Clinical evaluation of resin-bonded gold alloy veneers

Statement of problem. Clinical performance of resin-bonded alumina-abraded type III cast gold alloy veneers has not been reported. Purpose. This retrospective study evaluated the survival of such restoratio ns for the management of tooth wear and other restorative problems. Material and method. This clinical study evaluated 25 patients between 14 a nd 60 years of age treated with a total of 158 cast gold veneers cemented w ith Panavia. Ex cement. Restorations placed between January 1990 and Februa ry 1996 (mean age 48 months) were evaluated. Factors, including age, gender , operator, site, design, the extent of dentin exposure, the presence of pr evious restorations, dynamic and static occlusion, rubber dam, cause, and. methods of interocclusal space creation, were evaluated with Cox regression . Survival probability was evaluated with Kaplen-Meier analyses. Significan ce was taken as P<.05. Results. Failures occurred for 7.6% of restorations in 28% of patients. Alu mina-abraded gold alloys cemented with Panavia Ex cement had all estimated 89% survival probability at 60 months using Kaplan-Meier analyses. The only variable to statistically influence survival was operator (P<.0001). Opera tor differences were due to a single operator who placed only 2 restoration s in the same patient, both of which filled unusually quickly. Conclusion. Resin-bonded alumina-abraded type III cast gold alloys can be s uccessfully used to restore both anterior and posterior teeth and were asso ciated with an estimated 89% survival probability at 60 months.