瓷层厚度对牙龈瓷颜色的影响  

Effect of Thickness and Shade of Porcelain of Ceramometal Restorations on Color of Gingival Porcelain

作　　者：孙俊[1] 罗云[1] 巢永烈[1] 

机构地区：[1]口腔生物医学工程教育部重点实验室,四川大学四川成都610041

出　　处：《华西口腔医学杂志》2005年第3期251-253,共3页West China Journal of Stomatology

基　　金：教育部高等学校博士学科点专项科研基金资助项目(20020610066)

摘　　要：目的了解牙龈瓷的颜色再现受瓷层厚度影响的变化规律。方法采用分光光度计(PR_650)测量不同厚度Shofuvintagepink龈色瓷,不同厚度牙本质瓷及不同颜色的遮色瓷和牙本质瓷对金瓷试件颜色改变的影响。结果当Shofuvintagepink龈色瓷厚度从0.3mm增加到0.9mm,金瓷试件的L值不断降低,a值不断升高;牙本质瓷厚度的增加使试件颜色向亮度低,偏红方向变化;不同颜色遮色瓷、牙本质瓷层厚度会导致龈色瓷表面的颜色改变。结论瓷层厚度可以影响牙龈瓷的颜色再现。Objective The purpose of this study was to evaluate the color changes of gingival porcelain through varying thickness and shade of porcelain of ceramometal restorations. Methods In this study a spectrophotometer (PR_650) was used for color analysis. The color changes of dentin porcelain and gingival porcelain with three varied thickness (0.3 mm, 0.6 mm and 0.9 mm) were investigated. In addition, the color variances of Shofu vintage porcelain shade A-2, A-3 and B-2 were tested. Results The results showed that decreased L* value of ceramometal restorations and increased a* value were due to the increase of the gingival porcelain thickness, color measurements showed the same trend as the increased dentin porcelain thickness and the opaque and dentin porcelain with different color affected the appearance of gingival porcelain. Conclusion The color of gingival porcelain would be changed with the differences of thickness and shade of porcelain of ceramometal restorations.

关 键 词：瓷 固定修复体 颜色 

分 类 号：R783[医药卫生—口腔医学]