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Long-term outcomes on direct fiber reinforced composite fixed partial dentures: A 14-year practice-based study.
Andrea Roccuzzo1, Philippe Perrin2, Hendrik Meyer-Lueckel3
1Professor, Vice-chairman, Shanghai Perio-Implant Innovation Center, Institute of Integrated Oral, Craniofacial and Sensory Research, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China and Professor, College of Stomatology, Shanghai Jiao Tong University, National Center of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China and Privatdozent, Staff Member, Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.
Direct fiber-reinforced composite fixed partial dentures (DFRC-FPDs) show high survival and moderate success rates for replacing missing teeth. Factors like bruxism and composite type impact outcomes, but DFRC-FPDs offer a minimally invasive, long-term solution.
Area of Science:
- Dental Materials Science
- Restorative Dentistry
- Clinical Outcomes Research
Background:
- Direct fiber-reinforced composite fixed partial dentures (DFRC-FPDs) provide a minimally invasive, same-day tooth replacement option.
- Limited clinical data exists for DFRC-FPDs, particularly those utilizing intact enamel abutments.
Purpose of the Study:
- To evaluate the long-term clinical outcomes of DFRC-FPDs in a practice-based cohort.
- To identify clinical factors influencing the survival and success rates of DFRC-FPDs.
Main Methods:
- 153 DFRC-FPDs were placed in 120 patients by 3 dentists, using existing cavities or direct enamel bonding.
- Fiber-splints (Everstick C+B) were used for reinforcement.
- Multi-level Cox proportional hazard models analyzed factors affecting restoration longevity.
Main Results:
- With a mean 82-month follow-up, the cumulative survival rate was 88% and success rate was 60%.
- Annual failure rates were 1.7% for survival and 7.1% for success.
- Bruxism, extensive use of flowable composite resin, and molar location significantly reduced success and survival.
Conclusions:
- DFRC-FPDs demonstrate high survival and moderate success over 14 years.
- These restorations are a viable immediate, long-term option for replacing one to two missing teeth with minimal tooth preparation.
