Genú P R, Vasconcelos B C E
Department of Oral and Maxillofacial Surgery, University of Pernambuco, Pernambuco, Brazil.
Int J Oral Maxillofac Surg. 2008 Oct;37(10):923-8. doi: 10.1016/j.ijom.2008.05.016. Epub 2008 Sep 18.
This study is a randomized control split-mouth non-blinded prospective trial, the aim of which was to evaluate clinically the frequency and type of injury to the inferior alveolar nerve (IAN) following mandibular third molar surgery using or not using the tooth section technique. The sample consisted of 50 lower third molars in 25 patients, in the control group the tooth section technique was not used, and it was used in the experimental group. The outcomes have shown a frequency of 8% of IAN injury for both groups (in both genders), and there were no statistically significant associations between the use of the tooth section technique and a diminished incidence of IAN injury or the presence of radiographic signs of a direct relationship between the tooth/nerve/mandibular canal and IAN injury. There was no association between deformities of the tip of dental needles and nerve injury. Temporary hypoesthesia and paresthesia were the commonest nerve injuries. All patients recovered from these injuries within six months.
本研究是一项随机对照、分口、非盲法的前瞻性试验，其目的是从临床角度评估使用或不使用牙齿分割技术进行下颌第三磨牙手术后下牙槽神经（IAN）损伤的频率和类型。样本包括25例患者的50颗下颌第三磨牙，对照组未使用牙齿分割技术，实验组使用了该技术。结果显示两组（无论男女）IAN损伤频率均为8%，使用牙齿分割技术与IAN损伤发生率降低或牙齿/神经/下颌管与IAN损伤之间存在影像学直接关系的迹象之间无统计学显著关联。牙针尖端畸形与神经损伤之间无关联。暂时性感觉减退和感觉异常是最常见的神经损伤。所有患者均在6个月内从这些损伤中恢复。
