Tamse A, Zilburg I, Halpern J
Department of Endodontology, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Israel.
Int Endod J. 1998 Mar;31(2):127-32. doi: 10.1046/j.1365-2591.1998.00129.x.
Vertical root fractures in endodontically treated teeth occur frequently in teeth or roots in which their mesiodistal dimension is narrow, such as the maxillary upper premolars. Two cases of vertical root fractures in two adjacent maxillary reconstructed teeth are presented. As in many cases of vertical root fractures, the primary diagnosis was of endodontic treatment failure. The final diagnosis of the fractures was made either by the radiograph showing separation of root segments in one case, or by surgical exploration in the other. In both cases, tooth extraction was unavoidable.
根管治疗后的牙齿垂直根折在近远中径较窄的牙齿或牙根中较为常见，如上颌前磨牙。本文报告两例相邻上颌重建牙垂直根折病例。与许多垂直根折病例一样，最初诊断为根管治疗失败。其中一例通过X线片显示牙根段分离确诊骨折，另一例通过手术探查确诊。两例均不可避免地进行了拔牙。
