Investigating The Impact of Ta2O5 Nanoparticles on Hardness and Surface Roughness of Soft Denture Liners

Abstract

The current study investigates effects of incorporating Ta₂O₅ nanoparticles (NPs) into a PEMA soft denture liner. The objective is to examine the inclusion of Ta₂O₅ NPs affecting the shore A hardness, and surface roughness properties. Results show that adding Ta₂O₅ NPs reduces hardness and roughness, with greater reductions at higher nanoparticle concentrations. The control group has the highest hardness value, while specimens with Ta₂O₅ NPs exhibit progressively lower values. Statistically significant differences were observed among the tested groups. The introduction of Ta₂O₅ NPs as a nanocomposite improves the hardness properties, providing a novel approach compared to traditional methods. Soft denture liners with lower hardness offer better cushioning and adaptability to oral tissues, minimizing trauma. The presence of Ta₂O₅ NPs also influences surface roughness, resulting in a smoother texture. These findings contribute to the development of improved denture materials for enhanced comfort and performance