Department of Conservative Dentistry, School of Dentistry, Chonnam National University, Gwangju, Korea.
Am J Orthod Dentofacial Orthop. 2011 Mar;139(3):407-11. doi: 10.1016/j.ajodo.2008.11.032.
Root damage is a significant complication of orthodontic miniscrew implant placement. Although root damage is rare, its proper management should be clearly understood by practitioners. This article reports the iatrogenic root perforation of a mandibular lateral incisor caused by the placement of a miniscrew. Despite a large radiolucent area caused by chronic apical periodontitis, the perforation was successfully repaired by using a recently developed material, mineral trioxide aggregate. The treatment, clinical implications, and clinical guidelines for preventing root damage during miniscrew placement in orthodontic practice are discussed.
根损伤是正畸微螺钉种植体植入的一个重要并发症。尽管根损伤很少见，但医生应该清楚地了解其正确的处理方法。本文报告了一例因微螺钉植入而导致下颌侧切牙医源性根穿孔的病例。尽管由于慢性根尖周炎导致了一个大的透光区，但使用一种新开发的材料——三氧化矿物聚合体成功地修复了穿孔。讨论了在正畸实践中预防微螺钉植入过程中根损伤的治疗、临床意义和临床指导原则。
