Exploring maxillary molar root morphology: A case of extra palatal canal

: A fundamental requirement for successful endodontic treatment is understanding the tooth's root canal anatomy. The pulp chamber represents the most intricate part of the tooth. Effective treatment depends on accurately diagnosing and identifying all canals, performing thorough cleaning and shaping, and completing a three-dimensional (3D) filling while preserving the natural structure of the root canal system. : A 35-year-old male patient presented with apical periodontitis in relation to maxillary first molar. Radiographic examination revealed widening of periodontal ligament. Following local anaesthesia via PSA nerve block and infiltration, rubber dam isolation was done. An access cavity was created, and upon locating the canal orifices, an additional, separate palatal canal was identified. Cone Beam Computed Tomography (CBCT) was advised to confirm. Using a microscope, the MB2 orifice was carefully exposed by troughing along the groove between the MB1 and palatal canals with long-shank burs and a DG-16 explorer. All five canals were meticulously cleaned and shaped with NiTi rotary files, followed by 3D obturation. The significance of identifying anatomical changes, such as the extra-palatal canal in maxillary first molars with MB2, is highlighted in this case report. Endodontic results are improved by successful management using precise procedures and modern imaging, highlighting the importance of careful evaluation in complex cases.