Endodontic treatment of the maxillary first molar with palatal canal variations: A case report and review of literature

Figure 2 X-ray and an intraoral photograph showing the treatment process of the mesiopalatal canal. A: The cone-beam computed tomography (CBCT) image reveals that the maxillary first molar contains three roots, and the mesiopalatal (MP) canal has not been filled (orange arrow); B: The CBCT image reveals an unfilled MP canal in the palatal root (orange arrow); C: The X-ray demonstrates the measurement of the working length of the MP canal; D: The axial sectional CBCT image reveals that the MP canal is tightly obturated (orange arrow); E: The X-ray reveals that five canals of the tooth are well obturated; F: The intraoral photograph reveals that the mesiobuccal (MB), MB2, distobuccal, MP, and distopalatal canals are obturated with gutta-percha.