Restorative Dentistry and Endodontics
- 제18권1호
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- Pages.103-113
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- 1993
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
복합레진 인레이의 내면처리와 합착용 시멘트의 종류에 따른 인장접합강도에 관한 연구
A STUDY ON THE TENSILE BOND STRENGTH OF COMPOSITE RESIN INLAYS ACCORDING TO THEIR INTERNAL SURFACE TREATMENT AND TYPES OF LUTING CEMENT
- Kim, Jin-Cheol (Department of Conservative Dentistry, College of Dentistry, Chosun University) ;
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Cho, Young-Gon
(Department of Conservative Dentistry, College of Dentistry, Chosun University) ;
- Hwang, Ho-Keel (Department of Conservative Dentistry, College of Dentistry, Chosun University)
- 발행 : 1993.04.25
초록
The purpose of this study was to evaluate the tensile bond strength of composite resin inlays according to the their internal surface treatment and types of luting cement and compared them with the conventional direct resin filling thchnique. Class II cavities were prepared in 50 extracted human molar teeth, and then equally divided into five groups. Group 1 : Cavities of control group were directly filled with P-50. Group 2 : Cavities of resin inlay group were luted with resin cement. Group 3 : Cavities of resin inlay group were luted with luting G-I cement. Group 4 : Cavities of resin inlay group were luted with resin cement after sandblasting. Group 5 : Cavities of resin inlay group were luted with luting G-I cement after sandblasting. All specimens were polished with same method and stored in normal saline for 24 hours before testing. An Universal Testing machine(Model No. AGS-100A, Shimadzu, Japan) was used to apply tensile loads in the vertical direction, and the force required for separation was recorded with a cross-head speed of 5mm/min and 100kg in full scale. The results were as follows : 1. The mean tensile bond strength was lowest in group luted with luting G-I cement, with measurements of
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