Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (38): 7083-7086.doi: 10.3969/j.issn.2095-4344.2012.38.011

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Effect of different etching systems on bond strength of fiber posts

Wang Ze1, Xiao Yue1, Zou Qing-xue2, Li Wei-shan1, Qu Xue-wei1, Liu Zheng3, Li De-chao1   

  1. 1Department of Implantation, Stomatological Hospital of Jiamusi University, Jiamusi 154007, Heilongjiang Province, China
    2Department of Stomatology, Forestry Health School of Heilongjiang Province, Jiamusi 154007, Heilongjiang Province, China
    3Department of Stomatology, Jiamusi Central Hospital, Jiamusi 154007, Heilongjiang Province, China
  • Received:2012-02-07 Revised:2012-03-26 Online:2012-09-16 Published:2012-09-16
  • Contact: Li De-chao, Doctor, Professor, Chief physician, Department of Implantation, Stomatological Hospital of Jiamusi University, Jiamusi 154007, Heilongjiang Province, China dechaoli2004@ yahoo.com.cn
  • About author:Wang Ze★, Master, Attending physician, Department of Implantation, Stomatological Hospital of Jiamusi University, Jiamusi 154007, Heilongjiang Province, China 78202025@qq.com

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Abstract:

BACKGROUND: The interface between resin and dentin bonded is a weak structure. So it is significant to develop a better bonding system.
OBJECTIVE: To investigate the effect of self-etching system and general etching system on bond strength of fiber posts.
METHODS: Thirty human intact signal-rooted canals were prepared using step-back technique and obturated with gutta-percha using lateral condensation. The roots were divided into three groups and received different bond systems. Group A used self-etching system, group B used general etching system, and group C was blank control group.
RESULTS AND CONCLUSION: The bond strength of groups A, B, C was (3.24±0.76), (4.09±0.54), (2.85±0.89) MPa. Significant difference was found among different etching systems (P < 0.05). Scanning electron microscope observation found that in group B, fiber post and dentin were connected better than group A. Good marginal seal was observed in group B. General etching system is the best way to cement fiber posts, and the bond strength with general etching system is higher than that with self-etching system.

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