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有效的局部麻醉是治疗口腔疾患的基本要求。而许多患者,并不能达到良好的麻醉效果,在很多情况下是由于解剖变异所致。本文讨论了4种常见变异及处理方法。 ①下颌舌骨神经感觉副支 该支是下齿槽神经的分支,下颌舌骨神经在下齿槽神经进入下颌孔前发出,主要为运动神经,也传导某些下牙的感觉信号,这已为几项研究所证实。由于这种传入性支配,可致传统的下齿槽阻滞麻醉失去效果。有研究发现,下颌舌骨神经在高于下颌孔约14.7mm处分出,这段距离可能超出麻
Effective local anesthesia is the basic requirement for the treatment of oral disorders. Many patients do not achieve good anesthetic effects, in many cases due to anatomical variations. This article discusses four common variations and treatments. ① mandibular hypospadias sensory accessory branch This branch is a branch of the inferior alveolar nerve, mandibular hymenal nerve in the inferior alveolar nerve into the mandibular hole issued before, mainly motor nerve, but also some of the lower teeth sensory signal transmission, which has been Several studies have confirmed. Because of this affective dominance, the traditional lower alveolar block anesthesia loses its effect. Some studies have found that the mandibular hyoid nerve at about 14.7mm above the mandibular foramen out of this distance may exceed the hemp