Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (8): 1447-1450.doi: 10.3969/j.issn.1673-8225.2012.08.026

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Effect of hybrid coat on the closing of dentinal tubules

Ma Yan, Chen Tao, Wu Pei-ling   

  1. Department of Stomatology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi  830028, Xinjiang Uygur Autonomous Region, China
  • Received:2011-11-01 Revised:2011-12-16 Online:2012-02-19 Published:2012-02-19
  • Contact: Wu Pei-ling, Chief physician, Associate professor, Department of Stomatology, the Second Affiliated Hospital of Xinjiang Medical University,Urumqi 830028, Xinjiang Uygur Autonomous Region, China wplkq@sina.com
  • About author:Ma Yan★, Studying for master’s degree, Department of Stomatology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830028, Xinjiang Uygur Autonomous Region, China 52005694@qq.com
  • Supported by:

     the Natural Science Foundation of Xinjiang Uygur Autonomous Region, No. 2011211A040*; Scientific Research and Innovation Foundation of Xinjiang Medical University, No. XJC201025*

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Abstract:

BACKGROUND: Clinical studies have reported that hybrid coat used for porcelain crown dentin after tooth preparation surface protection treatment can effectively reduce the base tooth sensitivity.
OBJECTIVE: To in vitro observe the effect of hybrid coat on the closing of dentin tubules.
METHODS: A total of 20 intact extracted premolar teeth were divided into three groups. Black control group without any treatment on dentin surface. Gluma coating agent was used for control group. Hybrid coat was used for experimental group, and then the closing situation of the dentinal tubules was observed under scanning electron microscopy.
RESULTS AND CONCLUSION: The results of scanning electron microscopy showed that the average diameter and density of the dentinal tubules in the experimental group were significantly lower than those in the control and the blank control groups (P < 0.05), relative area of the dentinal tubules in the experimental group was significantly lower than that in the blank control group (P < 0.01). It is indicated that the hybrid coat is superior to gluma coating agent in decreasing density and diameter of dentinal tubules.

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