[三种脱敏剂对牙本质小管的封闭作用：扫描电镜观察]

[The sealing effects of three desensitizers on tubule:an SEM investigation].

作者信息

Pan Ming-di, Huang Yi-Feng

机构信息

Department of Oral Medicine, Ninth People's Hospital, School of stomatology, Shanghai Second Medical University. Shanghai 200011, China.

出版信息

Shanghai Kou Qiang Yi Xue. 2005 Feb;14(1):48-50.

PMID:15747014

Abstract

PURPOSE

The purpose of this in vitro study was to evaluate the sealing effects on tubule by three different dentin desensitizers.

METHODS

48 freshly extracted human premolars were selected. Their buccal dentin was exposed and a standardized circular area was isolated. They were randomly divided into three experiment groups and one control group. Dentin desensitizers included Systemp desensitizer, Seal&protect desensitizer and Gluma desensitizer. Twelve teeth were prepared for each test group (36 teeth total), and the other twelve teeth were selected as a control group. After the removal of cement, the dentin surfaces were cleaned, treated. Then the teeth were vertically cleaved into two sections. The surface and section of these teeth were observed by means of a scanning electron microscope.

RESULTS

All 3 desensitizers could seal the tubules on dentin surface. Systemp desensitizer's dentin permeability was better than Seal&protect, but Gluma had no dentin permeability.

CONCLUSION

3 desensitizers had sealing effect on tubule, systemo desensitizer was the best one.

摘要

目的

本体外研究的目的是评估三种不同的牙本质脱敏剂对牙小管的封闭效果。

方法

选取48颗新鲜拔除的人类前磨牙。暴露其颊侧牙本质并分离出标准化的圆形区域。将它们随机分为三个实验组和一个对照组。牙本质脱敏剂包括Systemp脱敏剂、Seal&protect脱敏剂和Gluma脱敏剂。每个测试组准备12颗牙齿（共36颗牙齿），另外12颗牙齿作为对照组。去除黏固剂后，清洁、处理牙本质表面。然后将牙齿垂直劈成两半。通过扫描电子显微镜观察这些牙齿的表面和断面。