Chakradhar, Anil, Manisha Nepal, Siras Pradhan, Nisha Acharya, and Pratibha Poudel. “Occurrence of Extra Roots in Permanent Mandibular Molars: A Cone Beam Computed Topography Study”. Journal of Nepalese Society of Periodontology and Oral Implantology 5, no. 1 (July 1, 2021): 29–33. Accessed May 7, 2024. https://nepjol.info/index.php/jnspoi/article/view/38180.