접착성 레진 시멘트와 법랑질 및 닉켈-크롬 합금 간의 전단결합강도
SHEAR BOND STRENGTH OF RESIN ADHESIVE CEMENT TO ENAMEL AND NI-Cr-Be ALLOY
이선형, 양재호, 정헌영, 장일성,
소속 상세정보
이선형 ( Lee Sun-Hyung ) - 서울대학교 치과대학 치과보철학교실
양재호 ( Yang Jae-Ho ) - 서울대학교 치과대학 치과보철학교실
정헌영 ( Chung Hun-Young ) - 서울대학교 치과대학 치과보철학교실
장일성 ( Jang Il-Seong ) - 서울대학교 치과대학 치과보철학교실
KMID : 0362419970350020365
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 metsl 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 withgdrawn. 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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