Type of Article: Original Research
Year: 2016 | Volume 4 | Issue 2 | Page No. 2231-2234
Date of Publication: 30-04-2016
A STUDY OF MENTAL FORAMINA IN SOUTH INDIAN DRY MANDIBLES
Akhilandeswari.B *1, Priya Ranganath 2.
*1 Associate Professor,Department of Anatomy, Bangalore Medical College and Research Institute, Fort, Bangalore, Karnataka, India.
2Professor and Head, Department of Anatomy, Bangalore Medical College and Research Institute, Fort, Bangalore, Karnataka, India.
Address: Dr. Akhilandeswari.B, Associate Professor,Department of Anatomy, Bangalore Medical College and Research Institute, Fort, Bangalore, India-560002, Karnataka, India. Mobile no.: +91 9945221023
Background: The mental foramen is a small foramen situated on the anterolateral aspect of the body of mandible, through which the mental nerve and blood vessels pass. The mental nerve innervates the lower canines and premolars.
Purpose of study: As the mental foramen is an important landmark to facilitate surgical, local anaesthetic, and other invasive procedures, the present study was aimed to elucidate its morphologic and morphometric features.
Results: The shape of the mental foramen was round in 40 right sides (44.9%) and 44 left sides (49.4%). The longitudinally oval foramen was found in 49 right sides (55.1%) and 45 left sides (50.6%). The direction of opening of the foramen was posterosuperior in most of the cases (77.5% on the right side and 83.15% on the left side). The study measured an average vertical diameter of 2.72mm and 2.75mm whereas the horizontal diameter was 3.66mm and 3.54mm on right and left foramina respectively.
Conclusions: Variations exist in the position, shape, and size of mental foramen in different population groups. It is essential to be aware of the possibility of these anatomical variations while planning surgery in that region to avoid nerve damage and also to enable effective mental nerve block anaesthesia.
Key words: Mental foramen, Shape, Diameter, Direction of opening.
- Snell R. Clinical Anatomy for Medical Students. 7th ed. Maryland: Lippincott Williams & Wilkins; 2004: p 768-85
- Santini A , Land MA. Comparison of the position of the mental foramen in Chinese and British mandibles. Acta. Anat.1990;137( 3):208–212.
- Greenstein G, Tarnow D. The mental foramen and nerve: clinical and anatomical factors related to dental implant placement: a literature review. J Periodontol. 2006;77(12):1933-43.
- Fabian FM. Position, shape and direction of opening of the mental foramen in dry mandibles of Tanzanian adult black males. Ital J Anat Embryol. 2007;112(3):169-177.
- Junior OEM, Araujo ALD, Da Silva CMF, Sousa-Rodrigues CF, Lima FJC. Morphological and morphometric study of the mental foramen on the M-CP-18 Jiachenjiang point. Int J Morphol. 2009;27(1):231-238
- Prabodha LBL, Nanayakkara BG. The position, dimensions and morphological variations of mental foramen in mandibles. Galle Medical journal. 200611(1): 13-15.
- Mbajiorgu EF, Mawera G, Asala SA, Zivanovic S. Position of the mental foramen in adult Black Zimbabwean mandibles: a clinical anatomical study. Central African Journal of Medicine.1998;44(2):24-30.
- Agarwal DR and Gupta SB.Morphometric analysis of mental foramen in human mandibles of south Gujarat. People’s Journal of Scientific ReSearch.2011;4(1):15-18.
- Igbigbi PS ,Lebona S.The position and dimensions of the mental foramen in adult Malawian mandibles. West Afr J M .2005;24(3):184-189.
- Singh R , Srivastav AK.Study of position, shape, size and incidence of mental foramen and accessory mental foramen in Indian adult human skulls. International Journal of Morphology.2010;28(4):1141-1146.
- Gupta S, Soni JS. Study of anatomical variations adn incidence of mental foramen and accessory mental foramen in dry human mandibles. National Journal of medical research.2012;2(1):28-30.
- Ilayperuma.I, Nanayakkara.G, Palahepitiya .N.Morphometric analysis of the mental foramen in adult Sri Lankan mandibles. Int.J. Morphol.2009;27(4):1019-1024.
- Sivavadivel.S,Navaneetha.C, Kumar.S.An Anthropometric analysis of Mental foramen in South Indian Population:A dry Mandible study. Journal of Medical research and Practice.2014;3(3).
- Souaga K, Adou A, Angoh Y.Topographical and morphological study of the mandibular foramen in black Africans from the Ivory Coast. Odontostomatol. Trop.2004;27(105):17-21.
- Budhiraja V, Rastogi R, Lalwani R, Goel P, Chandrabose S. Study of position, shape and size of mental foramen utilizing various parameters in dry adult human mandibles from North India. ISRN Anatomy.2013;Article ID.961429:5pages
- Oguz.O, Bozkir MG .Evaluation of location of mandibular and mental foramina in dry, young, adult human male, dentulous mandibles.West Indian Med.J. 2002;51(1):14-16.
Akhilandeswari.B, Priya Ranganath. A STUDY OF MENTAL FORAMINA IN SOUTH INDIAN DRY MANDIBLES. Int J Anat Res 2016;4(2):2231-2234. DOI: 10.16965/ijar.2016.184