Kareem , R.A. and Naji, G.A.-H. 2022. Natural preparation of rice husk-derived silica and eggshell-derived calcium carbonate composite as a coating material for dental implant. Journal of Baghdad College of Dentistry. 34, 1 (Mar. 2022), 36–43. DOI:https://doi.org/10.26477/jbcd.v34i1.3090.