozada J. Use of titanium mesh for staged localized alveolar ridge augmentation: clinical and histologic-histomorphom...
von Arx T, Kurt B. Implant placement and simultaneous peri-implant bone grafting using a micro titanium mesh for graft stabilization. Int J Periodontics Restorative Dent. 1998;18(2):117–27. PubMed PMID: 9663090
von Arx T, Kurt B. Implant placement and simultaneous ridge augmentation using autogenous bone and a micro titanium mesh: a prospective clinical study with 20 implants. Clin Oral Implant...
Moraschini V, Poubel LA, Ferreira VF, Barboza ES. 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. PubMed PMID: 25467739
Al-Nawas B, Kammerer PW, Morbach T, Ladwein C, Wegener J, Wagner W. Ten-year retrospective follow-up study of the TiO...
Within the limitations of this study, being retrospective and having no control group, the results show that individualized CAD-CAM-produced titanium meshes are a safe and predictable procedure for large vertical and horizontal ridge augmentations. The soft tissue covering remains one of the most critical steps using this technique. However, exposure of the mesh does not result in complete loss of...
The results showed that in all 21 augmented sites, a significant ridge augmentation was achieved, with a mean vertical augmentation of 6.5 ± 1.7 mm and a mean horizontal augmentation of 5.5 ± 1.9 mm. To our best knowledge, this is the first study investigating these parameters in individualized CAD-CAM-produced titanium meshes. For conventional titanium meshes, several studies were publish...
In our study, PRF membranes were additionally to collagen membranes used to cover the CAD-CAM mesh. The aim of this clinical approach was to improve and accelerate wound healing. The results with the low exposure rates and the sufficient augmentation heights indicated that these PRF membranes are a promising technique. However, due to low case number in the control group without a PRF membrane, de...
The vertical and horizontal regeneration of resorbed alveolar ridges remains a challenging surgical procedure, especially in the case of extensive bone atrophy. During the past years, different augmentation techniques have been proposed to restore an adequate bone volume. The aim of this study was to evaluate a technique for ridge augmentation in the maxilla and mandible using an individualized CA...
In the investigated time period, 17 patients received 21 TM augmentations. Fourteen of these patients were women and three men. Mean age at the time of augmentation was 37 ± 15 years (17–64 years). Twelve of the patients were non-smoker, and 5 patients were smoker. In 8 patients, a steady periodontal disease could be detected. Sixty-five percent (n = 11) of the patients presented a thin g...
Cone beam computed tomography (CBCT) of the treated sites was performed before augmentation procedure and 6 months postoperatively at time of reentry. Craniofacial bone and TM showed different radio-opacity, which allowed their easy differentiation on the scans after regulating the brightness and contrast. In our department, two different CBCTs were available (Accuitomo, J. Morita Corporation, Ja...
In a retrospective study, the clinical outcome of an individualized CAD-CAM-produced TM (Yxoss CBR®, Filderstadt, Germany) inserted by experienced surgeons in the Department of Oral and Maxillofacial Surgery of the University Medical Centre Mainz, Germany, between December 2014 and January 2017, was analyzed. Therefore, all patients with this CAD-CAM mesh augmentation and reentry operation for im...
The aim of this clinical study was to present the clinical outcome of individualized CAD-CAM-produced TM in combination with particulate autogenous bone mixed with deproteinized bovine bone mineral (DBBM) used to augment horizontal and/or vertical bony defects in both maxillary and mandibular arches, within a two-stage technique. Furthermore, gained horizontal and vertical bone height and the infl...
Dental implant placement is an effective treatment method for the replacement of lost teeth with high survival rates after long-term follow-up [1,2,3]. However, the long-term success and stability of implants in function are directly correlated with the quality and quantity of the available bone at the prospective implant site [4, 5]. Despite the development of various techniques and augmentation ...
The augmentation of the jaw has been and continues to be a sophisticated therapy in implantology. Modern CAD-CAM technologies lead to revival of old and established augmentation techniques such as the use of titanium mesh (TM) for bone augmentation. The aim of this retrospective study was to evaluate the clinical outcome of an individualized CAD-CAM-produced TM based on the CT/DVT-DICOM data of th...
