Kustarci, Alper, ER Kürsat, and Kerem Engin Akpinar. “Root Canal Treatment of Maxillary Second Premolar With Three Roots and Three Canals: Clinical Cases”. Brazilian Journal of Oral Sciences 6, no. 22 (January 21, 2016): 1411–1414. Accessed February 2, 2023. https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8643002.