title: Survival of glass fiber post restorations over 5 years.
abstract: OBJECTIVE
  To evaluate the survival of glass fiber reinforced composite post (GFP) restorations and to identify risk factors for restoration failure.
  
  
  METHODS
  GFPs of three consecutively placed post systems, two tapered and one parallel-sided, were adhesively luted and the core was built with a resin composite. Teeth served as abutment teeth according to the prosthetic treatment plan. 149 GFP in 121 patients (age: 53 +/- 15 year; 50 men; 71 women) were followed for 5-79 months (mean +/- SD: 50 +/- 21 months). Cox proportional hazards models were used to evaluate the association between several clinical variables and the failure rate.
  
  
  RESULTS
  After exclusion of endodontic failures (n = 3), significantly higher failure rates were found for restorations of anterior teeth compared to posterior teeth (hazard regression (HR): 2.8; 95% confidence interval (CI): 1.4; 5.8; P = 0.004). Restorations in teeth with no proximal contacts compared to at least one proximal contact, single crowns compared to fixed partial dentures and less than two remaining cavity walls had a HR of 2.4 (CI: 0.8-7.1), 2.4 (CI: 0.6-8.7), and 1.5 (CI: 0.6-3.8), respectively. However, these correlations were not statistically significant (P > 0.05).
authors.affiliation: Department of Prosthodontics and Material Sciences, University of Leipzig, Nürnberger Strasse 57, D-04103, Leipzig, Germany. micha.naumann@gmx.de
authors.forename: Michael
authors.initials: M
authors.lastname: Naumann
authors.forename: Sven
authors.initials: S
authors.lastname: Reich
authors.forename: Frank P
authors.initials: FP
authors.lastname: Nothdurft
authors.forename: Florian
authors.initials: F
authors.lastname: Beuer
authors.forename: Jörg F
authors.initials: JF
authors.lastname: Schirrmeister
authors.forename: Thomas
authors.initials: T
authors.lastname: Dietrich
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015331:Cohort Studies; D003188:Composite Resins / Q000737:chemistry; D003442:Crowns; D000044:Dental Abutments; D003738:Dental Cements / Q000737:chemistry; D003764:Dental Materials / Q000737:chemistry*; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D003830:Denture, Partial, Fixed; D005260:Female; D005500:Follow-Up Studies; D005898:Glass / Q000737:chemistry*; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D011176:Post and Core Technique / Q000295:instrumentation*; D011446:Prospective Studies; D012307:Risk Factors; D016019:Survival Analysis; D019231:Tooth Preparation, Prosthodontic / Q000379:methods
chemical_list: D003188:Composite Resins; D003738:Dental Cements; D003764:Dental Materials; C009753:fiberglass