目的研究一次性根管治疗乳牙牙髓根尖周病的临床疗效。方法选取2013年12月~2015年1月在我院做过治疗乳牙牙髓及根尖周病的168例患儿做此次研究的对象,分为A、B两组。结果两组患者在治疗后疼痛发生率没有统计学差异,A组略有优势。结论一次性根管治疗乳牙牙髓根尖周病无需多次复诊操作,疗效明显。 Objective To study the clinical effect of one-time root canal therapy on apical periodontal disease of deciduous dental pulp. Methods A total of 168 children with pulpitis and periapical periodontitis treated in our hospital from December 2013 to January 2015 were enrolled in this study. The subjects were divided into A and B groups. Results There was no significant difference in the incidence of pain between the two groups after treatment, with a slight advantage in group A. Conclusion One-time root canal treatment of deciduous teeth periapical periodontal disease do not need multiple referral operations, the effect is obvious.