不同配色方案对复合树脂双层修复颜色的影响  

Effects of Different Shade Matching Methods on the Color of Double-Layered Resin Composite Restorations

作　　者：刘洋阳[1] 韦家强 王璐[1] 徐镔亭[1] 

机构地区：[1]重庆医科大学附属口腔医院.口腔疾病与生物医学重庆市重点实验室,重庆401147 [2]武汉大学口腔医学院修复科,湖北武汉430079

出　　处：《口腔医学研究》2016年第8期804-807,共4页Journal of Oral Science Research

基　　金：2014年重庆市医学科研计划项目(编号:20142054);2015年渝中区科技计划项目(编号:20150125);2016年重庆高校创新团队建设计划资助项目

摘　　要：目的:研究不同牙釉质/牙本质树脂配色方案对复合树脂双层修复颜色效果的影响。方法:选择2个品牌(Z350,NG)按照牙釉质色与牙本质色一致(方案1),牙本质色比牙釉质色加深一个色号(方案2),牙釉质色统一为A3色(方案3)3种配色方案制作釉质层1.0mm厚双层修复树脂试样,分光光谱仪测量获取试样颜色参数并计算与Vita经典比色板的色差(ΔE)。结果:2种树脂品牌及3种配色方案的ΔE值均有统计学差异(P<0.05)。Z350的ΔE值均小于NG。对于A1色,方案一的△E值最小;对于A2色,方案1、2的ΔE值小于方案3。结论:对于釉质层1.0mm厚的树脂双层修复,Z350颜色与比色板颜色更接近;对于A1色,牙釉质色与牙本质色一致的传统配色方案与A1色比色板颜色最接近;对于A2色,传统方案与牙本质色比牙釉质色深一个色号的配色方案与A2色比色板颜色更接近。Objective：To investigate the effects of different enamel/dentin composite shade matching methods on the resultant color of double-layered resin composite restorations.Methods：Two commercial resin composites（Z350 NG）were included in this study.Resin specimens of each brand were prepared following 3double-layered color matching methods：（1）dentin shade and enamel shade with the same shade but different translucencies;（2）dentin shade was darker than enamel shade;（3）enamel shade with A3 shade.The color coordinates of all the specimens and the corresponding Vita Classical Shade tabs were measured by a spectrophotometer.Color differences（ΔE）between the specimens and the corresponding Vita Classical Shade tabs were calculated.Results：There were significant differences between two commercial resin composites（P0.05）.ΔE values of Z350 were significantly lower than those of NG.Regarding to A1 shade,method 1had the lowestΔE value.With respect to A2 shade,theΔE values of method 1and 2were lower than method 3.Conclusion：Z350performs better results in matching the shade guide in contrast to NG.Method 1is the best enamel/dentin composite shade matching methods for A1 shade.For A2 shade,method 1and method 2are better than method 3.

关 键 词：复合树脂 双层修复 配色方案 分光光谱仪 色差 

分 类 号：R783.1[医药卫生—口腔医学]