도재용착용 Ni-Cr 합금과 Co-Cr 합금의 열처리에 따른 전단결합강도 비교
Comparison of Shear Bond Strength of Ceramic Fused to Ni-Cr and Co-Cr Alloy by Heat Treatment
안재석, 고은경, 주규지,
소속 상세정보
안재석 ( Ahn Jae-Seok ) - 광주보건대학교 치기공과
고은경 ( Ko Eun-Kyoung ) - 광양보건대학교 치위생과
주규지 ( Joo Kyu-Ji ) - 광주보건대학교 치기공과
KMID : 0362120110330030185
Abstract
Purpose: This study was to evaluate the shear bond strength of the ceramic fused to Ni-Cr alloy(Bellabond plus) and Co-Cr alloy(Wirobond C) by heat treatment.
Methods: Metal specimens were divided into 5 groups for each alloy according to heat treatment conditions prior to porcelain application. Fifteen specimens from each group were subjected to a shear load a universal testing machine using a 0.1mm/min cross-head speed and one specimen from each group was observed with EDX line profile.
Results: The diffusion of metal oxide observed far in the specimen heat treated than no heat treated in the opaque layer. The shear bond strength measured highest to BP3(50.50MPa), WC2(50.49MPa) groups and measured lowest from BP1(35.1MPaa), WC1(39.66MPa) groups which were not treated with heat, and there was a significant difference (p<0.05).
Conclusion: The shear bond strength of Ni-Cr alloy(Bellabond plus) and Co-Cr alloy(Wirobond C) measured similar 5 groups all.
키워드
Ni-Cr Alloy; Co-Cr Alloy; Shear Bond Strength
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