Staderini Edoardo, Patini Romeo, Meuli Simonetta, Camodeca Andrea, Guglielmi Federica, Gallenzi Patrizia
Università Cattolica del Sacro Cuore, Facoltà di Medicina e Chirurgia, Istituto di Odontoiatria e Chirurgia Maxillo-Facciale (Roma, Italy).
Dental Press J Orthod. 2020 Jul-Aug;25(4):33-43. doi: 10.1590/2177-6709.25.4.033-043.oar.
Anterior crossbite (AC) is defined as a reverse sagittal relationship between maxillary and mandibular incisors. According to an evidence-based orthodontic triage, the treatment need of AC is indicated if any occlusal interference is forcing the mandible towards a Class III growth pattern. Removable and fixed appliances have been suggested to correct AC.
The present report aims at presenting the benefits of an alternative therapy for the early treatment of anterior crossbite using clear aligners.
Two cases of anterior crossbite corrected using clear aligners in 8-years-old children are presented.
In both cases, AC was successfully corrected within 5 months. At the end of the treatment, overjet and overbite were corrected. No major discomfort or speech impairment was noticed by the parents.
Due to the perceived shortcomings of alternative approaches, the use of clear aligners for correcting AC in mixed dentition should be considered as a comfortable and well tolerated appliance for young patients.
前牙反颌（AC）被定义为上颌和下颌切牙之间的矢状关系反向。根据循证正畸分诊，如果任何咬合干扰迫使下颌朝着Ⅲ类生长模式发展，则表明需要治疗AC。有人建议使用可摘矫治器和固定矫治器来纠正AC。
本报告旨在介绍使用透明矫治器早期治疗前牙反颌的替代疗法的益处。
介绍了两例8岁儿童使用透明矫治器纠正前牙反颌的病例。
在这两个病例中，AC均在5个月内成功纠正。治疗结束时，覆盖和覆合得到纠正。家长未注意到有重大不适或言语障碍。
由于其他方法存在明显缺点，对于混合牙列期的患者，使用透明矫治器纠正前牙反颌应被视为一种舒适且耐受性良好的矫治器。
