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Systematic review of the survival rate and incidence of biologic, technical, and esthetic complications of single implant abutments supporting fixed prostheses

 Yoshihiko Sugita  ;  Yuuma Honda  ;  Ikuro Kato  ;  Katsutoshi Kubo  ;  Hatsuhiko Maeda  ;  Takahiro Ogawa 
 International Journal of Oral & Maxillofacial Implants, Vol.29(6) : 99-116, 2014 
Journal Title
 International Journal of Oral & Maxillofacial Implants 
Issue Date
Ceramics/adverse effects* ; Confidence Intervals ; Dental Abutments/adverse effects* ; Dental Abutments/statistics & numerical data ; Dental Alloys/adverse effects* ; Dental Implants, Single-Tooth/adverse effects* ; Dental Implants, Single-Tooth/statistics & numerical data ; Dental Prosthesis, Implant-Supported/adverse effects* ; Dental Prosthesis, Implant-Supported/statistics & numerical data ; Dental Restoration Failure/statistics & numerical data* ; Esthetics, Dental ; Humans ; Incidence ; Time Factors
PURPOSE: To assess the 5-year survival rate and number of technical, biologic, and esthetic complications involving implant abutments. MATERIALS AND METHODS: Electronic (Medline) and hand searches were performed to assess studies on metal and ceramic implant abutments. Relevant data from a previous review were included. Two reviewers independently extracted the data. Failure and complication rates were analyzed, and estimates of 5-year survival proportions were calculated from the relationship between event rate and survival function. Multivariable robust Poisson regression was used to compare abutment characteristics. RESULTS: The search yielded 1,558 titles and 274 abstracts. Twenty-four studies were selected for data analysis. The survival rate for ceramic abutments was 97.5% (95% confidence interval [CI]): 89.6% to 99.4%) and 97.6% (95% CI: 96.2% to 98.5%) for metal abutments. The overall 5-year rate for technical complications was 11.8% (95% CI: 8.5% to 16.3%), 8.9% (95% CI: 4.3% to 17.7%) for ceramic and 12.0% (95% CI: 8.5% to 16.8%) for metal abutments. Biologic complications occurred with an overall rate of 6.4% (95% CI: 3.3% to 12.0%), 10.4% (95% CI: 1.9% to 46.7%) for ceramic, and 6.1% (95% CI: 3.1% to 12.0%) for metal abutments. CONCLUSIONS: The present meta-analysis on single-implant prostheses presents high survival rates of single implants, abutments, and prostheses after 5 years of function. No differences were found for the survival and failure rates of ceramic and metal abutments. No significant differences were found for technical, biologic, and esthetic complications of internally and externally connected abutments.
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2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sun Jai(김선재) ORCID logo https://orcid.org/0000-0002-0828-8008
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