Fig. 5.
Fig. 5. a Postoperative orthopantomogram. b Follow-up orthopantomogram. c Follow-up standard periapical radiogram (implants i42 and i44). d Follow-up standard periapical radiogram (implants i32 and i34)
mandible.)
Fig. 4. a–h Prosthetic restauration—follow-up examination. Intraoral and perioral views of a rehabilitated female patient. (She asked explicitly only for implantological treatment in the mandible.)
Fig. 3. ution of the implant stability quotients (ISQ) for both jaws measured by resonance frequency analysis (Osstell AB, Göteborg, Sweden). b Secondary implant stability. The histogram shows the distribution of the implant stability quotients (ISQ) of osseointegrated implants. According to the measurement implant stability was classified as low with ISQ values 70 [34]
Fig. 3. a Primary ...
Fig. 2. Cumulative implant survival over the follow-up period. The Kaplan-Meyer diagram visualises the analysis of implant survival in the maxilla and in the mandible (log rank test, p = 0.173) over the follow-up period up to 37 months (Table 4)
Fig. 2. Cumulative implant survival over the follow-up period. The Kaplan-Meyer diagram visualises the analysis of implant survival in the maxi...
Fig. 1. he implant-abutment connection is characterised by an internal hexagon for rotation stability, combining the advantages of conical and parallel surfaces to reduce microgaps and micromovement [68]. The microthread concept and platform switching concept are implemented in the implant shoulder to reduce periimplant bone strain [53]. b Manual fixation of the expansion tool. Take note of the...
Patient
Sex
Age (years)
Implant position (FDI)
Indication categorya
Bone quality
Prosthetic treatment
...
Type of prosthetic treatment
Session
Procedure
Fixed denture (bridge)
1
Open impression
...
Surgical protocol
Bone quality
D1
D2
D3
D4
1. Drilli...
Inclusion criteria
Exclusion criteria
1. Adult patients, male and female
1. Comorbidity ASA category ≥ III
2. Partially/totally edentulous patients
...
Reich, W., Schweyen, R., Heinzelmann, C. et al. Novel expandable short dental implants in situations with reduced vertical bone height—technical note and first results.
Int J Implant Dent 3, 46 (2017). https://doi.org/10.1186/s40729-017-0107-1
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Received: 18 August 2017
Accepted: 12 October 2017
Published: 30 October 2017
DOI: https://doi.org/10.1186/s40...
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...
Dataset presenting relevant raw data. (SAV 3 kb)
WR is a senior physician at the University Hospital Halle, Martin Luther University Halle-Wittenberg, Department of Oral and Plastic Maxillofacial Surgery, Halle/Saale, Germany.RS is a clinical research associate at the University School of Dental Medicine, Department of Prosthetic Dentistry, Martin Luther University Halle-Wittenberg, Halle/Saale, Germany.CH is a consultant at the University Hospi...
WR is a senior physician at the University Hospital Halle, Martin Luther University Halle-Wittenberg, Department of Oral and Plastic Maxillofacial Surgery, Halle/Saale, Germany.
RS is a clinical research associate at the University School of Dental Medicine, Department of Prosthetic Dentistry, Martin Luther University Halle-Wittenberg, Halle/Saale, Germany.
CH is a consultant at the University H...
Correspondence to
Waldemar Reich.
Department of Oral and Plastic Maxillofacial Surgery, Martin Luther University Halle-Wittenberg, Ernst-Grube Str. 40, 06120, Halle (Saale), Germany
Waldemar Reich, Christian Heinzelmann, Bilal Al-Nawas & Alexander Walter Eckert
University School of Dental Medicine, Department of Prosthetic Dentistry, Martin Luther University Halle-Wittenberg, Magdeburger Straße 16, 06112, Halle (Saale), Ger...
The authors are grateful to the DenTack Company for providing some of the implants and components used in this study. The courtesy of Oz Vachtenberg is acknowledged for providing Fig. 1a–f and the movie clip. There are no financial supports or conflicts of interest associated with this publication that could have influenced its outcome. We thank the Osstell Company, which supplied the RFA devic...
