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IJAR.2016.468

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Type of Article:  Original Research

Volume 5; Issue 1 (February 2017)

Page No.: 3470-3473

DOI: https://dx.doi.org/10.16965/ijar.2016.468

A MORPHOLOGIC AND MORPHOMETRIC STUDY OF INCIDENCE AND POSITION OF MENTAL FORAMINA IN SOUTH INDIAN DRY MANDIBLES

Akhilandeswari.B *1, Priya Ranganath 2.

*1 Professor, Department of Anatomy, Bangalore Medical College and Research Institute, Fort, Bangalore, Karnataka, India.

2 Professor and Head, Department of Anatomy, Bangalore Medical College and Research Institute, Fort, Bangalore, Karnataka, India.

Address for correspondence: Dr.Akhilandeswari. B, Professor, Department of Anatomy, Bangalore Medical College and Research Institute, Fort, Bangalore, Karnataka, India-560002 Mobile no- 91 9945221023 E-Mail: akhilandeswarib@gmail.com

ABSTRACT

Background: The mental foramen is situated on the anterolateral aspect of the body of mandible, through which the mental nerve and blood vessels pass together to the buccal gingiva ,the lower lip and chin.

Purpose of the study: It is an important landmark to facilitate surgical, local anesthetic, and other invasive procedures and the present study was aimed to elucidate its morphometric parameters with reference to easily accessible landmarks.

Materials and Methods: The study was done in the Department of Anatomy, Bangalore Medical College and Research Institute, Bangalore. The study sample consisted of a total of 87 dry mandibles (174 sides). This included 31edentulous (only incisors or canines present) mandibles (62 sides) and 56 dentulous mandibles (112 sides).

Results: Mental foramen was found in all the mandibles studied (100%).The mean distance of the margin of the right mental foramen from the symphysis menti was24.99mm and 25.23mm in edentulous and dentulous mandibles respectively. The superior (alveolar) border of the mandible was 8.22mm and 12.61mm, the posterior border 61.45mm and 62.98mm, and inferior border 11.95mm and 13.12mm from the margin of the mental foramen. On the left side, the measurements were 24.34mm and 25.1mm from symphysis menti, 7.82mm and 12.70mm from the alveolar ridge. The mental foramen was 62.19mm and 61.7mm from the posterior border of mandible. The distance from inferior border was 11.73mm and 12.72mm in edentulous and dentulous mandibles respectively.

Conclusion: The location of the mental foramen is an important factor when considering the mental incisive anesthetic block and surgery in the outer premolar mandibular region. Many earlier studies record the position of the mental foramen in reference to the teeth. This can be difficult in cases where the teeth are irregular or missing. The measurements of the present study, especially the distance from bony landmarks like symphysis menti will help in the localisation of the mental foramen in South Indians.

KEY WORDS: Mental foramen, Position, Measurement, Accessible landmarks, Edentulous, Dentulous.

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Cite this article: Akhilandeswari.B, Priya Ranganath. A MORPHOLOGIC AND MORPHOMETRIC STUDY OF INCIDENCE AND POSITION OF MENTAL FORAMINA IN SOUTH INDIAN DRY MANDIBLES. Int J Anat Res 2017;5(1):3470-3473. DOI: 10.16965/ijar.2016.468