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目的比较部分活髓切断术和间接盖髓术两种方法治疗年轻恒前牙外伤冠折近髓的临床疗效,为临床寻求更佳治疗方法。方法对2005—2008年来济宁口腔医院儿童牙病科就诊的24例前牙外伤患者的31颗冠折近髓的患牙,按患者的就诊顺序随机分成部分活髓切断组(16颗)和间接盖髓组(15颗),分别采用部分活髓切断术和间接盖髓术对患牙进行治疗,随诊观察2年。结果部分活髓切断组的成功率为93.7%,间接盖髓组的成功率为80.0%,两组成功率比较差异无统计学意义(P>0.05)。结论采用部分活髓切断术治疗冠折近髓的年轻恒前牙可能较间接盖髓术更有优势。

Clinical investigation of the two treatment for immature permanent incisors with dentin exposure close to pulp

Objective Discuss the clinical efficacy between the partial pulpotomy and the indirect pulp capping,ask for the better therapies for the patients who have their premature incisors dentin exposure.Methods There were 24 cases including 31 immature permanent incisors divided into partial pulpotomy group（16） and indirect pulp capping group（15） randomly,treated as partial pulpotomy and indirect pulp capping respectively.They were followed up for 2 years.Results The success rate of the partial pulpotomy was 93.7%,and the rate of the indirect pulp capping was 80.0%.Conclusion The use of the partial pulpotomy has an advantage over indirect pulp capping when immature permanent incisors are dentin exposure close to the pulp.