yaqoub yousif ,, S. and Saleh Abdullah , Z. 2023. Effect of Tantalum Oxide Nanopowder on Heat Cure Acrylic Resin Impact Strength and Surface Hardness. Diyala Journal of Medicine. 25, 1 (Oct. 2023), 159–169. DOI:https://doi.org/10.26505/djm.v25i1.1030.