vita 比色板色度探究.pdfVIP

中华口腔医学杂志 1996 年 7 月第 31 卷第 4 期 2·27 · V ita 比色板色度分析 吴效民　宋世卿 摘要　为了解V ita 比色板在临床应用的可靠性及合理性, 进行了以下实验: 从北京地区应用V i 瓷粉的各家医院随机选取临床常用比色板三套, 采用 5 型分光光度计及 1976 色度系 ta cs C IE LAB 统, 对其进行色度测试及数值分析并与中国人牙冠色度范围进行比较。结果表明: 各比色板比色片的 颜色稳定性较好, 各板之间同名比色片的平均色差多小于 15 个NBS 色差单位; 比色板各色度值范 围比中国人牙冠各色度值范围窄, 缺乏亮度值在 6956～ 8654 范围及饱和度较高的红、黄色调的比 色片。本结论可直接应用于临床, 口腔修复科医生了解掌握比色板的色度规律, 可依实际情况更合理 地应用, 制作更理想的修复体。 关键词　色　　比色板　　色差 Color analysis of V ita shade guide　　W u X iaom in , S ong S h iqing. S chool of S tom atology , B eij ing M ed ical U niversity , B eij ing 100081 Abstract　In o rder to understand the reliabilty of the V ita Shade Guide and m ake it mo re reson , . ably in app lying a series of tests w ere accomp lished T h ree V ita shade guides w ere selected in Bei . 1976 5 jing ho sp itals By using the international co lo r standard C IE LAB co lo r system and CS Spectro co lo rim eter to m easure, test and analyse the characteristics of the shade guides including the degree , , . : of co lo r co lo r distribution co lo r stability and co lo r difference T he results indicate T he tabs of each shade guide demonstrated the greaest co lo r stability; mo st of the average co lo r difference among the sam e num ber tabs of each guide are less than 1. 5 NBS and the co lo r range of shade guides are mo re lim ited than that of Ch inese teeth crow n.