Sfondrini Maria Francesca, Pascadopoli Maurizio, Beccari Sergio, Beccari Giovanna, Rizzi Cinzia, Gandini Paola, Scribante Andrea
Unit of Orthodontics and Pediatric Dentistry, Section of Dentistry, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia 27100, Italy.
Case Rep Dent. 2022 Sep 2;2022:3100360. doi: 10.1155/2022/3100360. eCollection 2022.
The use of fixed retainers at the end of an orthodontic treatment has become a standard practice. Nonetheless, orthodontic relapse can still occur, requiring retreatment in the most severe cases. This case report describes a patient with a mandibular canine to canine fixed retainer presenting uncontrolled torque on all lower anterior teeth, probably due to tongue thrust and/or activation of the wire. Multibracket orthodontic treatment was performed, and an orthodontic lingual sectional was used to control (reposition) the root movement of the lower right cuspid. This case highlights the need for clinicians and patients to be aware of the potential problems associated with bonded retainers. In addition, patients with an orthodontic fixed retainer need regular short-term observation by an orthodontist in order to detect any adverse movements and long-term control by a general dentist.
在正畸治疗结束时使用固定保持器已成为一种标准做法。尽管如此，正畸复发仍可能发生，在最严重的情况下需要再次治疗。本病例报告描述了一名患者，其下颌尖牙间固定保持器导致所有下前牙出现不受控制的转矩，这可能是由于舌推和/或弓丝激活所致。进行了多托槽正畸治疗，并使用正畸舌侧分段弓来控制（重新定位）右下尖牙的牙根移动。本病例强调临床医生和患者需要意识到与粘结保持器相关的潜在问题。此外，佩戴正畸固定保持器的患者需要正畸医生定期进行短期观察，以便发现任何不良移动，并由普通牙医进行长期管控。
