Ghoddusi, Jamileh, Maryam Javidi, and Mahdi Vatanpour. “Two Symmetrical Maxillary First Molars With Two Disto-Buccal Root Canals”. Iranian Endodontic Journal 1, no. 2 (December 7, 2008): 73–76. Accessed July 8, 2026. https://journals.sbmu.ac.ir/iej/article/view/418.