title: Survival rates of endodontically treated teeth restored with fiber-reinforced custom posts and cores: a 97-month study.
abstract: OBJECTIVE
  This study aimed to assess the long-term survival rates of polyethylene fiber-reinforced posts and cores used in endodontically treated teeth over a 97-month period.
  
  
  METHODS
  Sixty-nine patients from a private dental office who underwent endodontic treatment with coronoradicular fiber-reinforced restorations were selected and invited for evaluation. All teeth were restored with the same high-molecular-weight polyethylene fiber (Ribbond, Ribbond Inc) and resin composite cement (Enforce, Dentsply) post-and-core system by a single operator and then prepared and restored with complete cast crowns or direct resin composite. Survival functions of restorations were analyzed with Kaplan-Meier and log-rank tests (alpha = .05) and displayed according to the variable tooth location and material of the definitive restoration.
  
  
  RESULTS
  Four posts fractured among the 36 anterior restorations evaluated, and 2 posts fractured among the 73 posterior restorations. The mean overall survival estimate was 90.2 (+/- 3.7) months (95% Cl: 82.8-97.5). There were no differences between survival functions regarding tooth location or type of restorative material as variables (P> .05).
  
  
  CONCLUSIONS
  The results suggest that polyethylene fiber-reinforced posts with composite cores may be recommended for clinical use. Restorations evaluated in this study presented high survival rates after the 97-month follow-up period.
authors: Department of Operative Dentistry, Faculty of Dentistry, Federal University of Pelotas, Rio Grande do Sul, Brazil.
authors: Edno Moacir
authors: EM
authors: Piovesan
authors: Flávio Fernando
authors: FF
authors: Demarco
authors: Maximiliano Sérgio
authors: MS
authors: Cenci
authors: Tatiana
authors: T
authors: Pereira-Cenci
mesh_terms: D000328:Adult; D003442:Crowns; D019232:Dental Restoration Failure; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008137:Longitudinal Studies; D008297:Male; D011095:Polyethylenes; D011176:Post and Core Technique; D019279:Resin Cements; D012189:Retrospective Studies
chemical_list: C103503:EnForce-Sure Cure; D011095:Polyethylenes; C084063:RIBBOND; D019279:Resin Cements