活体上颌中切牙加热漂白后的颜色值变化
发布时间:2018-12-13 11:40
【摘要】:目的:观察患者接受牙齿椅旁恒温外漂白治疗后健康上颌中切牙的颜色值变化。方法:利用牙科色度计采集16例健康上颌中切牙漂白前后的L*、a*、b*颜色参数值,分析各参数的变化以及计算漂白后牙齿颜色变化的色差值。结果:漂白后牙色平均改善了6±3个色阶。漂白前后的色差值为4.23±2.21。配对t检验结果显示,上颌中切牙漂白后L*值显著增加,b*值显著降低,a*值无明显变化趋势。结论:牙齿椅旁恒温外漂白治疗能够增加健康上颌中切牙的明度,颜色向蓝色转变。
[Abstract]:Objective: to observe the color changes of the maxillary central incisors after the treatment of isothermal external bleaching. Methods: the color parameters of 16 healthy maxillary central incisors before and after bleaching were collected by using dental colorimeter. The changes of the parameters and the color difference of the teeth after bleaching were analyzed. Results: after bleaching, the tooth color improved by 6 卤3 color scales on average. The color difference before and after bleaching was 4.23 卤2.21. The results of paired t test showed that the L * value of maxillary central incisor increased significantly and the b * value decreased significantly after bleaching, but there was no obvious change trend of a * value. Conclusion: the treatment of tooth chair with isothermal external bleaching can increase the brightness of the maxillary central incisors and change the color to blue.
【作者单位】: 南京医科大学口腔医学研究所;
【基金】:江苏高校优势学科建设工程资助项目(2014-37) 江苏省高等学校大学生实践创新训练计划项目(201310312060X)
【分类号】:R783
[Abstract]:Objective: to observe the color changes of the maxillary central incisors after the treatment of isothermal external bleaching. Methods: the color parameters of 16 healthy maxillary central incisors before and after bleaching were collected by using dental colorimeter. The changes of the parameters and the color difference of the teeth after bleaching were analyzed. Results: after bleaching, the tooth color improved by 6 卤3 color scales on average. The color difference before and after bleaching was 4.23 卤2.21. The results of paired t test showed that the L * value of maxillary central incisor increased significantly and the b * value decreased significantly after bleaching, but there was no obvious change trend of a * value. Conclusion: the treatment of tooth chair with isothermal external bleaching can increase the brightness of the maxillary central incisors and change the color to blue.
【作者单位】: 南京医科大学口腔医学研究所;
【基金】:江苏高校优势学科建设工程资助项目(2014-37) 江苏省高等学校大学生实践创新训练计划项目(201310312060X)
【分类号】:R783
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