Phillips J L, Weller R N, Kulild J C
U.S. Army Dental Activity, Fort Polk, LA.
J Endod. 1990 May;16(5):221-3. doi: 10.1016/s0099-2399(06)81674-2.
Seventy-five adult human mandibles were examined to determine the size, orientation, and position of the mental foramen. The average size of the foramen was found to be larger on the left side of the mandible and its usual direction of exit was in a posterior-superior direction. The most common location of the mental foramen was inferior to the crown of the second premolar and approximately 60% of the distance from the buccal cusp tip of that tooth to the inferior border of the mandible.
对75具成人人类下颌骨进行检查，以确定颏孔的大小、方向和位置。发现颏孔的平均大小在左侧下颌骨上较大，其通常的出孔方向为后上方。颏孔最常见的位置在第二前磨牙牙冠下方，约为该牙颊尖至下颌骨下缘距离的60%。
