基于锥形束CT对重庆地区人下颌第一前磨牙根管形态及牙根数目的研究

发布时间：2018-06-02 14:43

  本文选题：锥形束CT + 下颌第一前磨牙　； 参考：《华中科技大学学报(医学版)》2014年05期

【摘要】：目的通过锥形束CT数字影像研究重庆地区人下颌第一前磨牙的根管形态及牙根数目。方法筛选重庆地区567例患者的锥形束CT数字影像(男:293例,女:274例),共1 124颗下颌第一前磨牙,通过i-CAT软件对其轴面、矢状面、冠状面进行分析,记录其根管形态及牙根数目。结果 1 124颗下颌第一前磨牙参考Vertucci根管形态分类法进行分类,发生率分别为:Ⅰ型71.17%,多根管型28.83%[其中Ⅱ型4.45%,Ⅳ型1.16%,V型7.38%,Ⅸ型(双根双根管)13.61%,X型(其他)2.22%];左右侧下颌第一前磨牙同一根管类型发生率相比较,差异均无统计学意义(P0.05);男性多根管发生率(32.29%)高于女性(25.18%),差异具有统计学意义(P=0.009)。结论重庆地区人下颌第一前磨牙根管系统中多根管及双牙根的发生率较高,根管类型多样,且有性别差异。通过对根管系统的了解,有助于提高根管治疗的成功率。
[Abstract]:Objective to study the root canal morphology and root number of human mandibular first premolars in Chongqing by conical beam CT digital imaging. Methods A total of 1 124 mandibular first premolars were selected from 567 patients (male: 293, female: 274). The axial plane, sagittal plane and coronal plane were analyzed by i-CAT software, and the root canal morphology and root number were recorded. Results 1,124 mandibular first premolars were classified according to Vertucci root canal classification. The incidence rates were: type 鈪，

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