MTA在根尖成形中的应用  

Management of the non-vital teeth with open apices using mineral trioxide aggregate

作　　者：盛列平[1] 戴少文[1] 

机构地区：[1]杭州浙江大学医学院邵勉夫医院牙科,310016

出　　处：《实用口腔医学杂志》2004年第4期440-442,共3页Journal of Practical Stomatology

摘　　要：目的 :介绍MTA在根尖成形中操作方法及其特点。方法 :选取来我院就诊根尖未闭合、牙髓坏死的年轻恒牙 ,用MTA对其根尖部进行填塞 ,余留空间用牙胶充填。结果 :所有病例在 6月后复诊时 ,无不良症状 ,X片示根尖部喇叭口闭合 ,阴影消失。结论 :MTA在根尖成形方面 ,具有操作方便 ,疗效确切的优点。Objective:To describe the procedures for management of the non-vital teeth with open apices using mineral trioxide aggregate(MTA). Methods:Six non-vital teeth with open apices in 6 patients aged 10～20 years old were treated with MTA. After a rubber dam was applied, a large access was made for debridement of the canal. Calcium hydroxide paste was placed in the canal for 1 week for disinfection. After the calcium hydroxide was rinsed from the canal at the subsequent appointment, a mixture of MTA powder with sterile water was carried into the canal with an amalgam carrier. The mix was condensed to the apical extent using pluggers to create a 3-4 mm apical plug. To ensure proper setting of MTA, a moist cotton pellet was placed in the canal over the material and the tooth was temporized, The remainder of the canal was obturated with gutta-percha and sealer or bonded composite resin was placed in the access cavity at next visit. Results:The patients had no abnormal symptoms and signs after apical plug. Radiograph demonstrated all open apices healing 6 months after obturation. Conclusion:MTA is effective and convenient in the management of non-vital teeth with open apices.

关 键 词：根尖成形术 根尖闭合术 根管治疗 前磨牙 

分 类 号：R781.05[医药卫生—口腔医学]