不同体瓷厚度对Co-Cr烤瓷合金修复体颜色的影响  

Influence of Body Ceramic Thickness on Color of Co-Cr Dental Alloy

作　　者：陈春霞[1] 窦钟琦 樊洪[1] 巢永烈[3] 

机构地区：[1]天津市口腔医院,天津300041 [2]天津市红外激光专科医院,天津300192 [3]四川大学华西口腔医学院,成都610041

出　　处：《中国医药导刊》2010年第8期1391-1392,共2页Chinese Journal of Medicinal Guide

基　　金：教育部博士点基金项目(20020610066)

摘　　要：目的：研究DA9-7烤瓷支架钴铬合金不同体瓷厚度的变化规律.方法：使用接触式JY9800色度计研究DA9-7烤瓷支架钴铬含金、GiroBond NB钴铬合金和CWPA镍铬烤瓷合金和VITA VMK95 A色系瓷粉不同体瓷厚度时颜色变化规律.结果：体瓷层厚度增加,颜色参数L＊、a＊、b＊值均变小,0.50mm到1.00mm颜色变化明显,厚度大于1.00mm后,颜色变化减小.体瓷层厚度变化对于L＊、b＊值影响最大,对a＊值影响较小.结论：DA9-7Co-Cr合金用于烤瓷,修复体颜色可以达到美观的要求.Objective： The article was to investigate the fundamental rules of body ceramic thickness for DA9-7 Co-Cr dental alloy. Methods：A colorimeter （JY9800） was used to study the color variety of DA9-7 Co-Co dental alloy, Girobond NB Co-Co dental alloy, CWPA Ni-Cr alloy and VITA VMK95 A shade ceramic, finding the body thickness for different combination of ceramic and alloy. Results：Numerical values of L＊,a＊ and b＊ decreased with body thickness increased. Color varied apparently when body thickness increased from 0.50ram to 1.00ram, but color changes were unapparent when body thickness exceeded 1.00mm. Body thickness affected L＊,b＊ values greatly, but affected a＊ value slightly. Conelusions：DA9-7 Co-Cr dental alloy prosthesis can attain desirable esthetic effects.

关 键 词：钴铬合金 颜色测量 体瓷 

分 类 号：R783.1[医药卫生—口腔医学]