Effect of Tantalum Oxide Nanpowder on Heat Cure Acrylic Resin Thermal Conductivity and Surface Roughness

Abstract

The main problem with heat cure acrylic is their poor thermal conductivity and their roughness. This study aims at evaluating the effect of tantalum oxide nanopowder on the thermal conductivity and surface roughness of heat cure acrylic resin. Material and Method: The Intention was to create a total of (60) specimens. Twenty samples were made without additives (control), and 40 had been made with tantalum oxide at two different amounts (1 %, 1.5%). Results: the thermal conductivity tests showed non-significant difference among studied groups. The surface roughness tests showed highly significant difference among studied groups. when tantalum oxide had added to heat cure acrylic at two different amounts (1%, 1.5%). Conclusion: adding tantalum oxide increases the thermal conductivity and decreases the surface roughness of the two experimental groups.