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Medicine Research ›› 2017, Vol. 1 ›› Issue (2): 42-46.DOI: 10.21127/yaoyimr20170012

• • 上一篇    

  

  • 收稿日期:2017-09-06 接受日期:2017-12-28 出版日期:2017-09-08 发布日期:2017-12-31

Graphene Oxide-Silica Composite Fillers into the Experimental Dental Adhesives for Potential Therapy

Liu Mei,Hou Wei,Chen Wenjing,Hu Xiaokun   

  1. Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, China
  • Received:2017-09-06 Accepted:2017-12-28 Online:2017-09-08 Published:2017-12-31
  • Contact: Hu Xiaokun
 

Abstract:

The aim of this study was to investigate the benefits of incorporation of graphene oxide-silica (GO@SiO2) on the degree of conversion and bond strength of an experimental dental adhesive. The GO@SiO2 nanocomposites were prepared and characterized by using FTIR, Raman and TEM. After that, GO@SiO2 was added into an experimental dental bonding system as novel nanofiller, and the effect of the modification on the dispersion stability of the GO@SiO2 nanocomposites in the experimental adhesive was studied. In addition, the degree of conversion was characterized by real-time FTIR, and the light conversion kinetic curves were calculated. Furthermore, the bond strength of the experimental adhesive to dental restorative resin was investigated. The result showed that the GO@SiO2 nanocomposites dispersed well in the experimental adhesive, and the introduction of GO@SiO2 improved effectively the degree of conversion of the dental adhesive after curing. In addition, the experimental adhesive filled with GO@SiO2 nanocomposites showed not only similar bond strength to a commercial adhesive, but also enhanced dramatically compressive strength as well. Furthermore, the obtained experimental dental adhesives can increase reactive oxygen species level in cells through photothermal conversion to be used in potential therapy.

Key words: graphene oxide-silica, degree of conversion, bonding strength, reactive oxygen species

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