Mandibular Accessory Mandibular Foramen - An Anatomical Study In Dry Adult Human Mandibles Of Eastern India
Journal Title: Indian Journal of Basic and Applied Medical Research - Year 2018, Vol 8, Issue 1
Abstract
Introduction: Inferior alveolar nerve block failureresults from inaccurate localization of mandibular foramen and accessory mandibular foramina. Aim of this study is to locate mandibular foramen precisely from different anatomical landmarks and observe incidence of accessory mandibular foramina. Methods: This study was done on 160 dry mandibles of unknown sex and age, collected from the Department of Anatomy, IPGME&R. Distance of mandibular foramen was measured from mandibular notch, angle, anterior and posterior border of mandible. We observed incidence of accessory mandibular foramina around mandibular foramen. The values were analysed statistically. Observations and Results: Distance of mandibular foramen from notch was 19.14±2.86mm(right) and 18.89±2.94mm(left). On right side the distance from anterior border was 17.44±1.95mm and from posterior border 13.56±2.93mm, on left side they are 17.49±2.21mm and 13.69±2.42mm respectively from anterior and posterior border. Distance from angle are 20.16±3.55mm (right) and 20.65±3.79 mm (left). 20.44±4.4mm and 21.21±5.41mm are the values we get from last molar tooth on right and left side respectively. Bilaterally there was no significant statistical difference. We found 63.75%(left) and 53.75% (right) specimen with no accessory foramen. Single accessory foramen was 37.5%(right) and 31.25%(left), double foramina in 2.5%(right) and 5%(left), three foramina 6.25%(right) and no such specimen with three accessory foramina on left side we found. Conclusion: Precise knowledge about position of mandibular foramen is essential for dentistry during regional anaesthesia (inferior alveolar nerve block) and different surgical procedures. Knowledge about accessory foramina may be important for radiotherapists during planning of radiation therapy.
Authors and Affiliations
Anwesa Pal
Keywords
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