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Implant-supported overdentures with different bar designs: A retrospective evaluation after 5-19 years of clinical function
PURPOSE: This retrospective study evaluated the outcome of implant-retained overdentures (IODs) after 5-19 years of clinical function. MATERIALS AND METHODS: A retrospective analysis of patient files was performed referring to 27 patients who received 36 IODs with 3 different bar designs (group A=pr...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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The Korean Academy of Prosthodontics
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4551791/ https://www.ncbi.nlm.nih.gov/pubmed/26330982 http://dx.doi.org/10.4047/jap.2015.7.4.338 |
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author | Rinke, Sven Rasing, Hajo Gersdorff, Nikolaus Buergers, Ralf Roediger, Matthias |
author_facet | Rinke, Sven Rasing, Hajo Gersdorff, Nikolaus Buergers, Ralf Roediger, Matthias |
author_sort | Rinke, Sven |
collection | PubMed |
description | PURPOSE: This retrospective study evaluated the outcome of implant-retained overdentures (IODs) after 5-19 years of clinical function. MATERIALS AND METHODS: A retrospective analysis of patient files was performed referring to 27 patients who received 36 IODs with 3 different bar designs (group A=prefabricated round bars, n=7; group B=one-piece anterior milled bars, n=20; and group C=two bilaterally placed milled bars, n=9) in the mandible (n=24) and/or in the maxilla (n=12). The analysis focused on the survival and success rates (according to Kaplan-Meier) of the implants and prostheses. Technical complication rates for each type of restoration were analyzed and compared via one-way ANOVA and the Chi-squared test. The prevalence of peri-implantitis (radiographic bone loss ≥3.5 mm) was evaluated by digital analysis of panoramic radiographs taken post-operative (baseline) and after 5-19 years of clinical function (follow-up). RESULTS: The mean observational time was 7.3 years. The survival rates of the prostheses and implants were 100% and 97.7%, respectively. Technical complications occurred more frequently in group A (mean: 3.5 during observational time) than in the other two groups (B: 0.8; C: 1.0). However, this difference was not statistically significant (P=0.58). Peri-implantitis was diagnosed for 12.4% of the implants in 37% of the patients. CONCLUSION: Bar-retained IODs are an adequate treatment option for edentulous jaws. These restorations may exhibit high implant/prosthesis survival rates (>97%), and a limited incidence of technical complications after a mean observational period of >7 years. Nevertheless, peri-implantitis was identified as a frequent and serious biological complication for this type of reconstruction. |
format | Online Article Text |
id | pubmed-4551791 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | The Korean Academy of Prosthodontics |
record_format | MEDLINE/PubMed |
spelling | pubmed-45517912015-09-01 Implant-supported overdentures with different bar designs: A retrospective evaluation after 5-19 years of clinical function Rinke, Sven Rasing, Hajo Gersdorff, Nikolaus Buergers, Ralf Roediger, Matthias J Adv Prosthodont Original Article PURPOSE: This retrospective study evaluated the outcome of implant-retained overdentures (IODs) after 5-19 years of clinical function. MATERIALS AND METHODS: A retrospective analysis of patient files was performed referring to 27 patients who received 36 IODs with 3 different bar designs (group A=prefabricated round bars, n=7; group B=one-piece anterior milled bars, n=20; and group C=two bilaterally placed milled bars, n=9) in the mandible (n=24) and/or in the maxilla (n=12). The analysis focused on the survival and success rates (according to Kaplan-Meier) of the implants and prostheses. Technical complication rates for each type of restoration were analyzed and compared via one-way ANOVA and the Chi-squared test. The prevalence of peri-implantitis (radiographic bone loss ≥3.5 mm) was evaluated by digital analysis of panoramic radiographs taken post-operative (baseline) and after 5-19 years of clinical function (follow-up). RESULTS: The mean observational time was 7.3 years. The survival rates of the prostheses and implants were 100% and 97.7%, respectively. Technical complications occurred more frequently in group A (mean: 3.5 during observational time) than in the other two groups (B: 0.8; C: 1.0). However, this difference was not statistically significant (P=0.58). Peri-implantitis was diagnosed for 12.4% of the implants in 37% of the patients. CONCLUSION: Bar-retained IODs are an adequate treatment option for edentulous jaws. These restorations may exhibit high implant/prosthesis survival rates (>97%), and a limited incidence of technical complications after a mean observational period of >7 years. Nevertheless, peri-implantitis was identified as a frequent and serious biological complication for this type of reconstruction. The Korean Academy of Prosthodontics 2015-08 2015-08-18 /pmc/articles/PMC4551791/ /pubmed/26330982 http://dx.doi.org/10.4047/jap.2015.7.4.338 Text en © 2015 The Korean Academy of Prosthodontics http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Rinke, Sven Rasing, Hajo Gersdorff, Nikolaus Buergers, Ralf Roediger, Matthias Implant-supported overdentures with different bar designs: A retrospective evaluation after 5-19 years of clinical function |
title | Implant-supported overdentures with different bar designs: A retrospective evaluation after 5-19 years of clinical function |
title_full | Implant-supported overdentures with different bar designs: A retrospective evaluation after 5-19 years of clinical function |
title_fullStr | Implant-supported overdentures with different bar designs: A retrospective evaluation after 5-19 years of clinical function |
title_full_unstemmed | Implant-supported overdentures with different bar designs: A retrospective evaluation after 5-19 years of clinical function |
title_short | Implant-supported overdentures with different bar designs: A retrospective evaluation after 5-19 years of clinical function |
title_sort | implant-supported overdentures with different bar designs: a retrospective evaluation after 5-19 years of clinical function |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4551791/ https://www.ncbi.nlm.nih.gov/pubmed/26330982 http://dx.doi.org/10.4047/jap.2015.7.4.338 |
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