Abdullah ZS. The effect of addition of hydroxyapatite microscopic fillers on surface roughness and some mechanical properties of heat cured acrylic resin. J Bagh Coll Dent. 2015;27(3):50-54. Accessed May 2, 2024. https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/805