空管疗法是近年来用于治疗牙髓病和根尖周病的有效方法之一。作者在普通空管疗法药物中加入灭滴灵,治疗50例患有慢性根尖周病的病牙57颗,成功率达92.98％。在未加灭滴灵的普通空管疗法的对照组中,有45例患者病牙49只,成功率为77.5％,与国内报道的普通 Air tube therapy is one of the effective methods for the treatment of endodontic disease and endodontic disease in recent years. The authors added metronidazole to common air traffic control drugs in the treatment of 57 patients with chronic apical periodontal disease 57, the success rate of 92.98%. In the control group without ordinary metronidazole metronidazole treatment, there are 45 patients with 49 cases of disease teeth, the success rate was 77.5%, and the domestic reported normal