Department of Oral and Maxillofacial Surgery, Ataturk University, Erzurum/Turkey.
Med Oral Patol Oral Cir Bucal. 2010 Mar 1;15(2):e398-400.
Traumatic injury to a primary tooth and/or a bone fracture has the potential to damage the underlying permanent tooth germ which may disturb its development. The extent of the malformation depends on the developmental stage of the permanent tooth and the intensity of the trauma. The presence of infection may be a predictive factor for these abnormalities. Open surgical procedures can also potentially cause impaction and developmental disturbances. Several developmental alterations such as discolouration, hypoplasia, crown dilaceration, root angulation or dilaceration, sequestration of permanent tooth buds and disturbance in eruption have been reported in permanent teeth after trauma. However, odontoma-like malformations and partial or complete arrest of root formation are rare complications developed after trauma. This article presents a rare case with simultaneous occurrence of an odontoma-like malformation and complete and partial arrested root formations as the results of maxillofacial trauma. Almost all pediatric fractures must be managed with closed reduction as much as possible. However, if it is necessary to perform an open reduction, careful attention must be paid during placement of the osteosynthetic plates and screws; and tooth bud development must be followed periodically.
外伤性损伤原发性牙齿和/或骨骨折有潜在的破坏的基础的恒牙胚，这可能会干扰其发育。畸形的程度取决于恒牙的发育阶段和创伤的强度。感染的存在可能是这些异常的预测因素。开放手术也可能导致阻生和发育障碍。外伤性后恒牙已报道有几种发育改变，如变色、发育不全、冠扭曲、根弯曲或扭曲、恒牙胚的隔离和萌出障碍。然而，牙瘤样畸形和根形成部分或完全阻滞是创伤后罕见的并发症。本文介绍了一例上颌骨外伤后同时发生牙瘤样畸形和完全及部分根形成阻滞的罕见病例。几乎所有的儿童骨折都必须尽可能采用闭合复位治疗。然而，如果需要进行开放复位，在放置骨板和螺钉时必须小心注意；并且必须定期随访牙胚的发育。
