Anatomical variations of mental foramen in adult human mandibules

Jovevska, Svetlana and Zisovska, Elizabeta and Nikolovska, Lence (2018) Anatomical variations of mental foramen in adult human mandibules. Knowledge - International Journal, Scientific Papers, 23.2 (2). pp. 431-434. ISSN 2545-4439 (In Press)

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Abstract

Background: The principal complication of surgery of the mental foramen region is paralysis of the mental nerve. Identification of mental foramen is thus important to dental surgeons in nerve blocks and in doing surgical procedures like apicocurettage of mandibular premolars, amalgam filling, periodontal surgery etc. so as to avoid injury to neurovascular bundle. Accessory mental foramina tend to exist in the apical area of the first molar and posterior or inferior area of the mental foramen. Verification of the existence of accessory mental foramina would prevent accessory nerve injury during periapical surgery. In root canal treatment, the possibility of accessory mental foramina–related nerve paraesthesia seems low unless the mental foramen is injured. These foramina have been found to vary in position in different ethnic groups. Therefore, knowledge of morphology of mental foramen will enable effective mental block anaesthesia. Aim: To determine the morphological features of mental foramen in population to provide guidelines for forensic scientists and dentists. Materials and Methods: 100 adult male and female human mandibles were obtained. Size, incidence, shape,location and number of mental foramina were recorded. Incidence of accessory mental foramina was also noticed. Distance from anatomical landmarks and size was recorded using vernier caliper Results: Mental foramen was present in all hundred observed mandibles and it was bilateral. 1.5% of the mandibles showed double mental foramen which was present in the right side. None of the mandibles presented with bilateral accessory mental foramen. Taking both sides into consideration, round shaped mental foramen were observed in 106 mandibles and oval shaped in 94 mandibles. The most common position was on the longitudinal axis of the second premolar. Conclusions: The morphologic variations of mental foramen are clinically important for dental surgeons and anaesthetists.

Item Type: Article
Uncontrolled Keywords: Mental Foramen, Morphology, Apicocurettage of Mandibular Premolar, Position of Mental Foramen
Subjects: Medical and Health Sciences > Basic medicine
Divisions: Faculty of Medical Science
Depositing User: Svetlana Jovevska
Date Deposited: 30 Aug 2018 13:14
Last Modified: 30 Aug 2018 13:14
URI: http://eprints.ugd.edu.mk/id/eprint/20342

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