连续波热牙胶在后牙弯曲根管治疗中的作用

摘要

目的:评价连续波热牙胶根管充填技术(continuous wave of condensation technique,CW)充填后牙弯曲根管的效果.方法:选取2008年6月～2010年1月确诊为牙髓根尖周病的后牙弯曲根管60例,随机分为三组(每组各20例),实验组分别采用连续波热牙胶、ObturaⅡ、冷牙胶侧压三种方法充填根管,记录单个根管的根管充填时间,根充后即刻拍X线牙片评价根充效果,术后半年定期复查评价疗效.比较三种充填方法的根充时间、充填效果以及疗效.结果:连续波热牙胶组根管充填时间少于Obtura Ⅱ与冷牙胶侧压组,充填效果优于冷牙胶侧压组,疗效优于Obtura Ⅱ组与冷牙胶侧压组.结论:连续波热牙胶根管充填适用于后牙弯曲根管,操作快速有效,是一种值得在临床推荐使用的根管充填方法.%Objective:To evaluate the effect of curved canal obturation in posterior teeth using continuous wave of condensation technique Method: 60 cases with curved canals of posterior teeth which need root canal therapy (RCT) were selected and followed up 1～3 years.The patients were randomly divided into three groups of 20 teeth each.The teeth from group A, group B and group C were obturated Using continuous wave of condensation technique, Obtura Ⅱ condensation technique and cold laterally compacted technique, respectively.The patients were recalled and observed after 6 months. Result:The continuous wave group took the shortest time among these three groups.Tbe continuous wave group resulted in a significantly greater density compared with cold lateral compaction group. The continuous wave group resulted in a significantly better clinical evaluation compared with compared with the other two groups. Conclusion: Continuous wave obturation technique is rapid, simple and effective in obturating curved canals of posterior teeth, and it should be recommanded in clinic.