Kieser J A, Paulin M, Law B
Department of Oral Sciences and Orthodontics, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
Clin Anat. 2004 Mar;17(2):107-11. doi: 10.1002/ca.10196.
The purpose of this study was to investigate the vertical positioning and intrabony branching patterns of the inferior alveolar nerve (IAN) in 39 edentulous human cadaveric mandibles by buccal microdissection. Dissected mandibles were classified on the basis of the height of the IAN within the body of the mandible and the branching pattern of the IAN. The IAN was located in the superior part of the body of the mandible in 30.7% (12/39) of cases, all of which showed a small posterior molar plexus of branches. In 69.2% (27/39) of cases the IAN was half-way or closer to the inferior border of the mandible. Of these latter cases, 41% demonstrated a small, posterior molar plexus of branches, 37% showed posterior and anterior plexuses, and 22% showed either no branches or a single trunk with a small number of single branches directed at the superior border of the mandible. These findings were rendered in 3D computer format for instructional purposes.
本研究的目的是通过颊侧显微解剖，调查39例无牙颌人类尸体下颌骨中下颌神经（IAN）的垂直定位和骨内分支模式。根据IAN在下颌骨体内的高度以及IAN的分支模式对解剖后的下颌骨进行分类。在30.7%（12/39）的病例中，IAN位于下颌骨体的上部，所有这些病例均显示出较小的磨牙后分支丛。在69.2%（27/39）的病例中，IAN位于下颌骨下缘的中部或更靠近下缘。在这些病例中，41%显示出较小的磨牙后分支丛，37%显示出前后分支丛，22%显示无分支或单一主干，有少量单分支指向下颌骨上缘。为教学目的，这些发现以三维计算机格式呈现。
