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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. 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...