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目的:分析口腔根管治疗技术治疗儿童牙髓及根尖周类疾病的应用效果.方法:选取本院2019年11月-2020年11月诊治的78例儿童牙髓及根尖周类疾病患儿开展本次试验研究,随机将其均分为对照组39例和观察组39例,分别给予常规根管治疗和一次性根管治疗,比较两组临床疗效.结果:与对照组治疗有效率相比,观察组明显偏高(P＜0.05).结论:给予儿童牙髓及根尖周类疾病患儿一次性根管治疗能够显著提升临床疗效,具有推广价值.“,”Objective: To analyze the application effect of oral root canal therapy in the treatment of pulp and periapical diseases in children. Methods :78 cases of children with pulp and periapical diseases in our hospital from November 2019 to November 2020 were selected to carry out this experimental study. They were randomly divided into the control group ( 39 cases) and the observation group ( 39 cases). They were given conventional root canal therapy and one — time root canal therapy respectively. The clinical efficacy of the two groups was compared. Results: The effective rate of the observation group was significantly higher than that of the control group ( P ＜ 0. 05 ). Conclusion: one child with pulp and periapical diseases should be treated Secondary root canal therapy can significantly improve the clinical efficacy, which has the value of promotion.