Abstract
The temporal crest canal (TCC) is a rare variant of the mandibular canal, and it is
important to locate the presence and site of mandibular canals and their variants
before operation. We have examined the anatomical features and prevalence of TCC with
cone-beam computed tomography (CT) in south-east Anatolia. The cone-beam CT images
of 1023 patients (2026 sides) referred to the Department of Dentomaxillofacial Radiology
between 2015 and 2017 years were evaluated retrospectively. Sagittal, cross-sectional,
and reformatted panoramic images were analysed to see if a TCC was present. The canals
were grouped as Type 1 and Type 2 according to their configuration. Seven (0.7%) were
found in 1023 patients. Two of them (0.2%) were in female, and five (0.5%) in male,
patients. Four (0.4%) were increasingly narrow and noticeably curved (Type 1), and
three (0.3%) were uniformly wide and slightly curved (Type 2). All TCC were unilateral:
two on the right and five on the left. We conclude that knowledge of the presence
of a TCC and its anatomical variants in the mandibular ramus is important to ensure
a proper local anaesthetic nerve block for surgical operations. Cone-beam CT is an
important diagnostic tool in dentistry, and clearly recognises a TCC.
Keywords
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Article info
Publication history
Published online: December 19, 2019
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© 2019 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
