ProTaperNext锉和WaveOne锉根管成形能力的对比研究

发布时间：2017-12-27 03:04

本文关键词：ProTaperNext锉和WaveOne锉根管成形能力的对比研究　出处：《口腔医学研究》2016年09期 　论文类型：期刊论文

【摘要】：目的:比较机用ProTaperNext和WaveOne在弯曲树脂模拟根管中的成形能力。方法:选取统一规格的透明树脂模拟根管40个,将其随机分为2组,分别使用ProTaperNext和WaveOne锉以冠向下技术预备两组树脂模拟根管。使用ImagePro Plus软件测量根管弯曲半径和弯曲度的变化以及各测量点去除树脂量,计算树脂去除总量和两组器械的中心定位力,同时记录和分析根管工作长度的变化和器械变形、分离等参数。结果:两种器械预备根管时,均能保持较好的工作长度,不易发生器械分离,能够较好的维持根管原始走形,但在根尖段,WaveOne预备后的根管较易发生偏移。结论:ProTaperNext与WaveOne相比,在预备重度弯曲根管时具有良好的根管成形能力。
[Abstract]:Objective: To compare the forming ability of ProTaperNext and WaveOne in bending resin to simulate the root canal. Methods: a unified specification of transparent resin was used to simulate 40 root canals. They were randomly divided into 2 groups. ProTaperNext and WaveOne files were used to prepare two groups of resin simulated root canals, respectively. ImagePro Plus software was used to measure the change of root radius and curvature, and the amount of resin removed at each measurement point. The total amount of resin removal and the central positioning force of two groups of instruments were calculated. Meanwhile, the parameters of root canal working length and the deformation and separation of instruments were recorded and analyzed. Results: two kinds of instruments in root canal preparation, can maintain good working length, easy occurrence of instrument separation, can maintain the original canal shape is good, but in the apical segment, WaveOne after root canal preparation is easy to shift. Conclusion: compared with WaveOne, ProTaperNext has good root canal forming ability in the preparation of severe curved root canal.
【作者单位】：武汉大学口腔医学院湖北省口腔基础医学重点实验室-省部共建国家重点实验室培育基地口腔生物医学教育部重点实验室(武汉大学);
【基金】：基金项目国家自然科学基金资助项目(编号:81371105,81570942)
【分类号】：R781.05
【正文快照】： 根管预备是根管治疗的关键步骤,根管治疗的成功与否很大程度上取决于根管预备的质量。根管预备主要包括根管清理和根管成形。根管清理是通过机械和化学方法清除根管系统内感染的牙髓组织、致病微生物及其代谢产物。根管成形是将根管预备成一定的形态,以利于根管冲洗和充填。理

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