采用分光光度计比较种植支持式氧化锆全瓷和贵金属金瓷修复的牙冠颜色

发布时间：2018-02-26 14:07

本文关键词： 分光光度计牙冠颜色种植支持式单冠　出处：《华西口腔医学杂志》2014年01期 　论文类型：期刊论文

【摘要】：目的应用一种小型分光光度计对上前牙区种植支持式氧化锆全瓷修复与贵金属金瓷修复的牙冠颜色进行比较,为临床选择修复材料提供参考依据。方法纳入18例(男7例,女11例)行口腔种植修复后复查患者的上前牙区种植支持式单冠29颗进行研究,其中氧化锆全瓷修复单冠11颗,贵金属金瓷修复单冠18颗。采用小型反射型分光光度计型比色仪SpectroShadeTM采集图片并输入计算机,应用相关软件测量每个种植牙冠体1/3与对照天然牙的CIE L龵a龵b龵颜色差异。应用统计学软件SPSS 17.0进行统计分析。结果氧化锆全瓷修复和贵金属金瓷修复的牙冠明度均高于天然牙,全瓷修复引起的明度差异(4.5±3.2)大于金瓷修复引起的明度差异(1.0±2.6),具有统计学意义(P=0.004);色相差异和饱和度差异均无统计学意义。全瓷修复和金瓷修复与天然牙的颜色差异(7.0±2.8和4.0±1.9)均高于人眼的分辨阈值(3.7),且前者差异大于后者,具有统计学意义(P=0.002)。氧化锆全瓷和贵金属金瓷两种修复方式的临床主观评分无统计学差异(P=0.977)。上前牙天然牙色由前向后明度渐低,色相变红黄。结论就本试验所选用的修复材料而言,分光光度计测量显示氧化锆全瓷修复与天然牙的牙冠颜色差异大于贵金属金瓷修复与天然牙的颜色差异,但两种修复方式的临床效果无明显区别。
[Abstract]:Objective to compare the crown color of implant supported zirconia all-ceramic restoration and precious metal porcelain restoration with a small spectrophotometer, and to provide reference for clinical selection of restoration materials. Methods 18 cases (male 7 cases) were included. Female (11 cases) after dental implant restoration, 29 anterior dental implant supported single crowns were re-examined, of which 11 were zirconia all-ceramic crowns, 11 of which were treated with Zirconia all-ceramic prosthetic crowns, 11 of them were treated with Zirconia. A small reflective spectrophotometer (SpectroShadeTM) was used to collect the images and input into the computer. The relative software was used to measure the CIE L3 of each implant crown 1/3 and the natural teeth of the control group. A? B? Color difference. Statistical software SPSS 17.0 was used for statistical analysis. Results the crown brightness of Zirconia all-ceramic restoration and precious metal porcelain restoration was higher than that of natural tooth. The difference of luminance caused by all-ceramic restoration was 4.5 卤3.2), which was higher than that caused by metal-porcelain restoration (1.0 卤2.6), which had statistical significance (P < 0.004), but there was no significant difference in hue and saturation. The color difference between all-ceramic restoration and metal-ceramic restoration and natural teeth was not statistically significant. 7. 0 卤2. 8 and 4. 0 卤1. 9) were higher than those of human eyes, and the difference of the former was greater than that of the latter. There was no significant difference in clinical subjective scores between zirconia all-ceramic and precious metal porcelain. Conclusion the results of spectrophotometer show that the difference of crown color between Zirconia all-ceramic restoration and natural tooth is greater than that of precious metal porcelain restoration and natural tooth. But there is no obvious difference in clinical effect between the two methods.
【作者单位】：四川省医学科学院·四川省人民医院口腔科;丹麦哥本哈根大学健康科学院口腔修复系;
【分类号】：R783.2

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