R. A. . Kareem and G. A.-H. . Naji, “Natural preparation of rice husk-derived silica and eggshell-derived calcium carbonate composite as a coating material for dental implant”, J Bagh Coll Dent, vol. 34, no. 1, pp. 36–43, Mar. 2022, doi: 10.26477/jbcd.v34i1.3090.