Angle Orthod. 2023 Jul 1;93(4):482-492. doi: 10.2319/070122-472.1.
An 18.7-year-old female patient with an anterior open bite and an ankylosed left maxillary central incisor was referred from a private orthodontic clinic. Canine relationships were Class II and molar relationships were Class I. The open bite was closed with the multiloop edgewise archwire and up-and-down elastics. The maxillary left central incisor was extruded by dentoalveolar distraction assisted with mini-implants. Active treatment took 2 years and 1 month, and the treatment result remained stable 14 months after debonding.
一位 18.7 岁的女性患者,存在前牙开颌和左侧上颌中切牙骨性粘连,转诊自私人正畸诊所。安氏Ⅱ类 1 分类的磨牙关系和Ⅱ类 1 分类的尖牙关系。通过多曲方丝弓和上下橡皮圈关闭前牙开颌。利用微型种植体支抗的牙骨段牵张技术内收上颌左侧中切牙。2 年 1 个月的正畸治疗后,拆除矫治器 14 个月后,治疗效果稳定。