The performance of conventional, fixed bridgework, retained by partial coverage crowns.
A retrospective study was carried out on 248 partial coverage retained fixed bridges, in 211 patients. All were inserted at an undergraduate dental clinic and their length of service ranged from 1 to 19 years. In 211 prostheses, on which current information was available a total of 20 (9.5%) bridges had failed. The reasons for failure were loss of retention and, to a lesser extent, caries. Using a LIFE TABLE of survival, it was calculated that the percentage of short span, partial veneer retained prostheses that would survive TEN years was 76.5% +/- 5.99% (standard error). This figure is comparable to that quoted for resin-bonded bridges, and hence would militate against the use of conventional partial coverage fixed retainers on intact teeth. Where abutment teeth are heavily restored, full coverage retainers provide a more predictable, long term result.
Quinn
F
F
Gratton
D R
DR
McConnell
R J
RJ
D000293:Adolescent; D000328:Adult; D000368:Aged; D003442:Crowns; D000044:Dental Abutments; D019232:Dental Restoration Failure; D003801:Dental Veneers; D003779:Denture Design; D003781:Denture Retention / Q000706:statistics & numerical data*; D003830:Denture, Partial, Fixed; D005260:Female; D006801:Humans; D015993:Life Tables; D008297:Male; D016876:Metal Ceramic Alloys; D008875:Middle Aged; D012189:Retrospective Studies; D016019:Survival Analysis
D016876:Metal Ceramic Alloys