紫外线照射老化对渗透树脂处理釉质白垩斑颜色稳定性的影响

›› 2015, Vol. 35 ›› Issue (12): 1013-1015.

紫外线照射老化对渗透树脂处理釉质白垩斑颜色稳定性的影响

王涛,苗雷英,朱顶贵

南京大学医学院附属口腔医院

收稿日期:2015-06-11 修回日期:2015-09-15 出版日期:2015-12-28 发布日期:2015-12-15
通讯作者: 王涛 E-mail:maoba_cfq@163.com
基金资助:
国家自然科学基金青年项目

Effect of ultraviolet aging on color stability of resin infiltration into enamel white spot lesion

Received:2015-06-11 Revised:2015-09-15 Online:2015-12-28 Published:2015-12-15

摘要/Abstract

摘要： 目的评价紫外线照射老化对渗透树脂颜色稳定性的影响。方法选取前磨牙60颗，置于人工脱矿液中3d形成早期人工釉质龋，再随机分成3组，分别为对照组、渗透树脂处理组、涂氟处理组，将3组试件置于紫外线下照射老化，分别用色度计测量人工脱矿前、紫外线照射前、紫外线照射8、16、24 h的色度值CIE L*、a*、b*，分析色度值的变化。结果样本处理后，渗透树脂处理组与正常釉质的色差值ΔE*小于3.3，在紫外线照射老化后的8 h颜色发生了变化，16 h后颜色趋于稳定，颜色一直为肉眼无法分辨的色差范围内；对照组及涂氟处理组与正常釉质的色差值ΔE*均大于3.3，涂氟组相对于对照组来说，ΔE*减小，差异有统计学意义，在紫外线照射老化后，两组样本颜色无明显改变。结论渗透树脂能明显改善釉质白垩斑的美观，渗透治疗后的牙齿颜色短期稳定性满意。

关键词: 渗透树脂, 紫外线照射老化, 颜色

Abstract: Objective To evaluate the color stability of resin infiltration after ultraviolet （UV） aging.Methods 60 intact premolars were selected from orthodontic extraction,which were placed in the artificial demineralization solution for 3 days to form initial artificial enamel caries.The teeth were divided into 3 groups randomly： control （CON）,resin infiltration （RI） and fluoride treatment （FLU）.Changes in color of test samples were determined before and after UV aging for 8,16 and 24 h using the CIE L* a* b* system by a colorimeter.Results After being treated with resin infiltration or fluoride treatment,the ΔE* of 3 groups was RI

Key words: resin infiltration, ultraviolet aging, color

中图分类号:

R781.05

王涛苗雷英朱顶贵. 紫外线照射老化对渗透树脂处理釉质白垩斑颜色稳定性的影响[J]. , 2015, 35(12): 1013-1015.

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