title: Clinical evaluation of teeth restored with quartz fiber-reinforced epoxy resin posts.
abstract: OBJECTIVE
  This prospective clinical follow-up evaluated the acceptability of quartz fiber-reinforced epoxy posts used in endodontically treated teeth over a 30-month period.
  
  
  METHODS
  In 132 patients, 180 endodontically treated teeth were restored using AEstheti-Plus quartz-fiber posts. The posts were luted with the All-Bond 2 adhesive system and C&B Resin Cement according to the manufacturer's recommendations. The core was made with Core-Flo or Bis-Core, and all-ceramic crowns or metal-ceramic crowns were applied as final restorations. The parameters considered as clinical failure were displacement, detachment, or fracture of posts; core or root fracture; and crown or prosthesis decementation. Patients were reevaluated at 6, 12, 24, and 30 months.
  
  
  RESULTS
  One cohesive failure involving a margin of the composite core was observed after 2 weeks, and two adhesive fractures were seen after 2 months. These failures were located between the cement and the dentin walls of the canals. All three failures occurred during removal of the temporary crown. The percentage of failures was thus 1.7% over a 30-month period, but it was possible to successfully replace the restoration in all three failed cases.
  
  
  CONCLUSIONS
  Over a 30-month period, the rehabilitation of endodontically treated teeth using quartz-fiber posts showed good clinical results. No crown or prosthesis decementation was observed, and no post, core, or root fractures were recorded.
authors.affiliation: Department of Prosthetic Dentistry, School of Dentistry, University of Bologna, Italy. silviamalferrari@tiscalinet.it
authors.forename: Silvia
authors.initials: S
authors.lastname: Malferrari
authors.forename: Carlo
authors.initials: C
authors.lastname: Monaco
authors.forename: Roberto
authors.initials: R
authors.lastname: Scotti
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001896:Boron Compounds / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry; D003442:Crowns; D001840:Dental Bonding; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D017220:Dentin-Bonding Agents / Q000737:chemistry; D004853:Epoxy Resins / Q000737:chemistry; D005500:Follow-Up Studies; D006801:Humans; D016876:Metal Ceramic Alloys / Q000737:chemistry; D008689:Methacrylates / Q000737:chemistry; D008768:Methylmethacrylates / Q000737:chemistry; D008875:Middle Aged; D011176:Post and Core Technique; D011446:Prospective Studies; D011791:Quartz / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry; D013499:Surface Properties; D016019:Survival Analysis; D019553:Tooth, Nonvital / Q000628:therapy; D016896:Treatment Outcome
chemical_list: D001896:Boron Compounds; D017220:Dentin-Bonding Agents; D004853:Epoxy Resins; D016876:Metal Ceramic Alloys; D008689:Methacrylates; D008768:Methylmethacrylates; D019279:Resin Cements; D011791:Quartz; C100742:All-Bond 2; C049495:Super-bond