대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)
- 제39권1호
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- Pages.37-48
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- 2001
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
잇솔질과 열처리가 세로머의 색안정성에 미치는 영향
COLOR STABILITY OF CEROMERS AFTER THERMOCYCLING AND BRUSHING
- Yi Yang-Jin (Department of Prosthodontics, College of Dentistry, Kangnung National University) ;
- Cho Lee-Ra (Department of Prosthodontics, College of Dentistry, Kangnung National University)
- 발행 : 2001.02.01
초록
Ceromers, new indirect resin system, are now being adopted for esthetic restorations. Despite of its translucency and good color matching, color stability after long-term use was unknown till now. This in vitro study was designed to evaluate color stability of some ceromers when subjected to brushing after thermocycling. Three types of ceromers: Scupture, Targis, Artglass and a direct resin system, Z100 were prepared to disks 12 mm in diameter, 2.5 mm in thickness. All specimens were polished, and Sculpture and Targis specimens were divided two groups, respectively. Then, half of them were glazed according to manufacturer's instructions. All specimen were brushed 20,000 times after 10,000 cycle thermocycling. Color was measured with spectrophotometer after 1,000, 3,000, 10,000 times thermocycling and 20,000 time brushing, respectively. Color difference (