下颌神经阻滞麻醉是口腔科门诊最为常用的麻醉方法之一 ,但临床上往往出现麻醉失败的情况 ,关于这方面的总结未见报道 ,对引起失败的原因说法不一。我院自 1996年 7月至 1999年 3月对 180 0例患者进行了下颌神经阻滞麻醉 ,并对结果进行了认真分析和总结 ,现报告如下。1　资料和 Mandibular nerve block anesthesia is one of the most commonly used anesthesia methods in dental clinic, but the clinical failure of anesthesia often appears. There is no report on the summary of this aspect, and the reasons for the failure are different. Our hospital from July 1996 to March 1999 on 180 0 patients underwent mandibular nerve block anesthesia, and the results were carefully analyzed and summarized, are as follows. 1 data and