Effect of stain firing on the translucency and the color of all-ceramic CAD/CAM restorations
- VernacularTitle:染色烧结次数对CAD-CAM全瓷半透明性和颜色的影响
- Author:
Hai XU
;
Yining WANG
;
Wenzhong XING
- Publication Type:Journal Article
- Keywords:
Computer-aided design;
Stain firing;
Translucency;
Color
- From:
Journal of Practical Stomatology
2000;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the influence of repeated stain firing on the translucency and the color of all-ceramic CAD/CAM restorations.Methods:16 all-ceramic sample disks, including 8 of A1C and 8 of A3C in the size of 15 mm?10 mm?1 mm were fabricated and fired for 5 times. Color was measured before and after stain firing using a colorimeter.Translucency was evaluated by determining the contrast ratio(CR), and changes in color were evaluated by determining color difference △E*ab,hue angle h_ ab *,chroma C_ ab and brightness L*.Results:The translucency of A3C was greater than that of A1C.More than 4 time firing increased CR value of both A1C and A3C samples(P
