Clinical Outcome of Posterior Fiber-reinforced Fixed Partial Dentures: 8-year Follow-up

Objectives: Information on the longevity of fiber reinforced composite fixed partial dentures (FPDs) should be considered in the selection of materials, operative techniques and patient instructions related to prognosis and long-term cost-effectiveness. This study aimed to evaluate the long term survivals of fiber-reinforced adhesively bonded composite prostheses placed in posterior teeth. Methods: Patients that received adhesively bonded polyethylene FPDs in posterior teeth were selected from a private practice dental office and invited to evaluation. One dentist placed all FPDs using Ribbond as reinforcement and Tetric Ceram/Durafil or Charisma/Renamel-Micro composite combinations, according to manufacturer's instructions. Two independent calibrated operators performed the evaluation, using modified USPHS criteria. Survival functions of restorations were analyzed with Kaplan Meier and Log Rank test (a = .05) and displayed according to the variables material and teeth location. Results: The majority of restorations exhibited A or B scores for the USPHS criteria. Four FPDs fractured among the 22 FPDs evaluated. The mean estimate survival was 84 months (95% CI: 70.4 to 97.6). There were no differences between composites combinations or teeth location considering all clinical aspects evaluated and survival functions (p>0.05). Conclusion: The results of this study suggest that posterior fiber reinforced rehabilitation with the materials and techniques evaluated may be indicated for replacement of a single missing tooth in posterior region.