上颌侧切牙中两个牙内陷与一个牙外突并存：一例报告
Co-existence of two dens invaginations with one dens evagination in a maxillary lateral incisor: a case report.
作者信息
Satvati Seyed Amir, Shooriabi Mohammad, Sharifi Rouhollah, Parirokh Masoud, Sahebnasagh Marzieh, Assadian Hadi
机构信息
Assistant Professor, Department of Endodontics, School of Dentistry, North Khorasan University of Medical Sciences, Bojnourd, Iran.
Assistant Professor, Department of Oral Medicine, School of Dentistry Jundishapur University of Medical Sciences, Ahvaz, Iran.
出版信息
J Dent (Tehran). 2014 Jul;11(4):485-9. Epub 2014 Jul 31.
A case with two simultaneous dens invaginations (DIs) and one dens evagination (DE) in a permanent maxillary lateral incisor is reported for the first time in a 21-year-old girl. DE known as talon cusp of the anterior teeth is a rare entity and its co-existence with DI has been reported scarcely in the literature. Simultaneous occurrence of two DIs with one DE has not been reported elsewhere. Undoubtedly, familiarity with the internal anatomy of such a rare condition can help prevent pulpal disease while performing restorative procedures.
首次报道了一名21岁女孩的恒上颌侧切牙同时出现两个牙内陷（DIs）和一个牙外突（DE）的病例。DE即所谓的前牙鹰爪尖，是一种罕见的情况，其与DI并存的情况在文献中鲜有报道。两个DIs与一个DE同时出现的情况在其他地方尚未见报道。毫无疑问，熟悉这种罕见情况的内部解剖结构有助于在进行修复手术时预防牙髓疾病。
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