Study of Mandibular Foramen from Different Bony Landmarks in Dry Human Mandibles

The inferior alveolar nerve block is the commonest local anesthetic technique which is used for anaesthetizing the lower jaw in various surgical & dental operations on the mandible and mandibular teeth such as removal of impaction, reductions of fractures and extraction of teeth. The success of this technique highly depends on the proximity of the needle tip to the MF at the time of the anesthetic injection. The aim of the study was to find exact location of mandibular foramen from different anatomical landmark. In present study we took 80 dry human mandibles & all the distance were measured from center of mandible to different landmark on both sides. The mean of AB-MF distance on right side is 16.31mm & on left side is 16.33mm. Mean of PB-MF distance are 14.74mm & 14.64mm on right side and left side respectively.22.98mm and 23.06mm are the mean of MN-MF on right and left side respectively. The mean of AG-MF is 26.45mm on right side & 26.03mm on left side. Although there are great variation found in the position of MF in previous studies. The present study helps in dental anaesthesia and also would help dental surgeons to avoid complications.