Sharif, Ahmed, and Khidair Al-Jumaili. “Evaluation of En-Masse Retraction Using Microimplant Versus Conventional Techniques: An in Vitro Study”. Journal of Baghdad College of Dentistry 25, no. Special Is (1): 120-125. Accessed November 27, 2019. http://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/210.