Submitted: 24 Nov 2014
Revised: 28 Jan 2015
Accepted: 20 Feb 2015
First published online: 02 Feb 2016
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Avicenna J Dent Res. 2016;8(1):3-3.
doi: 10.17795/ajdr-25459
  Abstract View: 19
  PDF Download: 15

Research Article

Position of the Mental Foramen in Panoramic Radiography and Its Relationship to Age in a Selected Iranian Population

Mahdieh Dehghani 1, Sahar Ghanea 2 *

1 Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran
2 Assistant professor, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Rafsanjan university of Medical S ciences, Rafsanjan, IR Iran
* Corresponding author: Sahar Ghanea, Assistant professor, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Rafsanjan university of Medical S ciences, Rafsanjan, IR Iran; Faculty of Dentistry, Mofateh blv, Rafsanjan university of Medical Sciences, Rafsanjan, IR Iran. Tel: +98-3434280031 , Fax: +98-3434280008, E-mail: Email: s_ghanea82@yahoo.com

Abstract

Background: The position of the mental foramen is critical for surgery and local anesthesia.

Objectives: This study was conducted to assess the position of the mental foramen and its relationship to age in a selected Iranian population.

Materials and Methods: This was a cross-sectional descriptive study. Three hundred panoramic radiographs were assessed. Three variables were assessed for each radiograph: anterior-posterior position, superior-inferior position, and radiographic appearance. The position and appearance of the mental foramen were recorded according to gender and age. The results were analyzed using Chi-square and Fisher’s exact tests.

Results: Considering the anterior-posterior position, the mental foramina were located in the following positions: between premolars (41.5%), at the apex of the second premolars (31.7%), in the posterior area of the second premolars (19.2%), in the anterior area of the first premolars (4.3%), and at the apex of the first premolars (3.3%).The superior-inferior position of the mental foramina were below, above, and at the level of the apices of the premolars in 78.8%, 2.5%, and 18.7% of cases, respectively. The appearance of the mental foramen was continuous in relation to the mandibular canal in 55.9% of cases, while it was separated, diffuse, and unidentified in 29.5%, 9.7%, and 5% of cases, respectively. Age was found to affect the position and appearance of mental foramen.

Conclusions: The mental foramina were most commonly located between the first and second premolars and below the apex. A continuous appearance was the most common appearance for the mental foramen, which was similar in males and females.

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