Oguz O, Bozkir M G
Cukurova University, Faculty of Medicine, Department of Anatomy, 01330 Balcall-Adana, Turkey.
West Indian Med J. 2002 Mar;51(1):14-6.
The present study was undertaken to determine the precise location of the mental and mandibular foramina and the surrounding anatomic landmarks. Measurements were made on both right and left sides of each of 34 dried young Turkish adult (30-40 years old) human male mandibles. The mandibles were moderately robust and were from dentulous subjects. The results obtained in the study showed that the distance of the mandibular foramen to the angle of the anterior ramus were 16.9 mm on the right and 16.78 mm on the left. The distance to the posterior side of the ramus was 14.09 mm on the right, and 14.37 mm on the left. The narrowest anteroposterior diameters were 32.8 mm on the right and 32.05 mm on the left. The mandibular foramen is 0.5 mm posterior to the centre of the ramus on the right and 0.75 mm on the left. The distance of the lowest point of mandibular notch to the foramen was 22.37 mm on the right and 22.17 mm on the left. The distance from the mandibular foramen to the inferior border of the ramus in the mid position of the ramus was 30.97 mm on the right and 29.75 mm on the left. The average angle of the mandible (gonial angle) was 120.17 degrees on both sides. The distance of the mental foramen to the inferior border of the mandible was 14.61 mm and 14.29 mm on the right and left, respectively. Its distance to the superior border was 13.62 mm on the right and 14.62 mm on the left. The horizontal dimensions of the mental foramen was 2.93 mm on the right, 3.14 mm on the left and its vertical dimension was 2.38 mm on the right and 2.64 mm on the left. The mental foramen was located below the root of the second premolar in 21 bones (61.76%) on the right and 17 bones (50%) on the left while in the remaining mandibles, the foramen was present between the roots of the first and second premolars in 13 bones (38.2%) on the right and in 17 (50%) on the left. The average angle of the mental foramen was 96.82 degrees.
本研究旨在确定颏孔和下颌孔的精确位置以及周围的解剖标志。对34具干燥的土耳其年轻成年男性（30 - 40岁）下颌骨的左右两侧进行了测量。这些下颌骨骨质中等粗壮，且为有牙颌受试者。研究结果显示，下颌孔到下颌支前缘的距离右侧为16.9 mm，左侧为16.78 mm。到下颌支后侧的距离右侧为14.09 mm，左侧为14.37 mm。最窄的前后径右侧为32.8 mm，左侧为32.05 mm。下颌孔在右侧位于下颌支中心后方0.5 mm处，在左侧位于后方0.75 mm处。下颌切迹最低点到下颌孔的距离右侧为22.37 mm，左侧为22.17 mm。在下颌支中部，下颌孔到下颌支下缘的距离右侧为30.97 mm，左侧为29.75 mm。两侧下颌角（下颌角）的平均角度为120.17度。颏孔到下颌骨下缘的距离右侧为14.61 mm，左侧为14.29 mm。到上缘的距离右侧为13.62 mm，左侧为14.62 mm。颏孔的水平尺寸右侧为2.93 mm，左侧为3.14 mm，垂直尺寸右侧为2.38 mm，左侧为2.64 mm。颏孔在右侧21块骨（61.76%）中位于第二前磨牙牙根下方，左侧17块骨（50%）中位于此位置；而在其余下颌骨中，右侧13块骨（38.2%）和左侧17块骨（50%）中，颏孔位于第一和第二前磨牙牙根之间。颏孔的平均角度为96.82度。
