Department of Orthodontics, Dental Research Institute and School of Dentistry, Seoul National University, Seoul, Korea.
Am J Orthod Dentofacial Orthop. 2019 Feb;155(2):264-275. doi: 10.1016/j.ajodo.2018.08.016.
To improve the facial profile of a Class II patient with chin deficiency, orthodontists have traditionally used incisor retraction or jaw surgery. Recently, a new technique was introduced that uses orthodontic mini-implants to intrude the incisors and rotate the mandibular plane counterclockwise. In patients with deep bite, heavy anterior occlusal contact can make it difficult to use intrusion for profile improvement. This case report shows the successful treatment of a patient with Class II deep bite and chin deficiency by means of intrusion of the maxillary and mandibular dentition with multiple orthodontic mini-implants.
为了改善 II 类伴有下颌后缩的患者的面型,正畸医生传统上使用内收切牙或正颌手术。最近,引入了一种新技术,即使用正畸微种植体来内收切牙并逆时针旋转下颌平面。在深覆合患者中,前牙的重度接触可能会使通过内收来改善面型变得困难。本病例报告展示了使用多个正畸微种植体来内收上颌和下颌牙列从而成功治疗 II 类深覆合伴有下颌后缩的患者。