Loyal Poonamjeet Kaur, Butt Fawzia, Ogeng'o Julius Alexander
Department of Human Anatomy, University of Nairobi, Nairobi, Kenya.
Craniomaxillofac Trauma Reconstr. 2013 Dec;6(4):251-6. doi: 10.1055/s-0033-1356756. Epub 2013 Oct 8.
Knowledge of the branching pattern of the mental nerve is an important consideration during placement of tooth implants and reconstructive plates. It is known to display population variations and data for the same is scarce form the sub-Saharan region. With the recent increase in surgical interventions in the mandibular region in Kenya, a detailed description of mental nerve is warranted. A total of 64 mental nerves were dissected and branching pattern was noted. Single mental nerve was present in 60 (93.7%) cadavers while double mental nerves occurred in 3 (4.7%) and accessory in 1(1.6%). Most common pattern was bifurcation (39%) followed by trifurcation (34%), single (19%), and quadrification (8%). The double and triple branches were seen to further divide into two to three subbranches with diverse patterns. Side symmetry in branching was seen in four (6.25%). These are important anatomical considerations during placement of reconstructive plates for mandibular trauma and administration of mental nerve blocks.
了解颏神经的分支模式是植入牙齿和放置重建钢板时的重要考量因素。已知其存在人群差异，而撒哈拉以南地区关于此的数据稀缺。随着肯尼亚下颌区域外科手术干预的近期增加，有必要对颏神经进行详细描述。共解剖了64条颏神经并记录其分支模式。60具（93.7%）尸体中存在单支颏神经，3具（4.7%）为双支颏神经，1具（1.6%）有副颏神经。最常见的模式是二叉分支（39%），其次是三叉分支（34%）、单支（19%）和四叉分支（8%）。双支和三支分支进一步分为两到三个具有不同模式的亚分支。在四具（6.25%）尸体中观察到分支的侧对称性。这些是下颌骨创伤重建钢板放置和颏神经阻滞给药过程中的重要解剖学考量因素。
