PURPOSE: This paper aims to report and discuss a case in which unusual anatomical variations were observed in the mandibular canal (MC) and the mandibular incisive canal (MIC) in a same patient. MATERIALS AND METHODS: A 49-year-old healthy female was referred for mandibular dental implant placement. Panoramic radiography and cone beam computed tomography (CBCT) were performed. Cross-sections, axial, coronal, panoramic reconstructions and volume rendering were obtained. RESULTS: The panoramic radiograph did not show any evidence of abnormality. CBCT showed a bifid MC on the right side. It extended to the buccal cortex, exteriorized for 6 mm and returned to its conventional trajectory to reach the mental foramen. On the left side, the MIC initially followed its normal trajectory for 4 mm but, in the canine region, it also extended to the buccal cortex and exteriorized. CONCLUSION: The advent of CBCT in Dentistry allowed a greater accuracy in the diagnosis of anatomical variations in the jaws, preventing injury to the neurovascular bundle and enabling an adequate surgical planning in the region.
PURPOSE: This paper aims to report and discuss a case in which unusual anatomical variations were observed in the mandibular canal (MC) and the mandibular incisive canal (MIC) in a same patient. MATERIALS AND METHODS: A 49-year-old healthy female was referred for mandibular dental implant placement. Panoramic radiography and cone beam computed tomography (CBCT) were performed. Cross-sections, axial, coronal, panoramic reconstructions and volume rendering were obtained. RESULTS: The panoramic radiograph did not show any evidence of abnormality. CBCT showed a bifid MC on the right side. It extended to the buccal cortex, exteriorized for 6 mm and returned to its conventional trajectory to reach the mental foramen. On the left side, the MIC initially followed its normal trajectory for 4 mm but, in the canine region, it also extended to the buccal cortex and exteriorized. CONCLUSION: The advent of CBCT in Dentistry allowed a greater accuracy in the diagnosis of anatomical variations in the jaws, preventing injury to the neurovascular bundle and enabling an adequate surgical planning in the region.
Authors: Nikos Makris; Harry Stamatakis; Kostas Syriopoulos; Kostas Tsiklakis; Paul F van der Stelt Journal: Clin Oral Implants Res Date: 2010-04-19 Impact factor: 5.977
Authors: Carlos A Pires; Nabil F Bissada; Jeffery J Becker; Ali Kanawati; Michael A Landers Journal: Clin Implant Dent Relat Res Date: 2009-08-06 Impact factor: 3.932
Authors: Luciano Teles Gomes; Carlos Fernando de Almeida Barros Mourão; Cícero Luiz Braga; Luiz Fernando Duarte de Almeida; Rafael Coutinho de Mello-Machado; Mônica Diuana Calasans-Maia Journal: Oral Maxillofac Surg Date: 2018-09-03