Sahib AM, Radhi NJ. Oral cleanness and periodontal health status among coffee-shop workers in Najaf city / Iraq. J Bagh Coll Dent [Internet]. 2018 Dec. 15 [cited 2024 May 6];30(4):15-9. Available from: https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/2549