摘要:目的评价Protaper机用镍钛根管锉在弯曲根管预备中的临床效果及工作效率。方法随机将60个患牙192个根管分为三组,每组64个根管。实验组用Protaper机用镍钛根管锉预备根管,对照组A用Protaper手用镍钛根管锉预备根管,寿照组B用不锈钢K型锉预备根管,记录每组操作时间和根管治疗术后反应情况。结果实验组根管预备所用时间及术后反应明显少于对照组,P〈0.05;实验组和对照组A根管预备术后反应明显少于对照组B,P〈0.05。结论ProtaPer机用镍钛根管锉在弯曲根管预备中有明显的优越性。
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