Effect Of Incorporation of Zirconium Oxide Nanoparticles on Thermal Conductivity and Microhardness of PMMA Heat Polymerized Acrylic Denture Base Material - An Invitro Study
Abstract: Introduction: Poly (methyl methacrylate) (PMMA) is widely used in denture base fabrication due to its favourable properties. However, limitations such as low thermal conductivity, poor mechanical strength, and susceptibility to microbial adhesion necessitate modifications to improve its performance. Zirconium oxide (ZrO?) nanoparticles have shown promise in enhancing the mechanical and thermal properties of PMMA - based denture materials. Objective: This study aimed to evaluate the effect of incorporating different concentrations of zirconium oxide nanoparticles (3%, 7%, and 10%) on the thermal conductivity and microhardness of heat - cured PMMA denture base resin. Materials And Methods: Total 80 Heat - cured PMMA samples were fabricated using stainless steel molds, following standard processing techniques. The samples were reinforced with ZrO? nanoparticles at varying concentrations and divided into four experimental groups. Thermal conductivity was measured using the Cussons Thermal Conductivity Apparatus, while microhardness was assessed using a Vickers Hardness Tester. Data were analyzed using one - way ANOVA and Tukey?s post hoc test, with statistical significance set at p
Keywords: PMMA, zirconium oxide nanoparticles, denture base resin, thermal conductivity, microhardness
How to Cite?: Soumya Jagithyala, Dr. Angadi Kalyan Chakravarthy, Dr. Shobarani B., Dr. Ramavarapu Avinash, Dr. Alaveni Manga Narsingoju, M. Hari Chandana, "Effect Of Incorporation of Zirconium Oxide Nanoparticles on Thermal Conductivity and Microhardness of PMMA Heat Polymerized Acrylic Denture Base Material - An Invitro Study", Volume 14 Issue 5, May 2025, International Journal of Science and Research (IJSR), Pages: 1593-1599, https://www.ijsr.net/getabstract.php?paperid=SR25526103443, DOI: https://dx.doi.org/10.21275/SR25526103443