Restorative Dentistry and Endodontics
- Volume 23 Issue 1
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- Pages.487-501
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- 1998
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
TENSILE STREGNTH BETWEEN MACHINABLE CERAMIC AND DENTIN CEMENTED WITH LUTING COMPOSITE RESIN CEMENTS
합착용 복합레진시멘트로 합착한 Machinable Ceramic과 상아질 사이의 인장강도에 대한 실험적 연구
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Cho, Byeong-Hoon
(Dept. of Conservative Dentistry, College of Dentistry, Seoul National University)
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조병훈
(서울대학교 치과대학 치과보존학교실)
- Published : 1998.04.07
Abstract
In the case of CAD/CAM ceramic inlay restorations, if isthmus width is widened too much, it may cause fracture of remaining tooth structure or loss of bonding at the luting interface because of excessive displacement of buccal or lingual cusps under occlusal loads. So to clarify the criterior of widening isthmus width, this study was designed to test the tensile bond strength and bond failure mode between dentin and ceramic cemented with luting composite resin cements. Cylindrical ceramic blocks(Vita Cerec Mark II, d=4mm) were bonded to buccal dentin of 40 freshly extracted third molars with 4 luting composite resin cements(group1 : Scotchbond Resin Cement/Scotchbond Multi-Purpose, group2 : Duolink Resin Cement/ All-Bond 2, group3: Bistite Resin Cement/Ceramics Primer, and group4:Superbond C&B). Tensile bond test was done under universal testing machine using bonding and measuring alignment blocks(
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