Mishra SK, Chowdhary R, Kumari S. Microleakage at different implant abutment interface: a systematic review. J Clin Diagn Res. 2017;11(6):ZE10–5.
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...
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Fretwurst T, Nack C, Al-Ghrairi M, Raguse JD, ...
Bone quality (density)
World Dental Federation
Implant stability quotient
Resonance frequency analysis
Initial results of the ongoing study confirm the feasibility and safety of the employed system. The implant type seems to be useful for all bone qualities and shows high initial and secondary biomechanical stability in the maxilla and mandible. Long-term follow-up will be needed in validating these initial results in a larger 3-year clinical trial. Crestal bone changes should be evaluated in a la...
Comparable studies displayed at 24 months a crestal bone loss of 0.5–0.6 mm [15]. Other authors reported at 2, 3 and 5 years a mean loss of 0.57, 0.55 and 0.53 mm, respectively, in the mandible (without significant change after 1 year) [10]. On the other hand, randomised controlled trials demonstrated 1 year after loading periimplant marginal bone loss of 0.7 mm [70] and 1.1 mm [7] in th...
Contrary to conventional hollow-screw implants (only marginal gap), a problem of the expandable implant is the presence of gaps down to the apical region. Former microbial assessment of different implant-abutment interfaces displayed that none of the marginal connections had the capacity to prevent microbial leakage [63,64,65]. Therefore, an apical microleakage (comparable to distractable implants...
Regarding resonance frequency analysis, the values are related to bone quality and quantity as well as the exposed implant height above the alveolar crest, which depends on the type of implant and insertion technique [55,56,57]. Our results (primary stability in the maxilla 66.9 ± 8.9 ISQ units and in the mandible 72.5 ± 11.1 ISQ units; secondary stability in the maxilla 66.4 ± 10.0...
Several investigators analysed the preferred indications of short dental implants in the posterior mandible or maxilla and outlined the cost efficiency compared to additional vertical augmentations. In the present trial, we used a new short implant in both jaws and nearly all possible indication categories were represented, which proves the broad versatility (Table 4).
In our study, two implant ...
Recent literature has shown that short implants have achieved growing acceptance in the field of oral implantology [9, 10, 39, 40]. Since the last years, concern has decreased about the length of endosseous implants; it should be noted that all extraoral screw implants are short implants [41, 42]. Nevertheless, there are local physiological and biomechanical differences regarding long-term stabili...
Over the follow-up period, the mean crestal bone changes after loading were as follows (each compared to the baseline): in the first year, 1.0 ± 0.9 mm 95% CI (0.5; 1.5) in the maxilla and 0.7 ± 0.4 mm 95% CI (0.5; 1.0) in the mandible (p = 0.011; independent t test), and in the second year, 1.3 ± 0.8 mm 95% CI (0.8; 1.7) in the maxilla and 1.0 ± 0.7 mm 95% CI (0.6; 1.4...
The first results of this longitudinal study include data from 9 patients with an average age of 57 years (range from 44 to 80) in whom 30 implants were inserted (maxilla n = 15, mandible n = 15). All 30 implants in the 9 patients could be inserted without intraoperative problems. Based on intraoperative and radiological findings, the bone quality was assessed as follows: D1 in n = 2,...
All patients were pseudonymised, parameters were attached to a databank and analysed statistically (Additional file 2). Statistical analyses were performed using statistics software (IBM SPSS statistics, version 20, Chicago, IL, USA). The descriptive statistics presented the frequency and distribution of several occurrences as well as combinations of certain features. Analytical statistics were p...
Simulation of the expansion process. At the end of the expansion process, a minimal snap back is realised. (MP4 9407 kb)
Planning of the implantological treatment followed usual clinical and radiological examination and, concerning the position and number of implants, the recommended categories from the German consensus conference [35]. The drilling sequence, condensing preparation (where necess...
The study was designed as a prospective monocentric longitudinal cohort study according to the STROBE criteria. The participants of this study were recruited at the university hospital of Martin Luther University Halle-Wittenberg, Department of Oral and Plastic Maxillofacial Surgery, implantological consultation from 2014 (June) until 2015 (June). Inclusion and exclusion criteria of adult patients...
