A morphometric analysis of the mandibular canal by cone beam computed tomography and its relevance to the sagittal split ramus osteotomy

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A morphometric analysis of the mandibular canal by cone beam computed tomography and its relevance to the sagittal split ramus osteotomy

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Publication Article, peer reviewed scientific
Title A morphometric analysis of the mandibular canal by cone beam computed tomography and its relevance to the sagittal split ramus osteotomy
Author(s) Chrcanovic, Bruno ; de Carvalho Machado, Vinícius ; Gjelvold, Björn
Date 2016
English abstract
PURPOSE: The aim of the present study was to morphometrically analyze the mandibular canal through the mandibular ramus by cone beam computed tomography (CBCT) and to relate the findings to performing sagittal split ramus osteotomy. METHODS: CBCT of 200 patients were analyzed. Five parameters were measured at the axial scan, from the mandibular foramen to 21 mm below it (3-mm intervals). The canal was classified according to the position within the bone marrow space. Variations were evaluated according to age, sex, side, and number of mandibular teeth. RESULTS/CONCLUSIONS: The following measurements increased gradually towards the most inferior level of measurement: the total thickness of the mandibular ramus through the center of the mandibular canal, the width of the bone marrow space (both buccal and lingual), and the narrowest width from the mandibular canal inner cortical to the mandibular ramus external cortical. The inner diameter of the mandibular canal slightly decreased to the same direction. Concerning the mandibular canal position within the bone marrow space, the percentage of the separate type increased towards the most inferior level of measurement, and the contact and fusion types decreased. Age, number of teeth, and sex had no significant influence on the total thickness of the mandibular ramus and on the narrowest width from the mandibular canal inner cortical to the mandibular ramus external cortical.
DOI http://dx.doi.org/10.1007/s10006-016-0550-9 (link to publisher's fulltext)
Publisher Springer
Host/Issue Oral and Maxillofacial Surgery;
ISSN 1865-1550
Language eng (iso)
Subject(s) Mandibular foramen
Mandibular canal
Mandibular ramus
Morphometric measurements
Cone beam computed tomography
Sagittal split ramus osteotomy
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/20460 (link to this page)

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