Restorative Dentistry and Endodontics
- Volume 25 Issue 2
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- Pages.299-308
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- 2000
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
MICROLEAKAGE OF CL V COMPOSITE RESTORATIONS USING VARIOUS LIGHT CURING METHODS
광중합 복합레진 수복시 여러 광조사 방법에 따른 미세변연누출에 관한 연구
- Yang, Chol-Young (Dept. of Conservative Dentistry, College of Dentistry, Seoul National University) ;
- Yoo, Hyeon-Mee (Sungkyunkwan University School of Medicine, Department of Conservative Dentistry, The Institute of Oral Health Science, Samsung Medical Center) ;
- Kwon, Hyuk-Choon (Dept. of Conservative Dentistry, College of Dentistry, Seoul National University)
- Published : 2000.06.05
Abstract
The purpose of this in vitro study was to evaluate the microleakage of 5 curing methods in class V composite restorations which are composed of two-step light curing, pulse-delay cure, low curing-light intensity, moderate curing-light intensity and high curing-light intensity. In this study, class V cavities were prepared on buccal and lingual surfaces of 50 extracted human upper or lower molars on cementum margin. Single Bond adhesive and Z-100 shade A2 were applied for each group following the manufacture's instruction. The experimental teeth were randomly divided into 5 groups of 10 samples (20 surfaces) each. Group 1: two-step light curing; Group 2: pulse-delay cure; Group 3: low curing-light intensity; Group 4: moderate curing-light intensity; Group 5: high curing-light intensity. After 500 thermocycling between
Keywords
- Two-step light-curing;
- Pulse-delay cure;
- Curing-light intensity;
- Microleakage;
- Marginal adaptation;
- Class V restoration