Clinical factors affecting adhesive fixed partial dentures: a 6-year study.
One hundred forty-one adhesive fixed partial dentures were placed under controlled conditions for a 6-year longitudinal study. The influence of location (anterior/posterior, maxilla/mandible), tooth preparation techniques (retentive/less invasive), and four different methods of metal conditioning (sandblasting/electrolytic etching and/or pyrolytic/tribochemical silane coating) on the survival rate was investigated. Failures (23 of 24) were caused by loss of adhesion at the metal-cement interface. The retentive tooth preparation reduced the risk of failure to almost one twentieth, but the intraoral location did not influence survival time. The effect of silane-coating on longevity was extremely positive and was not reflected by successful retainers.
Rammelsberg
P
P
University of Munich School of Dentistry, Department of Prosthodontics, Germany.
Pospiech
P
P
Gernet
W
W
D016009:Chi-Square Distribution; D001840:Dental Bonding / Q000379:methods*; D003781:Denture Retention; D003830:Denture, Partial, Fixed; D006801:Humans; D007180:Incisor; D008137:Longitudinal Studies; D008334:Mandible; D008437:Maxilla; D008963:Molar; D010043:Outcome and Process Assessment, Health Care; D016016:Proportional Hazards Models; D011475:Prosthesis Failure; D012044:Regression Analysis; D012821:Silanes; D013499:Surface Properties; D016019:Survival Analysis
D012821:Silanes