The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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SHEAR BOND STRENGTH OF RESIN ADHESIVE CEMENT TO ENAMEL AND Ni-Cr-Be ALLOY

접착성 레진 시멘트 와 법랑질 및 닉켈-크롬 합금 간의 전단결합강도

  • Lee, Sun-Hyung (Department of Prosthodontics, College of Dentistry, Seoul National University) ;
  • Yang, Jae-Ho (Department of Prosthodontics, College of Dentistry, Seoul National University) ;
  • Chung, Hun-Young (Department of Prosthodontics, College of Dentistry, Seoul National University) ;
  • Jang, Il-Seong (Department of Prosthodontics, College of Dentistry, Seoul National University)
  • 이선형 (서울대학교 치과대학 치과보철학 교실) ;
  • 양재호 (서울대학교 치과대학 치과보철학 교실) ;
  • 정헌영 (서울대학교 치과대학 치과보철학 교실) ;
  • 장일성 (서울대학교 치과대학 치과보철학 교실)
  • Published : 1997.07.01
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Abstract

This study was executed to measure the shear bond strength of Panavia EX and Panavia 21 when the Ni-Cr-Be alloy castings were cemented to the enamel surfaces with these cements. The cast metal plates of Ni-Cr-Be alloy were sandblasted and cemented to acid etched enamel surface with Panavia EX or Panavia 21. Their shear bond strength were measured with Instron Universal Testing machine. Within the limits of this study, following conclusions were withdrawn. 1. The mean shear bond strength were 26.85.7MPa, in Panavia EX and 28.35.2MPa, in Panavia 21. 2. t-Test revealed no statistical significance between two groups(.05 level) 3. Macroscopically, bond failures were revealed compound fracture at metal and enamel interfaces, in cases of both cements, as the cement attached partly on both metal and enamel surface.

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