| Home | Current Issue | Archive | Instructions to Authors | Journals |

Original Research Article

Year: 2018 | Month: August | Volume: 5 | Issue: 8 | Pages: 1-6

A Study of Incidence of Accessory Mandibular Foramina in Dry Human Mandibles of Rajasthan State

Sakshi Mathur¹, Puneet Joshi²

^1,2Ph.D. Scholar, Department of Anatomy, Sawai Man Singh Medical College & Hospital, Jaipur

ABSTRACT

Introduction: Any other openings in the mandible other than Mandibular foramen (Mf), sockets of teeth, mental foramen & lingual foramen are known as Accessory Mandibular Foramina (AMf). These foramina may permit the branches of nerve and vessels related with the mandible e.g. the mandibular nerve and inferior alveolar branch of maxillary artery. The local anaesthesia which is used to given during dental extractions might fail, if the branches of Inferior Alveolar Nerve (IAN) pass through these accessory foramina and thus escape the drug. A thorough knowledge of the presence of anatomical variations in human mandible such as the AMf is necessary as it presents various clinical implications. Thus, the objective of this study was to determine the incidence of Accessory Mandibular foramina (AMf) in dry human mandibles of Rajasthan State.
Materials and Methods: Hundred (100) dry human mandibles out of which 79-Dentulous and 21-Edentulous, were studied to find out the incidence of AMF.
Results: It was found that out of 100 mandibles studied, the incidences of AMf were present in 25% mandibles and absent in 75% mandibles. It was present unilaterally- 21% (Dentulous- 18%, Edentulous- 3%) and bilaterally- 4% (Dentulous- 2%, Edentulous- 2%). Also, unilateral AMf frequency was higher than bilateral AMf frequency. A single AMf was seen in 19% (Dentulous- 14%, Edentulous- 5%) but double AMf (all Dentulous) were seen only in 6%.  
Conclusion: The anatomical variability of incidence and position of AMf should be considered to avoid nerve damage and incomplete nerve blocks in various surgical procedures.

Key words: Accessory Mandibular foramina, anaesthesia, incidence, mandible .

[PDF Full Text]