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目的比较必兰麻浸润麻醉与2%利多卡因浸润麻醉法，在上下颌急性牙髓炎患者拔髓中疼痛观察。方法选择上下颌急性牙髓炎患者120名，随机分成二组为、治疗组及对照组，治疗组60例急性牙髓炎患者用必兰麻做浸润麻醉，不分上下颌牙齿；对照组60例急生牙髓炎患者用2%利多卡因做浸润麻醉，不分上下颌牙齿，比较2组的麻醉显效时间、术中疼痛程度，并按t检验法进行医学统计分析。结果治疗组麻醉显效时间、术中疼痛程度明显好于对照组。结论必兰麻浸润麻醉作用于急性牙髓炎比2%利多卡因浸润麻醉作用急性牙髓炎，麻醉起效快、镇痛效果好。“,”Objective To compare shal Lan Ma with 2% lidocaine infiltration anesthesia infiltration anesthesia in the upper jaw acute pulpitis pain observed in patients with spinal cord pul . Methods Patients with acute pulpitis upper and lower jaws 120, were randomly divided into two groups for the treatment group and the control group, the treatment group, 60 cases of patients with acute pulpitis must blue linen anesthesia, regardless of the teeth on the lower jaw; control group of 60 patients with acute pulpitis were born to do with 2% lidocaine infiltration anesthesia, regardless of the upper and lower teeth, compared two groups of anesthetized effective time, intraoperative pain, according to t-test for medical statistical analysis. Effective in the treatment group anesthesia time, intraoperative pain significantly better than the control group. Conclusion Lan Ma anesthesia must act on acute pulpitis than 2% lidocaine anesthetic effects of acute pulpitis, narcotic analgesic effect.