Fixed partial dentures in an up to 8-year follow-up.
Information on the longevity of fiber-reinforced composite fixed partial dentures (inlay FPDs) should be considered in the selection of materials, operative techniques and patient instructions related to prognosis and long-term cost-effectiveness.


OBJECTIVE
This study evaluated the long-term survival of fiber-reinforced, adhesively-bonded composite prostheses placed in posterior teeth.


METHODS
Twenty-one patients that received adhesively bonded polyethylene inlay FPDs in posterior teeth were selected from a private practice dental office and invited to evaluation. Of the eligible 21 patients, 13 (mean age 50.3 ± 11.5 years) agreed to be enrolled as participants, providing 22 restorations, as several subjects presented more than one inlay FPD. One dentist placed all inlay FPDs using Ribbond as reinforcement and Tetric Ceram/Durafil or Charisma/Renamel 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 (α = 0.05).


RESULTS
The majority of restorations received A or B scores. Four (18.2%) inlay FPDs fractured among the 22 evaluated. The mean estimate survival rate was 7 years (95% CI: 5.9 to 8.1), and the overall percentage of survival was 81.8%. There were no significant differences (p>0.05) between composite combinations or tooth location considering all clinical aspects evaluated and survival functions.


CONCLUSIONS
Posterior fiber-reinforced fixed partial dentures exhibited acceptable clinical performance after a period up to 8 years.
Cenci
Maximiliano Sérgio
MS
Department of Operative Dentistry, Dental School, Federal University of Pelotas, Pelotas, RS, Brazil.
Rodolpho
Paulo Antônio da Rosa
PA
Pereira-Cenci
Tatiana
T
Del Bel Cury
Altair Antoninha
AA
Demarco
Flávio Fernando
FF
D000328:Adult; D001641:Bicuspid; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D000044:Dental Abutments; D003764:Dental Materials / Q000737:chemistry; D019232:Dental Restoration Failure; D017220:Dentin-Bonding Agents / Q000737:chemistry; D003779:Denture Design; D003834:Denture Precision Attachment; D016379:Denture, Partial, Fixed, Resin-Bonded; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D008963:Molar; D011095:Polyethylenes / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry; D011446:Prospective Studies; D016019:Survival Analysis
C084111:Charisma composite resin; D003188:Composite Resins; D003764:Dental Materials; D017220:Dentin-Bonding Agents; D011095:Polyethylenes; D011109:Polymethacrylic Acids; C084063:RIBBOND; C121818:Tetric ceram; C444445:renamel microfill; C115612:single bond; D017438:Bisphenol A-Glycidyl Methacrylate; C039734:Durafill