ShadeEye (R)NCC system을 이용한 Vita CAD/CAM Ceramic Block의 크기에 따른 색조 일치성 비교연구
Comparative Study of Color Correspondence According to Size of Vita CAD/CAM Ceramic Block Using ShadeEye-Ncc(R) System
Purpose: The purpose of this study was to compare color correspondence of different sizes of Vita Mark Ⅱ and TriLuxe Feldspar blocks. Methods: The three commercially available shades(1M2, 2M2, 3M2) of Mark Ⅱ& TriLuxe blocks for the CEREC CAD/CAM system were examined. For each of three colors, three different sizes were tested, 5 blocks each. The measurements were made using a spectrophotometer equipped with an integrating sphere using the CIE L*, a*, b* colorimetric system. Results: The L*, a*, b* value of Vita Mark Ⅱ ceramic block showed significantly higher than TriLuxe ceramic block(p<0.05). In comparing the Vita Mark Ⅱ specimen of the three different shade, color differences between materials(ΔE*) showed the lowest value of 2.09, and the highest was 2.24. ΔE* values of the materials of Vita Mark Ⅱ were higher than 2. As the size of ceramic block differed, the color correspondence of Vita Mark Ⅱ showed statistically significant difference but, this result is clinically acceptable. Conclusion: All the different sizes of the different shades of Vita TriLuxe blocks for the CEREC system showed the high degree of color correspondence necessary in industrially prefabricated CAD/CAM blocks. The results of the present study suggested that it would be necessary to establish the reproducible and constant color specification system for an esthetic restoration.
목차
[Abstract] Ⅰ. 서론 Ⅱ. 연구 방법 1. 실험 재료 2. 측정 기구 3. 측정 방법 4. 색차(ΔE*)값 의 계산 5. 통계 처리 Ⅲ. 결과 1. Vita Mark Ⅱ의 L*, a*, b* 수치분석 2. Vita TriLuxe의 L*, a*, b* 수치분석 Ⅳ. 고찰 Ⅴ. 결론 참고문헌