Sharma Ritu, Maroli Kriti, Sinha Nidhi, Singh Bijay
Professor, Department of Conservative Dentistry and Endodontics, Sharda University, Noida, Uttar Pradesh, India.
Reader, Department of Conservative Dentistry and Endodontics, Jodhpur Dental College General Hospital, Jodhpur, Rajasthan, India.
J Int Oral Health. 2014 Jul;6(4):80-4.
This case report describes an endodontically managed maxillary first molar with an unusual morphology of five canals. Maxillary first molar has one of the most complex root and canal anatomy. The greatest variations observed are the presence of two canals in the mesiobuccal root of maxillary molar, canals in the furcation area and the presence of lateral and accessory canals. The incidence of two distobuccal canals in itself is quite rare. A literature search revealed only a few case reports of four buccal canals in maxillary first molars. This case report presents the successful root canal treatment of the maxillary first molar with four roots and five canals. The use of spiral computed tomography scan in this case greatly contributed towards confirming this rare morphology.
本病例报告描述了一例经牙髓治疗的上颌第一磨牙，其根管形态异常，有五条根管。上颌第一磨牙具有最复杂的牙根和根管解剖结构之一。观察到的最大变异是上颌磨牙近中颊根存在两条根管、根分叉区有根管以及存在侧支根管和副根管。远中颊根有两条根管的情况本身就相当罕见。文献检索显示，仅有少数上颌第一磨牙有四条颊根管的病例报告。本病例报告展示了对具有四个牙根和五条根管的上颌第一磨牙进行根管治疗的成功案例。在此病例中使用螺旋计算机断层扫描对确认这种罕见的形态有很大帮助。
