Evaluation of Properties of Heat-cure Denture Base Materials Incorporated with Nanodiamonds
Keywords:
poly (methyl methacrylate), nanodiamonds, flexural strength, impact strength, water sorption and solubility, microhardnessAbstract
Despite their weak mechanical properties, heat-cure acrylic materials are frequently employed to produce removable dental prostheses. This study was aimed to evaluate the effect of incorporating different concentrations (0.00wt%, 0.50 wt%, 1.00 wt%, and 2.00wt%) of nanodiamonds on the properties of heat-cure denture base resin materials. A total of 480 specimens, which comprises 160 specimens from each denture base material, were fabricated using the conventional compression molding technique. Forty specimens were allocated to evaluate each property with 10 specimens (n=10) in each concentration of the denture base resin and Nanodiamond composite. The specimens were subjected to evaluate flexural strength, impact strength, surface hardness, water sorption and solubility. The obtained data were subjected to statistical analysis using One-way ANOVA followed by Posthoc analysis. The specimens modified with 0.50wt% exhibited the maximum flexural strength compared to other groups. The impact strength was reduced in the modified groups compared to the unmodified group. The microhardness, water sorption, and solubility were increased as the concentration of nanodiamonds increased. One-way ANOVA showed significant (p=0.000) differences among the groups at various concentrations. Incorporation of lower concentrations of Nanodiamonds into denture base materials may enhance the mechanical properties.
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Copyright (c) 2025 Rama Krishna Alla (Author)
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