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Volume 26 , Issue 2
March/April 2013

Pages 147–150

Treatment Outcomes with Removable Partial Dentures: A Retrospective Analysis

Peter Rehmann, Dr Med Dent/Katharina Orbach, Dr Med Dent/Paul Ferger, Dr Med Dent/Bernd Wöstmann, Dr Med Dent

PMID: 23476909
DOI: 10.11607/ijp.2959

Purpose: This retrospective clinical study aimed to evaluate the long-term outcomes of clasp-retained, metal-framework removable partial dentures (RPDs) and their clasped teeth, the influencing factors on survival, and the type and number of repairs needed during the observation period. Materials and Methods: The study is based on a convenience sample of 52 patients who received 65 RPDs with a total of 207 clasped teeth. The mean observation period was 3.11 ± 0.29 years (maximum: 10 years). Patient gender, prosthesis location (maxilla/mandible), number and distribution (Kennedy class) of abutment teeth, and impact of a continuous follow-up program on a favorable outcome probability were analyzed. Statistical analysis was performed using the Kaplan-Meier method (P < .05) in combination with Cox regression analysis. Results: During the observation period, 9.2% of the RPDs ceased to function and 5.8% of the abutment teeth were extracted. Mean RPD survival time was 8.07 ± 0.66 years, with a positive outcome probability of 90% after 5 years. Prosthesis location was the only parameter that significantly (P < .05) impacted this probability. Conclusion: Overall, the high survival probability and low extraction rate of the abutment teeth reported in this study indicate that RPDs designed according to hygienic pronciples are clinically successful. Int J Prosthodont 2013;26:147–150. doi: 10.11607/ijp.2959

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