It is known that achievement of primary stability is one precondition for osseointegration and treatment success. There are few reports of immediate [14] and early (6 weeks) functional loading of short implants [28]. This is related to good bone quality, implant design or implant site preparation (e.g. under-drilling). However, under-drilling of the crestal aspect may lead to decreased bone-to-im...
Endosseous implants have been established over several decades. The evaluation of treatment results under biomechanical, physiological, psychological, social and economic aspects has been well documented [1]. Furthermore, patient-based outcomes reveal a predictable gain in oral health-related quality of life [2].
Especially in patients with limited vertical bone height, process of treatment is ex...
Short implants often have the disadvantage of reduced primary stability. The present study was conducted to evaluate the feasibility and safety of a new expandable short dental implant system intended to increase primary stability.
As a “proof of concept”, a prospective clinical cohort study was designed to investigate intraoperative handling, primary and secondary implant stability (resonanc...
Figure 3. Example of another case involved in the study. a Preoperative view –premolars and molars are missing in left mandible. b Preoperative CT scan. The width of the ridge was around 4 mm. c Baseline periapical radiograph. Four narrow diameter implants were placed to restore the area. d Buccal view of the final full-contour zirconia restoration. e Periapical radiograph at 1...
Figure 2. Case 1: Example of one case involved in the study. a Preoperative view of a partial edentulism in posterior mandible. b Preoperative CT scan. The width of the ridge was 4 mm. c Four narrow diameter implants were placed and left to a nonsubmerged healing. d Baseline periapical radiograph. e Buccal vieew of the final metal ceramic restoration. f Periapical radiograph at ...
Diameter 2.75 mm
Follow-up
Mean bone level changes (mm) (n = 69)
0–6 months (95% CI) (n = 67)
0–12 months (95% CI) (n = 67)
p inter-groups
Baseline
0.02 ± 0.07
−0.18 (−0.09; −0.27)
−0.47 (−0.27; −0.67)
p = 0.786
6 months
0.20 ± 0.12
p intra-group
12 months
0.49 ± 0.30
p
Length (mm)
8
18 (14.5%)
10
56 (45.2%)
11.5
43 (34.7%)
13
7 (5.6%)
Diameter (mm)
2.75
69 (55.6%)
3.25
55 (44.4%)
Insertion torque (Ncm)
30
21 (16.9%)
35
16 (12.9%)
40
10 (8.1%)
45
11 (8.9%)
50
32 (25.8%)
55
7 (5.6%)
60
16 (12.9%)
65
5 (4.1%)
70
6 (4.8%)
Number of patients
42
Males (%)
18 (42.9%)
Females (%)
24 (57.1%)
Mean age at insertion (range)
62.6 (49–73)
Smokers (less than 10 cigarettes/die)
12 (28.6%)
Diseases in history
Controlled diabetes type 2
11 (26.2%)
Hypertension
19 (45.2%)
Site of insertion
Premolar
81 (65.3%)
Molar
43 (34.7%)
Opposite dentition
...
Figure 1. Characteristics of the implants used in the study: a external macro-design of JDIcon Ultra S, 2.75 mm diameter implant and b external macro-design of JDEvolution S, 3.25 mm diameter implant
References
Esposito M, Grusovin MG, Maghaireh H, Worthington HV. Interventions for replacing missing teeth: different times for loading dental implants (Review). Cochrane Database Syst Rev. 2013;(3):CD003878. https://doi.org/10.1002/14651858.CD003878.pub5.
Esposito M, Grusovin MG, Felice P, Karatzopoulos G, Worthington HV, Coulthard P. The efficacy of horizontal and vertical bone augmenta...
Klein et al., in a recent systematic review, reported that the survival rate of implants with a diameter of
Discussion
Dental implants with a reduced diameter are commonly used where bone width is narrow or in cases of restricted mesiodistal anatomy such as laterally maxillary and mandibular incisors. They could also be a viable alternative to bone augmentation especially in challenging situations such as the posterior regions of the mandible. While it has been shown that it is possible to horizo...
