도재소부전장주조관에 사용되는 각종 합금의 주조성에 관한 비교연구
COMPARATIVE STUDY ON THE CASTABILITY OF VARIOUS ALLOYS FOR PORCELAIN-FUSED-TO-METAL CROWN
이태호,
소속 상세정보
이태호 ( Lee Tae-Ho ) - 서울대학교 대학원 치의학과 보철학
KMID : 0362419800180010087
Abstract
To compare the castability of various alloys popularly used in Korea for porcelain-fused-to-metal restorations, author selected Degudent G as precious alloy, J.P. 92 as semiprecious alloy and Vera Bond, Rexillium Ⅲ, Unit Bond, Fine Bond as nonprecious alloys. With nylon lines and gauge waxes, author made the wax patterns for the castability comparison test. In the same conditions, wax patterns were invested, burned out and cast. Author obtained the following results from this study. 1. The castability of Degudent G as precious alloy for porcelain-fused-to-metal crown and bridge was the best of all. 2. The castability of nonprecious alloys was less than Degudent G as precious alloy, but their differences were not large. 3. The castability of Rexillium Ⅲ is the best of all nonprecious alloys and that of Vera Bond, Unit Bond had nearly the same results. 4. Semiprecious alloy (J.P. 92) was less castable than nonprecious alloys.
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