Fatemeh Koohpeima, Mohammad Javad Mokhtari, Samaneh Khalafi
Shiraz University of Medical Sciences, School of Dentistry, Biomaterial Research Center, Department of Operative Dentistry, Shiraz, Iran.
Islamic Azad University, Zarghan Branch, Young Researchers and Elite Club, Zarghan, Iran.
J Appl Oral Sci. 2017 Jul-Aug;25(4):367-373. doi: 10.1590/1678-7757-2016-0391.
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.
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.
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).
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.
本研究旨在使用一种酸蚀冲洗型和一种自酸蚀粘结系统，研究银纳米颗粒对复合树脂剪切粘结强度的影响。
制备银纳米颗粒。使用透射电子显微镜和X射线衍射对颗粒结构进行表征。将纳米颗粒应用于暴露的牙本质，然后应用不同的粘结剂和复合树脂。所有样品均通过万能试验机进行测试，并评估剪切粘结强度。
发现平均直径约为20 nm的球形颗粒。此外，结果表明，在酸蚀冲洗型和自酸蚀粘结系统中，银纳米颗粒预处理均能提高剪切粘结强度（p≤0.05）。
考虑到银纳米颗粒的积极抗菌作用，建议在口腔修复学中使用。银纳米颗粒似乎对酸蚀冲洗型和自酸蚀粘结系统的粘结强度都有积极影响。使用Adper Single Bond粘结剂并在酸蚀前使用银纳米颗粒可获得最佳效果。
