Welcome to International Journal of Anatomy and Research

Type of Article: Original Research

Year: 2016 | Volume 4 | Issue 1 | Page No. 1967-1971

Date of Publication: 29-02-2016

DOI: http://dx.doi.org/10.16965/ijar.2016.122

AN ANATOMICAL STUDY ON THE POSITION OF MANDIBULAR FORAMEN IN 100 DRY MANDIBLES

Gopalakrishna. K *¹, Deepalaxmi S ², Somashekara S.C ³, Rathna B.S ⁴.

^*1,2 Assistant Professor, Department of Anatomy, Malabar Medical College and Research Centre, Modakkallur, Atholi, Kozhikode, Kerala, India.
³ Professor, Department of Pharmacology, Malabar Medical College and Research Centre, Modakkallur, Atholi, Kozhikode, Kerala, India.
⁴ Professor, Department of Anatomy, Malabar Medical College and Research Centre, Modakkallur, Atholi, Kozhikode, Kerala, India.

Address: Dr. Gopalakrishna. K, Assistant Professor, Department of Anatomy, Malabar Medical College and Research Centre, Modakkallur, Atholi, Kozhikode - 673315, Kerala, India. Ph: 09747059273
E-Mail: drgkport@gmail.com

Abstract

Background: Mandibular foramen is leading to mandibular canal through which inferior alveolar nerve and vessels will transmit and supply the teeth of lower jaw.Inferior alveolar nerve block is common anesthetic procedure prior to dental surgeries on lower jaw. Failure in mandibular anesthesia or injury to neurovascular bundle may be resulted by inaccurate localization of mandibular foramen. Hence this study is aimed to locate the mandibular foramen and its distances from different bone landmarks on internal surface of ramus of dry mandible of South Indian origin.
Objective: Study to determine the precise position of mandibular foramen in 100 dry mandibles, which is essential for successful inferior alveolar nerve block prior to dental procedures.
Materials and Methods: This descriptive study was done on 100 dentulous South Indian origin adult dry human mandibles of unknown sex and age. Distance of mandibular foramen from the mandibular notch, anterior border of the ramus of mandible, posterior border of the ramus of the mandible(angle of mandible), posterior border of the 3rd molar socket and meeting point of base with posterior border of ramus were measured. Further observation regarding the presence of accessory mandibular foramen was done. The observations were tabulated and descriptive statistics was used analyze the data.
Result: In the present study, totally 100 mandibular foramina and 18 accessory foramina were observed in the 100 mandible. The mean distance of mandibular foramina to anterior border of ramus is 14.63±3.16 (R) mm and 15.31±3.11 mm(L), to posterior border is (R):12.34±3.10 mm and (L):13.51±3.92 mm, to mandibular notch is (R):21.23±4.56 mm and (L):21.16±3.12 mm, to angle of mandible (R):22.14±3.18 mm and (L):22.1±4.12 mm, to posterior border of 3rd molar socket is (R):14.37±3.16 mm and (L):19.26±2.57 mm.
Conclusion: The present study on the precise location of mandibular foramen and on the incidence of accessory mandibular foramen will help the dental surgeons for more successful anesthesia and to perform safer surgeries on the ramus of mandible.
Key words: Mandibular Foramen, Inferior Alveolar Nerve Block, Mandibular Notch.

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Gopalakrishna. K, Deepalaxmi S, Somashekara S.C, Rathna B.S. AN ANATOMICAL STUDY ON THE POSITION OF MANDIBULAR FORAMEN IN 100 DRY MANDIBLES. Int J Anat Res 2016;4(1):1967-1971. DOI: 10.16965/ijar.2016.122