Restorative Dentistry and Endodontics
- Volume 17 Issue 1
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- Pages.104-114
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- 1992
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
AN EXPERIMENTAL STUDY ON SHEAR BOND STRENGTH OF GLASS IONOMER CEMENT TO DENTIN SURFACE FOLLOWING SURFACE CONTIONING
상아질 표면처리가 글라스 아이오노머 시멘트의 결합강도에 미치는 영향에 관한 연구
- Lee, Kwang-Woo (Dept. of Conservative Dentistry, College of Dentistry, Dankook University) ;
- Hong, Chan-Ui (Dept. of Conservative Dentistry, College of Dentistry, Dankook University) ;
- Shin, Dong-Hoon (Dept. of Conservative Dentistry, College of Dentistry, Dankook University)
- Published : 1992.03.31
Abstract
The purpose of this study was to evaluate the shear bond strength of glass ionomer cement(Ketacfil, ESPE, Co.) against dentin surface which had been treated with surface conditioning agents(distilled water, 5% sodium hypochlorite solution, Ketac - conditioner, 40% polyacrylic acid). In this study, 60 human molars with sound and healthy crown portion which were previously extracted for orthodontic or periodontal problem. The dentin surfaces of these teeth were exposed with wet trimmer and polished with 150 - grit and 600 - grit silicon carbide paper and the teeth were divided into four groups(15 teeth per group) according to the following surface conditioning methods. Group I : Surface treatment with distilled water as control group. Group II : Surface conditioning with 5% sodium hypochlorite solution. Group III : Surface conditioning with Ketac conditioner. Group IV : Surface conditioning with 40% polyacrylic acid. The shear bond strengths were measured by Autograph(Shimatzu Co. Japan). The result of the evaluations were then subjected to statistical analysis using one - way analysis of variance and Duncan test and the results were as follows : 1. The shear bond strength accrding to the dentin surface conditioning conditions was highest in Ketac conditioner group, with measurements of
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