title: Ten-year survival of anterior all-ceramic resin-bonded fixed dental prostheses.
abstract: OBJECTIVE
  To evaluate the long-term outcome of all-ceramic resin-bonded fixed dental prostheses (RBFDPs) made with a two-retainer design or a cantilever single-retainer design.
  
  
  METHODS
  Overall, 38 anterior RBFDPs were made from a glass-infiltrated alumina ceramic (In-Ceram). Sixteen RBFDPs had a two-retainer design, while 22 RBFDPs had a cantilever single-retainer design. Phosphate monomer containing luting agents were used either after silica coating and silanation or after air-abrasion only. The mean observation time in the two-retainer group was 120.2 months and in the single-retainer group 111.1 months.
  
  
  RESULTS
  No restoration debonded. In the two-retainer group unilateral and bilateral fractures of the connectors occurred. In the case of unilateral fracture, the pontic remained in situ as a cantilever RBFDP for several years. In the single-retainer group, only one FDP fractured and was lost 48 months after insertion. The 10-year survival rate was 73.9% in the two-retainer group and 94.4% in the single-retainer group. When unilateral fracture of a FDP was taken as a criterion for failure, the 10-year survival rate decreased to 67.3% in the two-retainer group.
  
  
  CONCLUSIONS
  Cantilever all-ceramic RBFDPs are an adequate alternative to two-retainer RBFDPs.
authors.affiliation: Department of Prosthodontics, Christian-Albrechts University, Kiel, Germany. mkern@proth.uni-kiel.de
authors.forename: Matthias
authors.initials: M
authors.lastname: Kern
authors.forename: Martin
authors.initials: M
authors.lastname: Sasse
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry; D001840:Dental Bonding / Q000379:methods; D003738:Dental Cements / Q000737:chemistry; D045662:Dental Etching / Q000379:methods; D003776:Dental Porcelain / Q000737:chemistry*; D019232:Dental Restoration Failure; D003801:Dental Veneers; D003779:Denture Design; D003781:Denture Retention / Q000295:instrumentation; D016379:Denture, Partial, Fixed, Resin-Bonded; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D010710:Phosphates / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry; D012821:Silanes / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D013499:Surface Properties; D016019:Survival Analysis; D016896:Treatment Outcome
chemical_list: D003738:Dental Cements; C483026:In-Ceram Alumina; C485633:In-Ceram Zirconia; C093719:Panavia TPN-S; D010710:Phosphates; D019279:Resin Cements; C076811:Rocatec; D012821:Silanes; C483027:vitadur alpha; D003776:Dental Porcelain; D012822:Silicon Dioxide; C023506:Glass ceramics; D000537:Aluminum Oxide