The effect of silver nanoparticles on composite shear bond strength to dentin with different adhesion protocols

Authors

  • KOOHPEIMA Fatemeh Shiraz University of Medical Sciences; School of Dentistry; Biomaterial Research Center
  • MOKHTARI Mohammad Javad Islamic Azad University; Young Researchers and Elite Club
  • KHALAFI Samaneh Shiraz University of Medical Sciences; School of Dentistry; Biomaterial Research Center

DOI:

https://doi.org/10.1590/1678-7757-2016-0391

Keywords:

Silver, Nanoparticles, Shear strength, Dentin-bonding agents

Abstract

In Dentistry, restorative materials and oral bacteria are believed to be responsible for restoration failure. To make long-lasting restorations, antibacterial agents should be made. Inorganic nanoparticles and their nano composites are applied as good antibacterial agents. Objective The purpose of this study was to investigate the effect of silver nanoparticles on composite shear bond strength using one etch and rinse and one self-etch adhesive systems. Material and Methods Silver nanoparticles were prepared. Transmission electron microscope and X-ray diffraction were used to characterize the structure of the particles. Nanoparticles were applied on exposed dentin and then different adhesives and composites were applied. All samples were tested by universal testing machine and shear bond strength was assesed. Results Particles with average diameter of about 20 nm and spherical shape were found. Moreover, it was shown that pretreatment by silver nanoparticles enhanced shear bond strength in both etch and rinse, and in self-etch adhesive systems (p≤0.05). Conclusions Considering the positive antibacterial effects of silver nanoparticles, using them is recommended in restorative dentistry. It seems that silver nanoparticles could have positive effects on bond strength of both etch-and-rinse and self-etch adhesive systems. The best results of silver nanoparticles have been achieved with Adper Single Bond and before acid etching.

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Published

2017-08-01

Issue

Section

Original Articles

How to Cite

The effect of silver nanoparticles on composite shear bond strength to dentin with different adhesion protocols. (2017). Journal of Applied Oral Science, 25(4), 367-373. https://doi.org/10.1590/1678-7757-2016-0391