DOI QR코드

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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 (부산가톨릭대학교 보건과학대학 치기공학과) ;
  • 최성민 (부산가톨릭대학교 보건과학대학 치기공학과) ;
  • 정인성 (부산가톨릭대학교 보건과학대학 치기공학과)
  • Kim, Sung-Min (College of Health Science, Catholic University of Pusan) ;
  • Choi, Sung-Min (College of Health Science, Catholic University of Pusan) ;
  • Chung, In-Sung (College of Health Science, Catholic University of Pusan)
  • 투고 : 2011.11.07
  • 심사 : 2011.12.28
  • 발행 : 2011.12.30

초록

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 $50{\mu}m$, $110{\mu}m$, and $250{\mu}m$ 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

참고문헌

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