An up to 15-year longitudinal study of 515 metal-ceramic FPDs: Part 1. Outcome.

摘要: Purpose This study reports on the outcome of 515 metal-ceramic fixed partial dentures (FPD) involving 1,209 abutments and 885 pontics placed by one operator in a specialist prosthodontic practice between January 1984 December 1997. Materials methods Clinical laboratory protocol was kept constant as much practical. Each FPD abutment given subjective prognostic rating at time cementation. Patients were recalled 1993 (review 1) 1998 2). examination author covered 85% 342 FPDs review 1 82% 2. At 2, 37% had been clinical service for 5 to 10 years (group b), 34% 15 c). An objective classification used assess outcome. Results failure rates 2%, 7%, 11% groups a, b, c, respectively. There significant increase rate group c 2 (11%) compared with (5%). Cumulative survival analysis indicated that have an expected 96%, 87%, 5, 10, years, The applied proved more accurate increased. Outcome not related number units. Cantilevered FPDs, nonvital abutments, anterior significantly greater rates. Of initially vital 2% subsequently endodontically treated. Conclusion Tooth-supported when described is applied.