광중합 레진의 색 안정성과 미세경도에 관한 연구
A study on the color stability and microhardenss of light curing resins
오세홍, 임미경, 조혜원, 이광희,
소속 상세정보
오세홍 ( ) - 원광대학교
임미경 ( ) - 원광대학교
조혜원 ( ) - 원광대학교
이광희 ( ) - 원광대학교
KMID : 0362319920170010126
Abstract
Tooth colored resin restorative materials are widely used in anterior teeth restorations. The color instability of resin was the main cause of failure in resin restorations. The purpose of this study was to investigate color stability and
microhardness
of serval visible light curing resins. Colorimetric measurements(Tokyo Denshoku Co., Japan) and microhardness tests(Matusuzawa, MXT 70, Japan) were made made on six composite resins before and after controlled immersion treatments. The six
composite
resins were BIS - FILM(BISCO, USA), Durafill (Kulzer, Germany), Helioprogess (VIVADENT, Germany), Palfique(TOKUYAMA SODA, Japan), Silux(3M, USA), Photoclearfil (KURATAY, Japen).
Six light curing resins showed significant color change after 2 weeks. Palfique exhibited the hightest dE* values and Helio progress presented the lowest dE* values. Photoclearfil showed the highest microhardness value. Durafill and Helio
progress
showed lower microhardness values. Microhardness values were decreased after 8 weeks in Bisfil, Palfique light, and Photoclearfil.
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