모래분사법과 불투명 도재의 도포방법이 도재용착주조관의 전단결합강도에 미치는 영향
The Influence of Surface Treatment and Opaque Application Methods on the Bond Strength of PFM Restorations
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 50 , 110 , and 250 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
목차
[Abstract] Ⅰ. 서론 Ⅱ. 연구 방법 1. 실험 재료 2. 실험 방법 Ⅲ. 결과 1. 표면 평균 조도 2. 금속-도재 계면특성 관찰 3. 전단결합강도 4. 파절면 분석 Ⅳ. 고찰 Ⅴ. 결론 참고문헌