Fifteen-year survival of resin-bonded vs full-coverage fixed dental prostheses

T. Yoshida, Y. Kurosaki, A. Mine, A. Kimura-Ono, T. Mino, S. Osaka, S. Nakagawa, K. Maekawa, T. Kuboki, H. Yatani, A. Yamashita

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


Purpose: We clarified cumulative survival and event-free rates of resin-bonded fixed dental prostheses (RBFDPs) and compared them to those of fixed dental prostheses (FDPs) to refine risk factors for non-survival/event and use of tooth extraction after the period of non-survival/event. Methods: Study subjects were selected among all patients who consecutively attended the Fixed Prosthodontic Clinic of Okayama University Hospital. Eligible patients were those who received 3-unit metal-framed 2-retainer (wing–wing) RBFDPs or conventional full-coverage FDPs (RBFDPs/FDPs: 129/177 prostheses). Data were analyzed by Kaplan–Meier analysis with the log-rank test, Mann–Whitney test, chi-square test, and Cox proportional hazards analysis. Results: The 15-year cumulative survival rates were 66.5% for the RBFDP group and 61.6% for the FDP group, which were not significantly different (p = 0.59). The 15-year cumulative event-free rates were 53.4% for the RBFDP group and 59.2% for the FDP group, which were not significantly different (p = 0.52). No significant risk factors related to non-survival and event-free of RBFDPs/FDPs were identified in the analysis model using treatment method, sex, age, number of remaining teeth, and treatment site as explanatory variables. The number of cases in which RBFDPs/FDPs resulted in non-survival due to abutment tooth extraction was significantly lower in RBFDPs (p < 0.01). Further, the abutment tooth as a non-vital tooth was identified as a risk factor for RBFDPs/FDPs resulting in non-survival due to abutment tooth extraction. Conclusions: The present study is the first to indicate RBFDP as a prosthetic treatment option which should be selected for patients with slight or no abutment tooth decay.

Original languageEnglish
Pages (from-to)374-382
Number of pages9
JournalJournal of Prosthodontic Research
Issue number3
Publication statusPublished - Jul 2019


  • Adhesion bridge
  • Adhesive dentistry
  • Bonding
  • Clinical study
  • Fixed denture
  • Longevity

ASJC Scopus subject areas

  • Oral Surgery
  • Dentistry (miscellaneous)


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