Restorative Dentistry and Endodontics
- Volume 18 Issue 1
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- Pages.215-226
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- 1993
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
AN ACCELERATED TEST FOR COLOR STABILITY AND OPACITY CHANGE OF LIGHT CURING COMPOSITE RESINS
광중합 복합레진의 색안정성 및 투명도 변화에 관한 가속시험
- Hwang, Inn-Nam (Department of Conservative Dentistry, College of Dentistry, Chonnam National University) ;
- Oh, Won-Mann (Department of Conservative Dentistry, College of Dentistry, Chonnam National University)
- Published : 1993.04.25
Abstract
Color stability of tooth colored restorative resins is an important factor, particularly in anterior teeth restoration. The purpose of this study was to evaluate the color stability and opacity change of several light curing composite resins. Specimens of eight composite resins(Prisma AP. H., Brilliant Enamel, Charisma, Durafil, Helio Progress, Herculite XR, P-50 and Silux Plus) were divided into two groups : In Group 1, the specimens were polymerized by visible light curing unit for 60 seconds on both sides and in Group 2, the post-cured specimens were heat tempered by light/heat curing unit for 45 units(about 18 min.). All specimens were stored in distilled water at
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