IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-11-12-45377 Original Research Paper An In Vitro Study To Find The Incidence Of 2nd Mesiobuccal Canal In Permanent Maxillary First Molars Using Three Different Methods Basawaraj C. Biradar Dr. Dr. Aparna U. Palekar Dr. December 2022 11 12 01 02