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机用镍钛器械预备后牙弯曲根管产生根管偏移的情况 被引量:2

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摘要 目的 探讨3种机用镍钛器械预备后牙弯曲根管产生根管偏移的情况.方法 选取2013年8月~2015年8月我院实施正畸或牙周病拔除患者的下颌磨牙近中弯曲根管60个作为研究对象,随机将其分成三组Mtwo组、K3组及Protaper组,并选取Flexofile作为对照组,将根管预备到30号器械,比较分析四组牙根管偏移情况.结果 对照组根管偏移最大,显著大于Mtwo组、K3组,差异有统计学意义(P〈0.05);而protaper组根尖区切削较多;在根中段,对照组中88%根管中心向远中侧移动,其余镍钛三组仅有30%根管中心向远中移动.结论 Mtwo组与K3组根管偏移程度较小、向远中侧偏移几率也较小,使用Mtwo与K3能获得良好的根管成形和中心定位力.
作者 满都拉
出处 《全科口腔医学电子杂志》 2016年第4期99-99,101,共2页 Electronic Journal of General Stomatology
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