Howat A P, Rout P G
Br J Orthod. 1986 Jan;13(1):49-52. doi: 10.1179/bjo.13.1.49.
Recurrent swelling of the lips may be due to a number of causes. A case is presented of recurrent swelling of the upper lip caused by trauma from a displaced and apically dilacerated 1. There was abnormal development of 32 which were also displaced although 123 appeared unaffected. The surgical, endodontic and orthodontic management of this problem is discussed.
唇部反复肿胀可能由多种原因引起。本文报告一例因移位且根尖部弯曲的1号牙外伤导致上唇反复肿胀的病例。32号牙发育异常且也有移位，而123号牙似乎未受影响。本文讨论了该问题的外科、牙髓病学及正畸治疗方法。
