摘要
Abstract
Objective:To exam the performance of VITA Easyshade compact and provide a reference for clinical,and do some comparative studies on VITA Easyshade computer-aided and visual shade matching. Methods:The maxillary right central incisors from 40 volunteers were measured,two doctors( A and B) using visual shade matching and the other two doc-tors( C and D) using VITA Easyshade Computer-aided shade matching,that two weeks later by using the same method and re-cording the results. Forty vitro premolars were measured, taking these pictures at approximately standard environment in a self-made standard light black box,and treated with Photoshop,get the color parameters. The difference of color parameter were compared,the accuracy of two methods were analysed. Results:The consistency of A and B reached 67. 5%,C and D reached 92. 5%,and The repeatability of A,B,C and D was 70. 0%,65. 0%,87. 5% and 90. 0% respectively. There were statistically significant difference in the color parameters of the Luminosity(L),red(a*),yellow(b*),chroma(C),hue(H) and color difference(ΔE) between two methods,respectively. Conclusion:Compared with visual shade matching,VITA Easy-shade showed better consistency,repeatability and accuracy that can be used in clinical auxiliary.关键词
比色/视觉比色/VITAEasyshade电脑比色仪Key words
Shade matching/Visual shade matching/VITA Easyshade compact分类
医药卫生
