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

Figure 3 The anatomical structure of the right maxillary first molar was analyzed by cone-beam computed tomography. A: The cone-beam computed tomography (CBCT) image reveals that the maxillary first molar contains three roots; B: The axial sectional CBCT image demonstrates that the distobuccal (DB) root has one canal, and the mesiobuccal (MB) and palatal roots have two separate canals; C: The sagittal sectional CBCT image reveals that the MB, MB2, and DB canals are well filled; D: The sagittal sectional CBCT image indicates that the mesiopalatal and distopalatal canals in the palatal root are obturated.