Restorative Dentistry and Endodontics
- Volume 22 Issue 2
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- Pages.609-621
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- 1997
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
A STUDY ON THE SHEAR BOND STRENGTH OF LIGHT CURED GLASS IONOMER CEMENTS TO CONTAMINATED DENTIN
상아질 표면상태에 따른 광중합형 글래스아이오노머 시멘트의 전단결합강도에 관한 연구
- Kim, Kyoung-Hwa (Dept. of Conservative Dentistry, Division of Dentistry, Graduate School, Kyung Hee University) ;
- Park, Sang-Jin (Dept. of Conservative Dentistry, Division of Dentistry, Graduate School, Kyung Hee University)
- Published : 1997.09.30
Abstract
The purpose of this study was to evaluate the shear bond strength of three light-cured glass ionomer cements to blood contaminated bovine dentin. The materials used in this study were Fuji II LC, Dyract and Variglass VLC. The dentin conditioners were 10% polyacrylic acid, 10% maleic acid and 10% phosphoric acid. 180 lower anterior bovine teeth were selected in this study. The teeth were embedded in acrylic resin and were grounded with 320 to 600 grit silicon carbide paper to create a flat dentin surface. The teeth were divided into SIX groups. The experimental procedures in six groups were as follows; Group l(GF) : Samples bonded to dentin surface with Fuji II LC after 10% polyacrylic acid treatment. Group 2(BGF) : Samples bonded to dentin surface with Fuji II LC after 10% polyacrylic acid treatment and blood contamination. Group 3(MD) : Samples bonded to dentin surface with Dyract after 10% maleic acid treatment. Group 4(BMD) : Samples bonded to dentin surface with Dyract after 10% maleic acid treatment and blood contamination. Group 5(PV) : Samples bonded to dentin surface with Variglass VLC after 10% phosphoric acid treatment. Group 6(BPV) : Samples bonded-to dentin surface with Variglass VLC after 10% phosphoric acid treatment and blood contamination. Group 1,3 and 5 were classified into the control groups, while group 2,4 and 6 were classified into the experimental groups. Each group contained 30 samples. After 24 hours water storage at
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