Flexural Strength and Viscoelastic Properties of Acrylic Resin Denture Base Material Containing Silver Nanoparticle Synthesized from Fingerroot Aqueous Extract

Abstract

Silver nanoparticle (AgNP) synthesized using aqueous extract of Fingerroot (Boesenbergiarotunda) as reducing and stabilizing agent was incorporated in heat cured acrylic resin PMMA with different concentrations (i.e. 0, 0.025, 0.05, 0.075 and 0.1 wt.%). Flexural strength of AgNP/PMMA denture base was investigated with three-point bending method using Universal tensile tester. Viscoelastic behavior of filled PMMA was studied using the dynamic mechanical analyzer (DMA) over a wide range of frequencies. The flexural strength of AgNP filled acrylic denture base materials were not statistically significantly different with the increase in concentrations of AgNP. The dynamic mechanical analysis showed the frequency dependence of storage modulus (G'), loss modulus (G"), and damping factor (tanδ).