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Volume 22
Special Supplement 2007

Pages 7195.


In Patients Requiring Single-Tooth Replacement, What Are the Outcomes of Implant- as Compared to Tooth-Supported Restorations?

Thomas J. Salinas, DDS / Steven E. Eckert, DDS, MS


PMID: 18437792

Purpose: The study provides a systematic review of the literature to determine the long-term survival characteristics of single implant-supported crowns and fixed partial dentures. Materials and Methods: A search of the MEDLINE, EMBASE, and Cochrane Collaboration databases was conducted to identify articles that compared survival and success of fixed partial dentures and single implant-supported crowns. In addition to comparative cohort studies, articles that pertained specifically to single implant-supported crowns or fixed partial dentures were included in this review. Inclusion criteria for implant and fixed partial denture articles included a minimum 2-year study, primary publication in the English language, a minimum of 12 implants, implants designed to osseointegrate, and inclusion of data regarding implant and prosthetic performance. Data were analyzed using cumulative proportions of survival and success for both prosthetic types and for individual implants. Wilson score method was used to establish 95% confidence intervals for each population. The chi-square test for homogeneity was performed. Results: The literature search failed to identify any articles that directly compared survival or success of single implant-supported restorations with fixed partial dentures. Following the search criteria, and independent analysis by reviewers, 51 articles were identified in the implant literature (agreement, 95.42%; kappa coefficient, 0.8976), and 41 were identified in the fixed partial denture literature (agreement, 90.97%; kappa coefficient, 0.7524). Pooled success of single-implant restorations at 60 months was 95.1% (CI: 92.2%98.0%), while fixed partial dentures of all designs exhibited an 84.0% success rate (CI: 79.1%88.9%). Conclusions: This systematic review of the scientific literature failed to demonstrate any direct comparative studies assessing clinical performance of single implant-supported crowns and tooth-supported fixed partial dentures. The analysis suggested differences at 60 months between survival of implant-supported single crowns and natural tooth-supported fixed prostheses when resin-bonded and conventionally retained fixed prostheses were grouped. This difference disappeared when implant-supported single crowns were compared with conventionally retained fixed partial dentures at 60 months. For other time periods, direct comparative data were unavailable. Int J Oral Maxillofac Implants 2007;22(suppl):7195.

Key words: etched bonded dentures, fixed partial dentures, implant-supported restorations, implant-supported single crowns, implant-supported single-tooth restorations, resin-bonded fixed partial denture, success, survival


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