Restorative Dentistry and Endodontics
- 제24권2호
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- Pages.299-309
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- 1999
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
복합레진의 광중합 전·후와 shade guide의 색차 비교
COLOR DIFFERENCES BETWEEN RESIN COMPOSITES BEFORE- AND AFTER-POLYMERIZATION, AND SHADE GUIDES
- Chon, Yi-Ju (Department of Conservative Dentistry, College of Dentistry, Seoul National University) ;
- Cho, Sung-Shik (Department of Conservative Dentistry, College of Dentistry, Seoul National University) ;
- Um, Chung-Moon (Department of Conservative Dentistry, College of Dentistry, Seoul National University)
- 발행 : 1999.06.04
초록
The composite resin, due to its esthetic qualities, is considered the material of choice for restoration of anterior teeth. With respect to shade control, the direct-placement resin composites offer some distinct advantages over indirect restorative procedures. Visible-light-cured (VLC) composites allow dentists to match existing tooth shades or to create new shades and to evaluate them immediately at the time of restoration placement. Optimal intraoral color control can be achieved if optical changes occurring during application are minimized. An ideal VLC composite, then, would be one which is optically stable throughout the polymerization process. The shade guides of the resin composites are generally made of plastic, rather than the actual composite material, and do not accurately depict the true shade, translucency, or opacity of the resin composite after polymerization. So the numerous problems associated with these shade guides lead to varied and sometimes unpredictable results. The aim of this study was to assess the color changes of current resin composite restorative materials which occur as a result of the polymerization process and to compare the color differences between the shade guides provided with the products and the actual resin composites before- and after-polymerization. The results obtained from this investigation should provide the clinician with information which may aid in improved color match of esthetic restoration. Five light activated, resin-based materials (
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