Nicholson M L
Anat Rec. 1985 May;212(1):110-2. doi: 10.1002/ar.1092120116.
Eighty dry, adult human mandibles of East Indian ethnic origin and bilateral eruption of third molar teeth were examined to measure the location of the mandibular foramen. The position of the foramen was found to be variable. However, the foramen was predominantly located at the anteroposterior midpoint of the ramus halfway between the mandibular notch and the lower surface of the mandible and two thirds of the way down a line joining the coronoid process to the angle of the mandible. In the majority of the mandibles studied the foramen was located below the occlusal surfaces of the molar teeth. It is concluded that the marked variability in the position of the mandibular foramen may be responsible for an occasional failure to block the inferior alveolar nerve.
对80具东印度人种来源的干燥成人下颌骨以及第三磨牙双侧萌出情况进行了检查，以测量下颌孔的位置。发现该孔的位置存在变异。然而，该孔主要位于下颌支前后中点，在下颌切迹与下颌骨下表面之间的中点，以及在连接冠突至下颌角的线向下三分之二处。在所研究的大多数下颌骨中，该孔位于磨牙咬合面下方。得出的结论是，下颌孔位置的显著变异可能是导致偶尔下牙槽神经阻滞失败的原因。
