机械清洁对基托树脂外源性着色的影响

›› 2012, Vol. 3 ›› Issue (3): 142-144.

机械清洁对基托树脂外源性着色的影响

庞敏¹,吴凤鸣²,王来杰¹,章雯¹

1. 江苏省口腔医院
2. 南京医科大学附属口腔医院修复科

收稿日期:2012-06-01 修回日期:2012-08-22 出版日期:2012-09-25 发布日期:2012-10-08
通讯作者: 王来杰 E-mail:wanglaijie1055@sina.com
基金资助:
江苏高校优势学科建设工程资助项目

The effect of aggravating staining of the base resin by mechanical cleaning

Received:2012-06-01 Revised:2012-08-22 Online:2012-09-25 Published:2012-10-08

摘要/Abstract

摘要： [摘要] 目的研究机械清洁方法即电动牙刷配合清洁膏、牙膏或自来水刷洗对基托树脂表面着色的影响。方法制作64块热固化型基托树脂试件，取60块分为4组，其中一组为对照组，不做处理。3组实验组试件分别用电动牙刷配合自来水、牙膏或清洁膏刷洗22 min。随后，4组试件分别随机分成3组，浸泡入橙汁、药酒、漱口水中4周。于浸泡前后用电子比色仪测色，计算着色前后色差，与对照组进行比较，统计学分析有无显著性差异。另外的4块试件，1块作为对照，另3块分别用三种机械方法刷洗22 min，扫描电镜观察各试件表面形态，比较三种清洁方法对热固化型树脂表面的磨损情况。结果各浸泡液中牙膏刷洗组与对照组相比有统计学意义（P <0.05），其余均无统计学差异（P﹥0.05）。扫描电镜观察显示：空刷与清洁膏刷洗没有对基托表面形貌产生明显影响，而牙膏刷洗的树脂表面产生了一定程度的划痕。结论电动牙刷配合自来水和清洁膏刷洗不会对热固化型基托树脂表面造成明显磨损，对于树脂表面色素的沉积均无明显影响。而电动牙刷配合牙膏刷洗对树脂表面有一定的磨损，且加重了树脂的着色。

Abstract: Abstract: Objective To evaluate the wear resistant of heat-cured base resin to three mechanical denture cleaning. Methods 64 samples were made, 60 of which were divided into 4 groups. Then, 3 groups were cleaned with three mechanical cleaning methodes separately. After cleaning, each group were divided into 3 subgroups to immerse into orange juice , dentilave or medicinal wine for 4 weeks. Baseline color was measured using a colorimeter. Further color measurements were made after 4 weeks of immersion. Compared ΔE with the results using a one-way ANOVA. The other 4 samples were made to observe by Electron microscopic. Results The mechanical cleaning have no effects on acceleration resin’s staining (P﹥0.05) except cleaning by tooth paste; cleaning by tooth paste showed wear on base resin, while cleaning with water and dental paste without wear effect. Conclusions Dentipur showed no wear on the heat-cured base resin, and did not acceleration resin’s staining. But thooth paste did.

庞敏吴凤鸣王来杰章雯. 机械清洁对基托树脂外源性着色的影响[J]. , 2012, 3(3): 142-144.

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