Scribante Andrea, Beccari Sergio, Beccari Giovanna, Pascadopoli Maurizio, Gandini Paola, Sfondrini Maria Francesca
Unit of Orthodontics and Pediatric Dentistry, Section of Dentistry, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.
Unit of Orthodontics and Pediatric Dentistry, Section of Dentistry, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.
Am J Orthod Dentofacial Orthop. 2023 Feb;163(2):272-284. doi: 10.1016/j.ajodo.2021.09.022. Epub 2022 Nov 18.
This case report presents the successful orthodontic repositioning of a transmigrated and lingually positioned mandibular canine with conventional mechanics. Treatment began with the aim of creating space for the four permanent canines that had not yet erupted. Cervical headgear, mesial slice, and extraction of the deciduous teeth were executed, but only the right canines erupted; moreover, the mandibular left canine had become lingually transmigrated. Multibracket therapy was performed with the orthodontic repositioning of both left canines in 2 steps. They were repositioned, and good alignment was obtained. To our knowledge, this is the first case report describing the orthodontic repositioning of a lingually transmigrated canine with conventional double-arch mechanics. This treatment was successful and without significant complications, even though this approach can be challenging and time-consuming.
本病例报告展示了采用传统力学方法成功对一颗移位至舌侧的下颌尖牙进行正畸复位。治疗开始时旨在为四颗尚未萌出的恒牙尖牙创造间隙。采用了颈带、近中片切以及乳牙拔除等方法,但只有右侧尖牙萌出;此外,下颌左侧尖牙已移位至舌侧。通过多托槽矫治分两步对两颗左侧尖牙进行正畸复位。它们被成功复位并获得了良好的排齐效果。据我们所知,这是首例描述采用传统双弓力学方法对舌侧移位尖牙进行正畸复位的病例报告。尽管这种方法具有挑战性且耗时,但该治疗取得了成功且无明显并发症。