Results
Forty-eight patients were screened for eligibility, but six subjects were not included for the following reasons: five patients (10.4%) were hesitant to receive implant treatment, and one patient (2.1%) was treated with intravenous amino-bisphosphonates. Forty-two patients were then considered eligible and were consecutively enrolled in the study. All patients were treated according to ...
Secondary outcome measures were as follows:
Peri-implant marginal bone level changes: evaluated on intraoral radiographs taken with the paralleling technique at implant placement, 6 months and 1 year after loading. All measurements were taken by an independent assessor (LS). Radiographs were scanned, digitized in JPG format, converted to TIFF format with a 600 dpi resolution, and stored in...
On the day of surgery, patients were treated under local anesthesia.
Full-thickness crestal flaps were elevated with a minimal extension to reduce patient discomfort. The implant sites were prepared according to the procedure recommended by the implant manufacturer (JDentalCare, Modena, Italy).
Tapered narrow-diameter implants titanium grade 5 (2.75 and 3.25 mm diameter, respectively, JDIcon Ult...
Methods
The present prospective study was conducted at a private practice (Tommaso Grandi, Modena) in Italy between October 2014 and January 2016.
Any patient with partial edentulism in posterior regions of mandible (premolar/molar areas), requiring one multiple tooth implant-supported restoration (2-, 3-, or 4-unit bridge), having a residual bone height of at least 8 mm and a thickness of at ...
Background
Historically, implants have been used and documented mainly with diameters between 3.7 and 4.3 mm. Employing these diameters for numerous indications, scientifically substantiated treatment protocols with excellent long-term results have been established [1]. One disadvantage of a standard-diameter implant is the fact that, in clinical use, the available horizontal crestal dimension...
Narrow implants (2.75 and 3.25 mm diameter) supporting a fixed splinted prostheses in posterior regions of mandible: one-year results from a prospective cohort study
Abstract
Background
Can multiple splinted narrow-diameter implants be used as definitive implants in patients with insufficient bone ridge thickness in posterior regions of the mandible? With this aim, we evaluated their out...
Figure 5 a Postoperative orthopantomogram. b Follow-up orthopantomogram. c Follow-up standard periapical radiogram (implants i42 and i44). d Follow-up standard periapical radiogram (implants i32 and i34)
Figure 4 a–h Prosthetic restauration—follow-up examination. Intraoral and perioral views of a rehabilitated female patient. (She asked explicitly only for implantological treatment in the mandible.)
Figure 3. a Primary implant stability. The histogram visualises the distribution of the implant stability quotients (ISQ) for both jaws measured by resonance frequency analysis (Osstell AB, Göteborg, Sweden). b Secondary implant stability. The histogram shows the distribution of the implant stability quotients (ISQ) of osseointegrated implants. According to the measurement implant stabil...
Figure 2. Cumulative implant survival over the follow-up period. The Kaplan-Meyer diagram visualises the analysis of implant survival in the maxilla and in the mandible (log rank test, p = 0.173) over the follow-up period up to 37 months (Table 4)
Figure 1. a Closed short expandable dental implant (4.1 × 7 mm). The implant-abutment connection is characterised by an internal hexagon for rotation stability, combining the advantages of conical and parallel surfaces to reduce microgaps and micromovement. The microthread concept and platform switching concept are implemented in the implant shoulder to reduce periimplant bone strain. b...
Patient
Sex
Age (years)
Implant position (FDI)
Indication categorya
Bone quality
Prosthetic treatment
Follow-up (months)
Implant failure
1. T. I.
F
80
Maxilla 15, 13, 11, 21, 25 (Σ = 5)
IIa
D4
Telescope
37
n = 1c
2. G. S.
F
65
Mandible 34, 32, 42, 44 (Σ = 4)
IIIb
D1
Ball attachment
34
None
3. S. Sa.
F
64
Maxilla 14, 12, 22, 24 (Σ = 4)
...
Type of prosthetic treatment
Session
Procedure
Fixed denture (bridge)
1
Open impression
2
Abutment check, set-up • Titanium abutments • Non-precious metal framework, completely lined • Neighbouring crowns interlocked
3
Check and insertion of the suprastructure • Cementation (ImProv™, Dentegris, Duisburg, Germany)
Combined fixed-removable dentur...
