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Case Reports in Dentistry
Volume 2016, Article ID 1971925, 4 pages
Case Report

Unilateral Absence of Mental Foramen with Surgical Exploration in a Living Human Subject

1Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Izmir Katip Celebi University, 35640 Izmir, Turkey
2Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Izmir Katip Celebi University, 35640 Izmir, Turkey

Received 5 November 2015; Revised 17 January 2016; Accepted 28 January 2016

Academic Editor: Asja Celebić

Copyright © 2016 Murat Ulu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The mental foramen (MF) is an important anatomic landmark of the mandible, in which the somatic afferent sensory nerve of the mandibular nerve emerges as mental nerve and blood vessels. The identification and actual location of MF are important in order to avoid sensory dysfunction or paresthesia due to mental nerve injury. In the literature there are some rare reports on the anatomical variations of the MF such as its location or presence of accessory foramina. The present report describes the absence of mental foramina on the left side of the mandible, as detected by cone-beam computed tomography before impacted tooth removal and observed directly during surgery.