Bataineh A B
Department of Oral Medicine and Oral Surgery, Jordan University of Science & Technology, Faculty of Dentistry, Irbid-Jordan.
J Oral Maxillofac Surg. 2001 Sep;59(9):1012-7; discussion 1017. doi: 10.1053/joms.2001.25827.
This prospective study reports the rate and factors influencing sensory impairment of the inferior alveolar and lingual nerves after the removal of impacted mandibular third molars under local anesthesia.
There were 741 patients with 741 mandibular third molars removed under local anesthesia during a 3-year period from 1994 to 1997. Standardized data collection included the patient's name, age and gender, side of operation, angulation of the tooth, lingual flap elevation, use of vertical or horizontal tooth division, the experience of the operator, and the occurrence of lingual and/or inferior alveolar nerve paresthesia.
Postoperative lingual nerve paresthesia occurred in 19 patients (2.6%). There was a highly significant increase in the incidence associated with raising of a lingual flap (P <.001). The incidence of inferior alveolar nerve paresthesia was (3.9%). It was highest in the under 20-year-old age group (9.8%), and there was a highly significant relationship to the experience of the operator (P <.001). Statistical analyses revealed that both lingual and inferior alveolar nerve paresthesia were unrelated to the other variables.
The elevation of lingual flaps and the experience of the operator are significant factors contributing to lingual and inferior alveolar nerve paresthesia, respectively.
本前瞻性研究报告了在局部麻醉下拔除下颌阻生第三磨牙后下牙槽神经和舌神经感觉障碍的发生率及相关影响因素。
在1994年至1997年的3年期间，共有741例患者在局部麻醉下拔除了741颗下颌第三磨牙。标准化的数据收集包括患者的姓名、年龄、性别、手术侧、牙齿的角度、舌侧瓣掀起情况、采用垂直或水平分牙、术者经验以及舌神经和/或下牙槽神经感觉异常的发生情况。
术后19例患者（2.6%）出现舌神经感觉异常。与舌侧瓣掀起相关的发生率显著升高（P<.001）。下牙槽神经感觉异常的发生率为3.9%。在20岁以下年龄组中最高（9.8%），并且与术者经验有高度显著的关系（P<.001）。统计分析显示，舌神经和下牙槽神经感觉异常均与其他变量无关。
舌侧瓣掀起和术者经验分别是导致舌神经和下牙槽神经感觉异常的重要因素。