Surgical protocol
Bone quality
D1
D2
D3
D4
1. Drilling sequence (splint)
Last drill
Last drill
Second to last drill
Second to last drill
2. Condensing preparation
–
–
(Analogue to last drill)
Analogue to last drill
3. Implant insertion (maximum torque ≤ 40 N cm)
4. Expansion (maximum torque ≤ 40 N cm)
5. Evaluation of primary ...
Inclusion criteria
Exclusion criteria
1. Adult patients, male and female
1. Comorbidity ASA category ≥ III
2. Partially/totally edentulous patients
2. Pregnancy, bruxism
3. Alveolar process atrophy Cawood et Howell category ≥ IV
3. Smoking ≥ 10 cigarettes/day
4. Minimum vertical bone height of 7–9 mm for placement of short implants (5–7-mm length)...
Based on an earlier animal histologic study, as well as a clinical up-to-40-month study, which referred to comparable apically expandable implants, authors did not report any periapical inflammatory complications. To eliminate the potential risk of deep intrabony microleakage, it is questionable whether equal biomechanical stability values can be achieved only by the macroth...
In relation to the results by McCullough and Klokkevold, who found that the macrothread design appears to play a positive role in implant stability in the early healing period, this can also be assumed for the employed implant system.
Additionally, with regard to the results by Marković and co-authors, a critical stability drop down due to bone remodeling after bone condensing (impla...
The expansion procedure presents an additional bicortical anchorage in the oro-vestibular direction. In hard bone, this might be a disadvantage and lead to asymmetrical expansion. Manufacturers’ recommendations for hard bone should be strongly considered.
Regarding resonance frequency analysis, the values are related to bone quality and quantity as well as the exposed impl...
Several investigators analysed the preferred indications of short dental implants in the posterior mandible or maxilla and outlined the cost efficiency compared to additional vertical augmentations. In the present trial, we used a new short implant in both jaws and nearly all possible indication categories were represented, which proves the broad versatility (Table 4).
In our study, two imp...
Discussion
Recent literature has shown that short implants have achieved growing acceptance in the field of oral implantology. Since the last years, concern has decreased about the length of endosseous implants; it should be noted that all extraoral screw implants are short implants. Nevertheless, there are local physiological and biomechanical differences regarding long-term stability.
Th...
Results
The first results of this longitudinal study include data from 9 patients with an average age of 57 years (range from 44 to 80) in whom 30 implants were inserted (maxilla n = 15, mandible n = 15). All 30 implants in the 9 patients could be inserted without intraoperative problems. Based on intraoperative and radiological findings, the bone quality was assessed...
Surgical and prosthetic protocol
Planning of the implantological treatment followed usual clinical and radiological examination and, concerning the position and number of implants, the recommended categories from the German consensus conference. The drilling sequence, condensing preparation (where necessary) and manual implant insertion as well as expansion are described in detail...
Material and methods
Study population and measures
The study was designed as a prospective monocentric longitudinal cohort study according to the STROBE criteria. The participants of this study were recruited at the university hospital of Martin Luther University Halle-Wittenberg, Department of Oral and Plastic Maxillofacial Surgery, implantological consultation from 2014 (June...
... the diameter of an implant has greater influence on primary stability than implant length.
Based on in vitro analysis, they concluded additionally that especially in patients with poor bone quality, a variation of implant dimensions is expected to lead to a significant increase of primary stability. Furthermore, stress distribution on short implants is affected by the bone-to-...
Introduction
Endosseous implants have been established over several decades. The evaluation of treatment results under biomechanical, physiological, psychological, social and economic aspects has been well documented. Furthermore, patient-based outcomes reveal a predictable gain in oral health-related quality of life.
Especially in patients with limited vertical bone height, process of treatme...
Novel expandable short dental implants in situations with reduced vertical bone height—technical note and first results
Abstract
Purpose
Short implants often have the disadvantage of reduced primary stability. The present study was conducted to evaluate the feasibility and safety of a new expandable short dental implant system intended to increase primary stability.
Methods
As a “pr...