Effects of Incorporation of Titanium Dioxide Nanoparticles on Mechanical Properties of Conventional Glass Ionomer Cement
نویسندگان
1 Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
2 Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
3 Department of Internal Medicine, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
4 Medical Philosophy and History Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
doi
http://dx.doi.org/10.18502/jimc.v7i1.14206چکیده
Background: Due to the poor mechanical properties of Glass Ionomer Cement (GICs), their use is limited to low stress-bearing areas. This study aimed to assess the effect of the addition of Titanium Dioxide (TiO2) nanoparticles on the flexural strength and surface hardness of GIC. Methods: In this in vitro study, 3, 5, and 10 wt.% TiO2 nanoparticles were added to Fuji II conventional GIC powder. The purity and composition of the as-synthesized titania were investigated by using XRD and FT-IR tools. The homogeneity of powder particles within the used matrix was evaluated under a Scanning Electron Microscope (SEM).Results: The SEM micrographs confirmed the homogenous mixing of TiO2 nanoparticles with GIC powder.Conclusion: Nevertheless, the flexural strength of experimental groups was not significantly different from that of the control group (p=0.384). However, the surface hardness of experimental groups was decreased in comparison with that of the control group (p<0.001).
