모래분사법과 불투명 도재의 도포방법이 도재용착주조관의 전단결합강도에 미치는 영향
The Influence of Surface Treatment and Opaque Application Methods on the Bond Strength of PFM Restorations
김성민, 최성민, 정인성,
소속 상세정보
김성민 ( Kim Sung-Min ) - 부산가톨릭대학교 보건과학대학 치기공학과
최성민 ( Choi Sung-Min ) - 부산가톨릭대학교 보건과학대학 치기공학과
정인성 ( Chung In-Sung ) - 부산가톨릭대학교 보건과학대학 치기공학과
KMID : 0362120110330040339
Abstract
Purpose: This study was investigated the bonding strength of two kinds of Ni-Cr alloy with respect to the condition of surface treatment. Methods: The surface treatment was performed on the two kinds of Ni-Cr alloy (B alloy and R alloy) specimens, which were sandblasted with , , and aluminium oxide and were treated with opaque application (paste and wash opaque). The roughness on the surfaces of the specimens was observed. The metal-ceramic interfaces were analyzed with EPMA in order to ionic diffusion, and the shear test was performed. Results: The BA250 specimen, which has higher surface roughness, showed the highest bonding strength in B specimens. In R specimens, the bonding strength of RA110 specimen was the highest. Conclusion: B specimen formed a mechanical bond between metal-ceramic interfaces; however, in the case of R specimen, a chemical bond was formed between that interfaces. There was no significant statistical difference between the bonding strengths of two types of specimens (p>0.05).
키워드
surface treatment; opaque material; bond strength; interface analysis
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