应用锥形束CT对华南地区924颗下颌第1磨牙的根管形态学研究

发布时间：2018-03-17 17:42

  本文选题：锥形束CT　切入点：下颌第磨牙　出处：《中国临床解剖学杂志》2017年03期 　论文类型：期刊论文

【摘要】：目的应用锥形束CT(cone beam computed tomography,CBCT)观察下颌第1磨牙的根管解剖形态,为临床根管治疗提供参考依据。方法由两名牙体牙髓专业医生筛选我院口腔科自2014年12月至2015年12月进行CBCT检查的500名患者,共计924颗下颌第1磨牙的影像资料,分别记录患者的基本信息、牙位、根管构型及钙化情况,并进行统计学分析。结果 424名存在双侧下颌第1磨牙的患者中,76.2%(323)根管构型完全对称。924颗下颌第1磨牙中,双根率为76.7%(709),3根率即远舌根发生率为23.3%(215);近中根最常见根管类型为Vertucci Ⅳ型,占71.97%(665),其次为Ⅱ型,占23.70%(219);远中根最常见根管类型为Ⅰ型,占49.35%(458),其次为Ⅳ型占31.82%(292)。存在远舌根时,远舌根管口与远颊根管口距离为(2.94±0.27)mm。下颌第1磨牙根管钙化率与年龄有关,老年人钙化率高,中年人次之。结论华南地区人群下颌第1磨牙根管形态多样,变异性较大;CBCT是观察根管形态的有效工具,可以为根管治疗提供辅助诊断。
[Abstract]:Objective to observe the anatomic morphology of the root canal of mandibular first molar with CT(cone beam computed tomography-CBCTs. Methods from December 2014 to December 2015, 500 patients with CBCT were selected by two dental pulp doctors, and a total of 924 mandibular first molars were obtained. The basic information, tooth position, root canal configuration and calcification were recorded and analyzed statistically. Results out of 424 patients with bilateral mandibular first molars, there were 76.2and 323) complete symmetry of root canal configuration. 924 mandibular first molars. The most common root canal type was Vertucci 鈪，

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