Zhou Yang, Zhou Yanheng, Wang Xiaoxia, Li Zili
Resident, Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China.
Professor and chair, Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China.
Am J Orthod Dentofacial Orthop. 2016 Jan;149(1):99-113. doi: 10.1016/j.ajodo.2014.10.039.
A 19-year-old man with a skeletal Class III malocclusion was treated using minimal presurgical orthodontics. Orthodontic appliances and miniscrews were placed at the beginning of treatment, and the double-jaw-surgery was performed once the maxillary right and left first premolars were intruded, without worsening the concave profile and facial asymmetry presurgically. Different from the traditional combined orthodontic-orthognathic surgery, the jaw discrepancy was corrected first, followed by the orthodontic tooth movement. Miniscrews were used to intrude the premolars presurgically because of their interference and to provide the skeletal anchorage for intermaxillary elastics after the operation. The patient was pleased with the treatment results and satisfied with his facial and dental appearance, as well as his oral function. The 1-year follow-up photographs show a stable result both esthetically and functionally.
一名患有骨骼Ⅲ类错牙合畸形的19岁男性接受了最小化术前正畸治疗。在治疗开始时放置正畸矫治器和微螺钉，当上颌左右第一前磨牙压低后进行双颌手术，且术前未加重凹面型和面部不对称。与传统的正畸-正颌联合手术不同，先矫正颌骨差异，然后进行正畸牙齿移动。术前使用微螺钉压低前磨牙是因为它们的干扰，并在术后为颌间弹力牵引提供骨骼支抗。患者对治疗结果满意，对其面部、牙齿外观以及口腔功能都很满意。1年随访照片显示在美观和功能方面都有稳定的效果。
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