期刊文献+

核预备时机对纤维桩核系统根尖微渗漏的研究

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摘要 目的评价纤维桩核系统中纤维桩粘结后两种核预备时机,对根尖区封闭性能的影响。方法采集所在三级甲等医院,口腔颌面外科因正畸或牙周病拔除的新鲜离体前磨牙35颗,随机分四组,经液体输送法检测四组微渗漏的量,于扫描电镜下观察并测量四组粘接界面的缝隙宽度。结果与结论即刻核预备可致粘结剂与不同部位的牙本质间出现明显的缝隙,进而加大根尖微渗漏量。
作者 张楠
出处 《齐齐哈尔医学院学报》 2015年第20期3043-3044,共2页 Journal of Qiqihar Medical University
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