金-瓷修复体对光电色度计测色的影响  

Effect of the metal ceramic restoration on detecting color using photoelectric colorimeter

作　　者：王少海[1] 高建勇[2] 唐卫忠[1] 汪大林[1] 

机构地区：[1]上海第二军医大学长海医院口腔科,200433 [2]上海第九人民医院口腔修复科

出　　处：《实用口腔医学杂志》2007年第6期774-776,共3页Journal of Practical Stomatology

基　　金：国家自然科学基金资助(编号:30672344)

摘　　要：目的:探讨具有金属基底的金-瓷修复体对光电色度计测色的影响,以及与天然牙的光学特性是否一致,能否进行测色比较。方法:定制的有金属基底与无金属基底的金-瓷修复体比色板,利用相同的光电色度计进行颜色样本色度值测量,并与同色系天然牙相同部位进行色差分析。结果:有金属基底的定制比色片色差值均大于同名色系的天然牙牙冠中部色差值,ΔE均值为13.52,两者之间差异均有显著性(P<0.01),光学特性差异较大。而同名色系的天然牙与无金属基底的定制比色片的色差值较小,ΔE均值为2.41。结论:用光电色度计对金-瓷修复体颜色进行测量,具有一定的局限性,不能将有金属基底的修复体与无金属基底的修复体或天然牙进行测色比较。Objective： To detect whether the metal base of the metal-fused-to-ceramic restoration have the same color performance and can be tested as natural teeth, and to evaluate whether they have effect on the color value determination by means of the photoelectrometer. Methods： Two kinds of shade guides of metal ceramic restoration were measured by photoelectric colorimeter, and color difference are analyzed compared with natural teeth of the same color. Results：The empfindung （color difference） of the shade guides with or without metal base and natural teeth is significantly different （ P 〈0.01 ）, and the mean value was 13.52. The result suggests that optical feature of the two material has significant difference. However the empfindung of the metal-free shade guides and natural teeth was similar and its mean value was 2.41. Conclusion： This results reveal the limitation of detecting color difference of natural teeth and metal ceramic restoration with photoelectric colorimeter. The color value of the restoration with or without metal base, or natural teeth could not be compared, because they had different optical filtration.

关 键 词：金-瓷修复体 光电色度计 颜色 

分 类 号：R783.3[医药卫生—口腔医学]