Comparative Study of Shear Bond Strength of Composite Resin to Human Dentin Surface Bonded with Three Dentin Bonding Systems in Vitro

Document Type : Original Article

Authors

Department of Operative Dentistry¸ Dental school, Ahvaz Jundishapur University of Medical Sciences,

Abstract

Background and Objective: The aim of this study was to measure the shear bond strength of composite resin to human dentin surface bonded with three different bonding systems.
Subjects and Methods: The crown surface of 66 extracted human third molar teeth were abraded with trimer in a wet environment until the dentin surface was exposed, and they were polished with silicon carbide paper 400 and 600 grit. Then, all the smooth smear layer samples were randomly classified into three equal groups. We used bonding according to the instruction of the manufacturer (the first group Single Bond, the second group BC Plus and third group Charm Bond).
Then, the composite resin was bonded to the tooth surface by plastic tube (diameter: 1.8 mm, height: 5mm) .Finally, shear bond strength was determined by universal testing machine (LMT 100).
Results: The variance analysis (ANOVA) P value= 0/000 revealed the mean of shear bond strength is different between three groups. The mean shear bond for first, second and third groups are 15.25 MP, 6.84 MP, 8.59 MP, respectively. The multiple comparison with THKEY test showed that there is different significance between group one and the other two groups which did not differ significantly.
Conclusion: All in all, we found out that greatest shear bond strength to dentin is the American Single Bond, which is better than Korean product (BC Plus and charm Bond). 
Sci Med J 2011;10(5):487-94

Keywords

References

 
منابع
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Jundishapur Scientific Medical Journal
Volume 10, Issue 5 - Serial Number 74
January and February 2011
Pages 487-494

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History

  • Receive Date: 20 September 2008
  • Revise Date: 12 September 2011
  • Accept Date: 27 September 2011

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