Investigation of the Effect of Adding Nano Tio2 With Al2o3 on Enhancing the Mechanical Properties of Maxillofacial Rehabilitation Silicone Material

Background: Silicone elastomer manufacturers often provide mechanical qualities without fillers, colors, or additives, which may not adequately represent its extra-oral therapeutic performance. This work examines maxillofacial silicone elastomer mechanical characteristics after hybrid nano (TiO2 – Al2O3) addition. Methods: Seven sets of 70 samples were created and put to silicone elastomer: control, 1% TiO2 (nano-titanium oxides), 2% TiO2, 1% Al2O3 (nano-alumina oxides), 2% Al2O3, 0.5% TiO2-0.5% Al2O3, and 1% TiO2-10% Al2O3. After 250 hours of artificial weathering, samples were examined for tear strength and roughness. A one-way ANOVA was used to compare groups. Results: After artificial weathering, samples with 2% TiO2 had a large rise in tear strength and an acceptable increase in roughness, followed by samples with a 1% TiO2-1% Al2O3 hybrid. Conclusions: Hybrid nanoparticles enhanced maxillofacial silicone mechanical characteristics. Hybrid nanoparticle filler reinforcement improves maxillofacial silicone tear strength and roughness for durability.