生物活性玻璃与铒激光联用对牙本质小管封闭的体外研究

›› 2015, Vol. 6 ›› Issue (4): 206-210.

生物活性玻璃与铒激光联用对牙本质小管封闭的体外研究

王婕¹,杨佳佳²,罗瑞²,陈亚明¹

1. 江苏省南京市汉中路136号江苏省口腔医院综合科
2. 南京医科大学附属口腔医院综合科

收稿日期:2015-05-29 修回日期:2015-07-27 出版日期:2015-12-25 发布日期:2015-12-30
通讯作者: 陈亚明 E-mail:yaming_chen@qq.com
基金资助:
江苏高校优势学科建设工程资助项目（2014-37）；南京医科大学口腔医学院横向合作项目（22011001）

Occluding effect of bioactive glass combined with Er laser irradiation on dentinal tubules: An in vitro study

Received:2015-05-29 Revised:2015-07-27 Online:2015-12-25 Published:2015-12-30

摘要/Abstract

摘要： 目的：研究生物活性玻璃与铒激光联用对牙本质小管封闭的体外研究。方法：制取45个离体牙的牙本质盘，用0.5 mol/L的乙二胺四乙酸（EDTA）脱矿形成敏感牙本质模型，按处理方法不同随机分为5组：空白对照组（A），生物玻璃组（B），Er,Cr:YSGG激光组（C），生物玻璃+Er,Cr:YSGG激光组（D），Er,Cr:YSGG激光+生物玻璃组（E）。通过扫描电镜（SEM）和其附属X射线能谱分析（EDXA）比较5组封闭牙本质小管效果及封闭物组成。结果：SEM观察发现B、C、D、E四组均有明显的封闭物堵塞牙本质小管，D组封闭效果最好。小管口面积暴露率D组＜E组＜C组、B组＜A组（P＜0.001）。EDXA分析显示B、D、E组小管口封闭物含特殊元素Si。结论：生物活性玻璃与铒激光联用能更好的封闭牙本质小管。

Abstract: Objective： To evaluate the occluding effect of bioactive glass combined with Er laser irradiation on dentinal tubules. Methods：45 dentine discs were prepared and etched with 0.5 mol/L EDTA. They were randomly divided into 5 groups with different treatments: Group A(without treatment as control), Group B(treated with bioactive glass) , Group C(treated with Er,Cr:YSGG laser irradiation), Group D(bioactive glass followed by Er,Cr:YSGG laser irradiation), Group E(Er,Cr:YSGG laser irradiation followed by bioactive glass). The occluding effect and mineral content was examined by scanning electron microscopy (SEM) and X-ray energy spectrum analysis (EDXA). Results： Micrographs of SEM showed obvious occluding effect in Group B,C,D and E,with the best effect in Group D, and the dentinal tubule exposure rates were Group D

王婕杨佳佳罗瑞陈亚明. 生物活性玻璃与铒激光联用对牙本质小管封闭的体外研究[J]. , 2015, 6(4): 206-210.

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