一九八六年以来,我们用空管法治疗八例根尖周病伴瘘管,疗效显著。八例共10颗患牙,患者年龄最大者42岁。最小者25岁.患牙均有不同程度叩痛,多数牙有变色,其中4例伴牙瘘,1例伴皮瘘。均为“急(慢)性根尖周炎”。用空管法治疗.方法:常规处理根管,根管内封入 F、C 棉捻,五日后取出, Since 1986, we used empty tube method to treat eight cases of periapical disease associated with fistulas, with a significant effect. Eight cases of a total of 10 teeth, the oldest patient 42 years old. The smallest is 25. There are varying degrees of pain in each tooth, most of the teeth have discoloration, including 4 cases with fistula, 1 case with fistula. All are “acute (slow) apical periodontitis.” With empty tube method.Methods: The root canal was routinely treated, the F and C cotton twines were sealed in the root canal, and taken out after five days,