결합재와 베니어세라믹이 금속-세라믹 보철물의 전단결합강도와 계면특성에 미치는 영향
The Influence of Bonding Strength and Interface Characteristics to Bonding Agent and Veneer Ceramics on Metal-Ceramic Prosthetics
김민정, 최성민, 정인성,
소속 상세정보
김민정 ( Kim Min-Jung ) - 부산가톨릭대학교 보건과학대학 치기공학과
최성민 ( Choi Sung-Min ) - 부산가톨릭대학교 보건과학대학 치기공학과
정인성 ( Chung In-Sung ) - 부산가톨릭대학교 보건과학대학 치기공학과
KMID : 0362120110330040349
Abstract
Purpose: In this study, for the reasons of observing the changes when using bonding agent with Ni-Cr alloy and Co-Cr alloy and using VM13 and Vintage MP ceramic which have the disparity in coefficient of thermal expansion, it is carried out to evaluate the characteristics of the bonding agent through the analysis of the interface between metal and ceramic and the analysis of bond strength by variable. Methods: The surface treatment was performed on the two kinds of alloy(Ni-Cr alloy and Co-Cr alloy) specimens, which were sandblasted and were treated with bonder application. The metal-ceramic interfaces were analyzed with EPMA in order to ionic diffusion, and the shear test was performed. Results: As a result of observation of metal-ceramic interfacial properties, it was observed that Cr atoms were spread from the alloy body to the ceramic floor in the specimen of Group B. It was also seen that Cr, W atoms were spread from the alloy body to the ceramic floor in the specimen of Group S. In consequence of observing Shear bond strength, it was calculated that the specimen of BSV was 27.75()MPa, BSM was 27.02()MPa, BCV was 30.20()MPa, BCM was 27.94()MPa, SSV was 20.83()MPa, SSM was 23.98()MPa, SCV was 32.32()MPa, and SCM was 34.54()MPa. Conclusion: In the metal-ceramic interface of Bellabond plus sample group, diffusion of Cr atoms was incurred and diffusion of C Cr atoms and W atoms in the sample group of was observed. Using bonding agent showed the higher bond strength than using the sand blasting treatment. In the Bellabond plus alloys, the specimen group with the use of binding materials showed higher shear bond strength, but didn’t show statistically significant differences (p>0.05). In the alloys, the specimen group with the use of binding materials showed higher shear bond strength and statistically significant differences(p<0.05). In terms of VM13 ceramic, it was in the Bellabond plus alloys that the high shear bond strength was showed, but there’s no statistically significant differences(p>0.05). In terms of Vintage MP ceramic, it was in the alloys that the high shear bond strength was showed and statistically significant differences(p<0.05). Metal-ceramic to fracture of the shear strength measurements and an analysis of all aspects of military usage fracture of the composite, respectively.
키워드
surface treatment; opaque material; bond strength; interface analysis
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