도포법 및 침전법을 이용한 지르코니아의 색조 재현성 비교 연구
Comparative study of color reproducibility of zirconia using a dipping method and coating method
이희정, 김재홍, 김웅철, 김지환, 김혜영,
소속 상세정보
이희정 ( Lee Hee-Jung ) - 고려대학교 대학원 보건과학과
김재홍 ( Kim Jae-Hong ) - 고려대학교 대학원 보건과학과
김웅철 ( Kim Woong-Chul ) - 고려대학교 대학원 보건과학과
김지환 ( Kim Ji-Hwan ) - 고려대학교 대학원 보건과학과
김혜영 ( Kim Hae-Young ) - 고려대학교 대학원 보건과학과
KMID : 0362120130350030185
Abstract
Purpose: The aim of this study was to compare with color reproducibility of the coating method and dipping method using a colour liquid.
Methods: Two groups of square-shaped specimens (10 10 in diameter, 1.5 thickness) were prepared for analysis(n=15/group). The CM(Coating Method) group was fabricated as full zirconia specimens with the coating coloring method and Group DM(Dipping Method) was prepared as specimens of 0.7 mm-thick zirconia plate using the dipping coloring method and veneered with 0.8mm-thick porcelain. Color parameters were measured with ShadeEye NCC spectrophotometer and color differences were calculated using the equation E* = {( L*)2+( a*)2+( b*)2}1/2. Non-parametric statistical methods, the Mann-Whitney test, and the Kruskal-Wallis test were used to analyze the data. Type one error rate was set at 0.05.
Results: Color difference values larger than 7 were observed between specimens with the coating method and the dipping method, which were detectable difference in a clinical setting.
Conclusion: Cautious application of the coating coloring method in a clinical setting and further researches to
standardize the coating method are needed.
키워드
colour liquid; veneer; all-ceramic crown; color difference
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