Chakradhar A, Nepal M, Pradhan S, Acharya N, Poudel P. Occurrence of Extra Roots in Permanent Mandibular Molars: A Cone Beam Computed Topography Study. J Nepal Soc Perio Oral Implantol [Internet]. 2021 Jul. 1 [cited 2024 Apr. 25];5(1):29-33. Available from: https://www.nepjol.info/index.php/jnspoi/article/view/38180