Abesi, Farida, and Maryam Ehsani. “Radiographic Investigation on Degree of Canal Curvature in Human Maxillary Anterior Teeth in Babol, Iran”. Iranian Endodontic Journal 6, no. 1 (April 26, 2011): 25–28. Accessed July 8, 2026. https://journals.sbmu.ac.ir/iej/article/view/1772.