三种根管预备器械在老年人下颌中切牙的研究

来源 :中华口腔医学会全科口腔医学专业委员会第六次学术会议暨广东省口腔医学会全科口腔医学专委会2015年年会 | 被引量 : 0次 | 上传用户:qinqincy
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  目的:比较Protaper 镍钛锉、WaveOne 镍钛锉以及手用不锈钢K 锉在老年人下颌中切牙的根管预备效果。方法:收集因牙周病拔出的老年人下颌中切牙90 颗随机分为3 组,分别在显微镜下运用Protaper 镍钛锉、WaveOne 镍钛锉以及不锈钢锉进行根管预备,预备过程中观察从根尖孔推出的牙本质碎屑与液体,用预先称量的离心管收集,测量推出根尖孔液体的质量与牙本质碎屑的质量。
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