Cassetta Michele, Guarnieri Rosanna, Altieri Federica
Int J Comput Dent. 2020;23(1):57-71.
An orthodontic treatment is described that combines the use of clear aligners and computer-guided piezocision to overcome the drawbacks of traditional corticotomy in accelerating orthodontic tooth movement. The relapse at the 2-year follow-up was also evaluated.
A 13-year-old male patient was selected and treated due to a molar Class II malocclusion with moderate dental crowding. Treatment time, oral health-related quality of life (OHRQoL), and periodontal indexes were assessed. To reduce the treatment time, computer-guided piezocision was utilized to perform flapless interproximal corticotomy cuts through the depth of the cortical bone. The orthodontic therapy using clear aligners began on the same day as the surgery.
The overall duration of the therapy was 6 months. There was an improvement in the periodontal indexes at the end of the therapy. An aggravation of OHRQoL only occurred for 3 days after surgery. The 2-year follow-up evaluation showed a relapse of 0.2 mm on the maxillary left lateral incisor and 0.25 mm on the mandibular right lateral incisor.
The present case report describes the advantages of a combination of computer-guided piezocision and clear aligners to treat a Class II malocclusion with moderate crowding.
描述一种正畸治疗方法，该方法结合使用透明矫治器和计算机引导下的压电切开术，以克服传统皮质切开术在加速正畸牙齿移动方面的缺点。还评估了2年随访时的复发情况。
选择一名13岁男性患者，因磨牙II类错颌伴中度牙列拥挤接受治疗。评估治疗时间、口腔健康相关生活质量（OHRQoL）和牙周指数。为缩短治疗时间，采用计算机引导下的压电切开术，在不翻瓣的情况下，通过皮质骨深度进行邻间皮质切开。使用透明矫治器的正畸治疗在手术当天开始。
治疗总时长为6个月。治疗结束时牙周指数有所改善。术后仅3天OHRQoL出现恶化。2年随访评估显示，上颌左侧侧切牙复发0.2毫米，下颌右侧侧切牙复发0.25毫米。
本病例报告描述了计算机引导下的压电切开术与透明矫治器联合治疗中度拥挤II类错颌的优势。
