Enhancement of Antibacterial and Mechanical Features of Glass Ionomer Restoration by Adding ZnO Nanoparticles Prepared by PLAL: In Vitro Study

Abstract

The objective of this manuscript was to study the antibacterial and mechanical effect on composition ZnONPs-Glass Ionomer restoration. Zinc oxide nanoparticles prepared by laser ablation in liquid at different concentrations. After that, the glass ionomer was adding in calculated amount to get homogenous composition. The physical properties of resulted NPs were examined by FTIR, XRD, TEM, and AFM. The Antibacterial activity against streptococcus mutant and compressive strength were also measured. The result of the FTIR spectrum confirms the formation of the Zn-O bond. XRD pattern shows peaks at 28..55°, 31.21° and 42.70°, correspond to the (100) (101) and (102) crystal planes of cubic Zinc Oxide structure. TEM image exhibits spherical and homogenous ZnO nanoparticles with particle size <50nm. Also, the result shows a significant increase in the antibacterial property of ZnO-GI with good modifying the mechanical properties. Thus adding ZnO nanoparticles to glass ionomer restoration can be considered as a better alternative to conventional GI.