S AL-Douri, A. and Gh A Al-kazaz, S. 2010. The Effect of Nigella Sativa Oil (Black Seed) on the Healing of Chemically In-duced Oral Ulcer in Rabbit (Experimen-tal Study). Al-Rafidain Dental Journal. 10, 1 (Jan. 2010), 151–157. DOI:https://doi.org/10.33899/rden.2010.45402.