基于CIECAM02色貌模型的义齿基托树脂色差评价  

Color-difference evaluation of denture base resin based on CIECAM02 color appearance model

作　　者：郭志敏[1] 林红[1] 郑刚[1] 白伟[1] 

机构地区：[1]北京大学口腔医学院.口腔医院口腔材料研究室,北京100081

出　　处：《北京大学学报（医学版）》2013年第1期101-104,共4页Journal of Peking University:Health Sciences

摘　　要：目的:探讨采用仪器法评价义齿基托树脂色差的最佳色差公式。方法:使用SP62分光光度测色仪对老化时间不同的35个义齿基托树脂片进行测量,将测量结果分别用CMC、DE2000、CAM02-LCD、CAM02-SCD、CAM020-UCS色差公式进行色差计算,将计算结果与视觉实验所得视觉色差ΔV进行比较,并用PF/3性能因子、STRESS值以及F检验对各公式进行检验,找出最适合计算义齿基托树脂色差的公式。结果:CMC、DE2000、CAM02-LCD、CAM02-SCD、CAM020-UCS的PF/3性能因子分别为22.448、22.220、22.840、21.760、22.049,STRESS值分别为0.205、0.228、0.260、0.192、0.240。结论:PF/3性能因子、STRESS值以及F检验所得结果的综合比较显示,各公式预测义齿基托树脂色差的准确性顺序为:CAM02-SCD最优,其次为CMC,DE2000和CAM02-UCS再次之,DE2000略优于CAM02-UCS,CAM02-LCD最差。Objective： To compare the following color-difference equations ： CMC, DE2000, CAM02- LCD, CAM02-SCD, CAM020-UCS, and to search for the most appropriate one to evaluate denture base resin. Methods： Thirty five denture based resin pieces which were aging during different time were measured using SP62 spectrophotometer and the color-difference was calculated using the above equa- tions. PF/3, STRESS, and F-test of every calculation result were compared. Results： PF/3 of CMC, DE2000, CAM02-LCD, CAM02-SCD, CAM020-UCS were： 22. 448, 22. 220, 22. 840, 21. 760, 22. 049 ; STRESS of those were ： 0. 205, 0. 228, 0. 260, 0. 192, 0. 240. Conclusion： By comprehensive comparison of PF/3, STRESS and F-test, CAM02-SCD is the most appropriate equation for denture base resin, which was followed by CMC. The scatter diagram of color-difference showedthat color difference measured by instrument method is more objective and accurate compared with human eyes.

关 键 词：义齿基托 树脂黏固剂 色差评价 美学 牙科 

分 类 号：R783.3[医药卫生—口腔医学]