Shah Manish, Patel Pathik, Desai Parth, Patel Jayanti R
Department of Endodontics, Karnavati School of Dentistry, Gandhinagar, Gujarat, India.
BMJ Case Rep. 2014 Jan 20;2014:bcr2013201310. doi: 10.1136/bcr-2013-201310.
Root canal anatomy variations present a constant challenge in successful diagnosis and endodontic treatment, especially the multirooted teeth. Maxillary first molar is the most commonly treated tooth yet with frequent failures because of undetected canals, especially the mesiobuccal second canal (MB2) with more frequency and distobuccal second canal (DB2) with quite a less frequency. Also, there are limited chances to find MB2 in maxillary second molars. We present two such cases, each of maxillary first and second molar with extra distobuccal and mesiobuccal canals, respectively.
根管解剖变异给成功诊断和牙髓治疗带来了持续挑战，尤其是多根牙。上颌第一磨牙是最常接受治疗的牙齿，但由于未检测到的根管，尤其是近中颊侧第二根管（MB2）出现频率较高，而远中颊侧第二根管（DB2）出现频率较低，治疗失败的情况屡见不鲜。此外，在上颌第二磨牙中发现MB2的机会有限。我们展示了两例这样的病例，分别是上颌第一磨牙和第二磨牙，各自存在额外的远中颊侧和近中颊侧根管。
