Zhang Zhihui, Wang Xiao, Jiang Liwei, Xu Si
Stomatology Department, Peking University Third Hospital, Beijing, China.
Department of Oral Medicine, Peking University School and Hospital of Stomatology, Beijing, China.
J Dent Sci. 2016 Sep;11(3):343-344. doi: 10.1016/j.jds.2015.12.003. Epub 2016 Mar 29.
Fusion is the union of two normally adjacent tooth germs resulting in the formation of a single large tooth. The incidence of fused teeth is 0.1% in the permanent and 0.5% in the primary dentitions and it may be unilateral or bilateral. The purpose of this article is to report a rare case of unilateral fusion of permanent mandibular lateral incisor and canine with two pulp chambers and a single root canal.
融合是两个通常相邻的牙胚联合，导致形成一颗单一的大牙齿。融合牙的发生率在恒牙列中为0.1%，在乳牙列中为0.5%，且可为单侧或双侧。本文的目的是报告一例罕见的永久性下颌侧切牙与尖牙单侧融合病例，该病例有两个牙髓腔和一个根管。
