Choi Nak-Chun, Park Young-Chel, Jo Yong-Min, Lee Kee-Joon
Department of Orthodontics, Oral Science Research Center, Institute of Craniofacial Deformity, Yonsei University, Seoul, Korea.
Am J Orthod Dentofacial Orthop. 2009 May;135(5):671-81. doi: 10.1016/j.ajodo.2006.12.025.
The increasing demand for esthetic orthodontic treatment has led to the development of tooth-colored and even "invisible" appliances. Although sequential removable clear aligners have several advantages over conventional bracket systems, they have some limitations in extraction treatment. This case report presents the esthetic extraction treatment of a patient with bialveolar protrusion; conventional brackets were not used. The treatment was completed in 2 steps. The first step involved segmental retraction of the anterior teeth by using miniscrews and an anterior lingual splint with a clear lever arm. The second step involved alignment and finishing by using sequential removable clear aligners. The patient's esthetic demands were fulfilled successfully during treatment, and satisfactory facial profile and occlusion were achieved after treatment.
对美观正畸治疗的需求不断增加,导致了牙齿颜色的甚至“隐形”矫治器的发展。尽管序贯式可摘透明矫治器比传统托槽系统有几个优点,但在拔牙治疗中仍有一些局限性。本病例报告展示了一位双牙弓前突患者的美观拔牙治疗;未使用传统托槽。治疗分两步完成。第一步是使用微型螺钉和带有透明杠杆臂的前舌侧夹板对前牙进行节段性后缩。第二步是使用序贯式可摘透明矫治器进行排齐和精细调整。治疗期间成功满足了患者的美观需求,治疗后获得了满意的面部轮廓和咬合关系。