人工牙龈比色板对视觉比色结果的影响  

The effect of shade-guide with Gumy on visual shade matching

作　　者：高承志[1] 刘海山[1] 

机构地区：[1]北京大学人民医院口腔科,100044

出　　处：《现代口腔医学杂志》2006年第6期589-590,597,共3页Journal of Modern Stomatology

摘　　要：目的通过分析使用带有或不带有人工牙龈的比色板比色准确率,判断人工牙龈对视觉比色的影响。方法首先用测色加视觉的方法筛选出颜色最接近之色标配成实验用比色板,选出7个色标并遮盖色标号作为比色目标,5年以上修复临床经验医师10人为受试者,在统一条件下对7个比色目标进行3组视觉比色,分别为比色目标与比色板均不使用人工牙龈(简称A组),仅比色目标有人工牙龈(简称B组),比色目标与比色板均使用人工牙龈(简称C组)。分别记录比色结果正误数量并计算正确率。结果经统计检验B组与A组、B组与C组之间都有极显著性差异(P<0.01),A组与C组之间则无显著性差异(P>0.05),即在比色目标有人工牙龈情况下,使用配有人工牙龈的色标时比色正确率远高于不使用人工牙龈的色标。结论使用人工牙龈有利于临床上取得正确比色结果,它可以通过部分弥补了牙龈与牙齿颜色的反差对比、使色标更能反映就位后的最终颜色、去除干扰等发挥作用。Objective To appreciate the effect of Gumy on visual color matching by comparing the matching accuracy using the shade- guides with and without Gumy differently. Methods Two shade - guides with the minimum color difference were selected by means of color measuring with spectrum photometer. Seven color codes were used to be color matching objects and the marks were covered. Ten prothodontist with over 5 - year clinical experience carried out color matching at the same circurhstanee in 3 conditions that both objects and shade- guide without Gumy （Group A）, only objects with Gumy（Group B）, both objects and shade - guide with Gumy. The color matching results were recorded and used to compute correct percentage. Results The correct percentage in group B （50 % ） were significantly lower than that of Group A （81.82 % ） and group C （ 77.27 % ） （ P 〈 0.01）, and no difference was found between group A and group C. Conclusion Gumy can improve the color matching condition and increase correct percentage of color matching.

关 键 词：人工牙龈 比色板 比色 

分 类 号：R783.1[医药卫生—口腔医学]