@Article{, title={The Effect of Zirconium Oxide Nanoparticle on the Surface Roughness of Maxillofacial Silicone Material}, author={Israa E. Hussein and Radhwan H. Hasan}, journal={Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان}, volume={22}, number={1}, pages={11-18}, year={2022}, abstract={Aims: The study intended to inspect the consequence of the addition of zirconium oxide (ZrO2) nanoparticle at two concentrations (1% and 1.5% by weight) on the surface roughness of the maxillofacial silicone material (room temperature vulcanized). Materials and methods: Thirty samples were prepared according to the manufacture instructions and divided into three groups (n=10). A digital surface roughness profilometer tested the surface roughness samples for the control group (A) free from nanoparticle, group (B) 1% ZrO2, group (C) 1.5 % ZrO2 .Results: The mean values of the surface roughness measured groups a highly significant difference among groups. Group A (.2137 µm) exhibited a highly significant difference compared to group B (.2698 µm) and group C (.2801 µm). Besides, a highly significant difference between group B and group C .Conclusions: Incorporation of 1% and 1.5% by weight of ZrO2 nanoparticle into maxillofacial silicone material increases surface roughness.

} }