원문정보
Comparative study of color reproducibility of zirconia using a dipping method and coating method
초록
영어
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.
목차
Ⅰ. 서론
Ⅱ. 연구 방법
1. 실험 재료
2. 시편 제작
3. 분광측색장치에 의한 측정
4. 색조차이(ΔE*)의 계산
5. 통계 분석
Ⅲ. 결과
1. 착색용액 처리방법에 따른 L*, a*, b*값 분석
2. 착색용액 처리방법에 따른 ΔE*값 분석
Ⅳ. 고찰
Ⅴ. 결론
REFERENCES