使用锥形束计算机断层扫描技术观察双侧上颌第二磨牙罕见的根管形态
Rare Root Canal Configuration of Bilateral Maxillary Second Molar Using Cone-beam Computed Tomographic Scanning.
作者信息
Zeng Chang, Shen Ya, Guan Xiaoyue, Wang Xin, Fan Mingwen, Li Yuhong
机构信息
Department of Operative Dentistry and Endodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China; State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, The University of British Columbia, Vancouver, British Columbia, Canada.
出版信息
J Endod. 2016 Apr;42(4):673-7. doi: 10.1016/j.joen.2015.12.028. Epub 2016 Feb 23.
The aim of this article was to present a right maxillary second molar with an unusual root canal morphology of 4 roots and 5 canals as confirmed by cone-beam computed tomographic (CBCT) imaging. The tooth had a C-shaped mesiobuccal root (CBCT imaging revealed that the root was closer to the palate than the buccal side) with 2 canals, 2 fused distobuccal roots with 2 separate canals, and 1 normal bulky palatal root with 1 canal. After thoroughly examining the rare anatomy, root canal treatment was applied on the tooth. This article shows the complexity of maxillary second molar variation and shows the significance of CBCT imaging in the confirmation of the 3-dimensional anatomy of teeth and endodontic treatment.
本文的目的是展示一颗右上颌第二磨牙，其根管形态异常，有4个牙根和5条根管，这一情况经锥形束计算机断层扫描（CBCT）成像得以证实。该牙齿有一个呈C形的近中颊根（CBCT成像显示该牙根靠近腭侧而非颊侧），有2条根管，2个融合的远中颊根有2条独立的根管，以及1个正常粗大的腭根有1条根管。在对这种罕见的解剖结构进行全面检查后，对该牙齿实施了根管治疗。本文展示了上颌第二磨牙变异的复杂性，并展示了CBCT成像在确认牙齿三维解剖结构和牙髓治疗中的重要性。
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