Al-Sabbagh, Nada Abdulmunem, and Hussain F Al-Huwaizi. “Evaluation of the Effect of Root Canal Preparation Size and Flaring on the Depth of Irrigant Penetration (In Vitro Study) ”. Journal of Baghdad College of Dentistry, vol. 25, no. 2, June 2013, pp. 31-35, https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/224.