口腔医学研究

口腔医学研究 ›› 2016, Vol. 32 ›› Issue (1): 59-62.DOI: 10.11839/kqyxzh.2016.01.015

• ·临床研究论著· • 上一篇    下一篇

新疆维吾尔族成人下颌第一前磨牙根管的形态分析

郭静,梁学萍*   

  1. 新疆医科大学第一附属医院牙体牙髓科 新疆 乌鲁木齐 830054
  • 收稿日期:2015-05-26 出版日期:2016-01-28 发布日期:2016-03-21
  • 通讯作者: 梁学萍,E-mail:lxueping156@126.com
  • 作者简介:郭静(1989~),女,河北人,医师,硕士,主要从事口腔内科学临床工作。
  • 基金资助:
    新疆维吾尔自治区自然科学基金(编号:2013211A082)

Analysis of Canal Morphology of Mandibular First Premolar in Uighur Population of Xinjiang.

GUO Jing, LIANG Xue-ping.   

  1. Department of Endodontic, The First Teaching Hospital of Xinjiang Medical University, Urumqi 830054, China
  • Received:2015-05-26 Online:2016-01-28 Published:2016-03-21

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摘要： 目的:采用锥形束CT探讨新疆维吾尔族成人双侧下颌第一前磨牙根管的解剖形态。方法:选100例双侧下颌第一前磨牙的CBCT扫描数据,分析其根管数目及形态、双侧根管对称性、两根管口间的距离和多根管分叉位置,以Vertucci根管分型为标准对根管形态进行分型。结果:下颌第一前磨牙不同根管类型发生率分别为Ⅰ型76.5%,Ⅳ型8.5%,Ⅱ型6%,Ⅴ型4%,Ⅲ型3.5%,C形1.5%;两根管口间距离集中在1~3 mm,根管双侧对称性为85%。下颌第一前磨牙多根管发生率与性别有相关性(P=0.02),而左、右两侧下颌第一前磨牙多根管发生率无差异。结论:下颌第一前磨牙根管解剖结构复杂,多根管发生率超过20%,CBCT可为根管系统提供准确依据。

关键词: 下颌第一前磨牙, 根管形态, 锥形束CT, 维吾尔族

Abstract: Objective: To investigate the canal morphology of bilateral mandibular first premolars in Uighur population of Xinjiang using cone-beam computed tomography (CBCT). Methods: A total of 200 CBCT images of mandibular first premolars were obtained from 100 patients. Tooth position, root canal morphology, symmetry of bilateral mandibular first premolars, and the distance between the 2 root canal orifices of mandibular first premolars were investigated. The classifications of the root canal types were according to Vertucci's type. Results: 1.5% (n=3) of the teeth had a C-shaped root canal system, 76.5% (n=153) had 1 root canal, and 22% (n=44) had 2 root canals from type II to type V. The distance between the 2 root canal orifices of mandibular first premolars was approximately 1-3 mm, and the symmetry in all types of canal classification of mandibular first premolar was 85%. Conclusion: CBCT can provide accurate information of canal system. More than 20% of mandibular first premolars had complex root canal systems showing multi-canal or double root canals.

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