Comparative study for Enhancing Poly (methyl-methacrylate) (PMMA) Performance with Engineered Nanomaterials

Objectives:The current study was intended to evaluate and compare the effect of addition of Titanium Dioxide Nanoparticles versus Zirconium oxide nanoparticles to denture base materials regarding: impact strength and water sorption Materials and Methods: Thirty heat-polymerized acrylic resin specimens with the dimensions of (60x8x2 mm) were prepared according to the manufacturer’s instructions and divided into three groups each group 10 specimens first group was the control group , the Second group incorporated with 1.5wt% TiO2NPs (Titanium dioxide nanoparticles) to the heat-polymerized acrylic resin powder. And the third group incorporated with 1.5wt% ZrO2NPs (zirconium dioxide nanoparticles) to the heat-polymerized acrylic resin powder : impact strength was examined using Universal Testing Machine. A non-contact optical to compare different groups. water sorption were evaluated for all specimens. Data were statistically analyzed. Results:for heat cured acrylic resin with Zirconium dioxide nanoparticles for flexural stregth ,impact strength and water sorption was the highest value compared to Titanium Dioxide Nanoparticles Conclusions:ZrO2NPs nanoparticles have increased flexural stregth of resins as the concentration increase. For impact strength, water sorption compared to heat cured acrylic resin reinforced with Titanium Dioxide Nanoparticles