Chakradhar, A., Nepal, M., Pradhan, S., Acharya, N., & Poudel, P. (2021). Occurrence of Extra Roots in Permanent Mandibular Molars: A Cone Beam Computed Topography Study. Journal of Nepalese Society of Periodontology and Oral Implantology, 5(1), 29–33. https://doi.org/10.3126/jnspoi.v5i1.38180