Buyukkurt M Cemil, Aras Mutan Hamdi, Caglaroglu Murat
Department of Oral and Maxillofacial Surgery, Atatürk University, Erzurum, Turkey.
Quintessence Int. 2008 Oct;39(9):767-70.
Although the maxillary permanent canine is frequently misplaced, misplacement of the mandibular canine is a comparatively rare event. Pre-eruptive migration of a tooth across the midline is called transmigration. This condition has not been reported for teeth other than canines. Dentigerous cysts can involve any tooth, but mandibular canines are rarely affected like premolars and molars. Odontogenic cysts associated with impacted teeth are usually removed through an intraoral approach. However, on rare occasion, an extraoral approach is required to remove these lesions. A case of transmigrant mandibular canine associated with a dentigerous cyst that required an extraoral submental approach for removal is presented.
虽然上颌恒尖牙常常位置异常，但下颌尖牙位置异常相对少见。牙齿在萌出前越过中线的移动称为异位萌出。除了尖牙之外，这种情况在其他牙齿中尚未见报道。含牙囊肿可累及任何牙齿，但下颌尖牙很少像前磨牙和磨牙那样受到影响。与阻生牙相关的牙源性囊肿通常通过口内途径切除。然而，在极少数情况下，需要采用口外途径来切除这些病变。本文报告了1例与含牙囊肿相关的异位萌出下颌尖牙病例，该病例需要采用口外颏下途径进行切除。
