意外吞食正畸矫治器碎片：病例报告。
Accidental ingestion of a fractured piece of orthodontic aligner: a case report.
机构信息
Department of Orthodontics, Shanghai Stomatological Hospital and School of Stomatology, Fudan University, 166 Hechuan Road, Shanghai, 201102, China.
Division of Gastroenterology and Hepatology, Renji Hospital School of Medicine, Shanghai Jiao Tong University, 145 Middle Shandong Road, Shanghai, 200001, China.
出版信息
BMC Oral Health. 2024 Sep 17;24(1):1101. doi: 10.1186/s12903-024-04830-5.
BACKGROUND
Ingestion and aspiration of orthodontic devices are rare occurrences, typically associated with components such as expansion keys, archwire segments, dislodged fixed appliances (including brackets, buccal tubes, and bands), as well as fractured metal or plastic appliances. This article describes the clinical diagnosis and treatment process of a case of accidental ingestion of a fractured piece of orthodontic aligner.
CASE PRESENTATION
A 31-year-old female under orthodontic treatment by aligners accidentally ingested a fractured piece of the aligner. The special difficulty of this case is that the transparent orthodontic aligner has a low radiopacity. At the beginning, no foreign body was found in the commonly used soft tissue window, causing difficulty in its location until greyscale was adjusted to lung window. The 2-centimeter fractured piece was taken out under anesthesia and endoscopic surgery.
CONCLUSION
Materials with low radiopacity should be read with a lower grayscale range. Fractured orthodontic appliances with low retention force should not continue to be worn until consultation with attending doctor.
背景
正畸器械的摄入和吸入是罕见的情况，通常与扩张键、弓丝段、松动的固定矫治器（包括托槽、颊管和带环）以及断裂的金属或塑料矫治器等部件有关。本文描述了一例意外摄入正畸保持器断裂片的临床诊断和治疗过程。
病例介绍
一名 31 岁的女性正在接受正畸保持器治疗，她不小心吞下了一片保持器的碎片。这个病例的特殊之处在于透明的正畸保持器的放射不透明度较低。起初，在常用的软组织窗中未发现异物，导致其位置难以确定，直到调整灰度到肺窗。在全身麻醉和内镜手术下取出了 2 厘米长的碎片。
结论
对于放射不透明度较低的材料，应使用较低的灰度范围进行阅读。对于保留力较低的断裂正畸器械，在咨询主治医生之前，不应继续佩戴。
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