Preoperative orthopantomogram and cone-beam computed tomography. Top: Orthopantomogram revealing an osteolytic lesion of the mandibular symphysis, with well-defined margins, flanked by teeth roots 33 and 43 on either side and linked to the root resorption of teeth 31 and 41. Bottom left: sagittal section CBCT focused on no. 31 (tooth rhizalysis). An osteolytic lesion with a thin bony wall can be observed. Bottom right: axial CBCT section focused on the roots of teeth 33 and 43.