Comparison of the occlusion effect of three kinds of desensitizers on dentinal tubules.
10.11817/j.issn.1672-7347.2014.09.016
- Author:
Lei CHEN
1
;
Fei XU
;
Zhenjie GUAN
;
Weidan ZHANG
;
Xiaojuan WANG
Author Information
1. Stomatology Centre, Xiangya Hospital, Central South University, Changsha 410008, China.
- Publication Type:Journal Article
- MeSH:
Dentin;
ultrastructure;
Dentin Desensitizing Agents;
pharmacology;
Dentin Permeability;
drug effects;
Humans;
Microscopy, Electron, Scanning;
Polymethacrylic Acids;
pharmacology;
Toothpastes;
pharmacology
- From:
Journal of Central South University(Medical Sciences)
2014;39(9):959-963
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To explore the effects of three dentine desensitizers on the surface morphology of freshly exposed dentin and to evaluate their occlusion effects on dentinal tubules using scanning electron microscope (SEM).
METHODS:A total of 16 isolated human premolar samples, which were prepared to expose dentine, were randomly divided into a control group (n=4), a Hybrid Coat group (n=4), a Prime & Bond NT group (n=4), and a anti-sensitivity toothpaste group (n=4). After treatment with dentine desensitizers, one half of the samples in each group were vertically cleaved. Finally, the surfaces and cross sections of the samples were observed by SEM.
RESULTS:The exposed tubule was almost occluded in the Hybrid Coat group and the Prime & Bond NT group, while only the majority of tubules could be sealed in the anti-sensitivity toothpaste group. The cross-section images showed that sediments were visible in all groups except the control group.
CONCLUSION:Hybrid Coat and Prime & Bond NT are able to effectively seal tubules, while the effect of anti-sensitivity toothpaste is slightly poor.
