Hassan, Suha, Nidhal Ghaib, and Batool Al-Ghurabi. “Assessment of Bacterial Contamination of Orthodontic Arch Wire”. Journal of Baghdad College of Dentistry 31, no. 1 (March 15, 2019): 48-51. Accessed November 19, 2019. http://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/2578.