Orthodontics Teaching Unit, Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain.
Orthodontics Teaching Unit, Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain.
Am J Orthod Dentofacial Orthop. 2021 Apr;159(4):522-535. doi: 10.1016/j.ajodo.2020.01.023. Epub 2021 Jan 21.
Class III malocclusion presents some complexity in terms of diagnosis and treatment and affects not only the jaws but the whole craniofacial complex. Besides, functional forward displacement of the mandible may be diagnosed in a patient presenting Class III malocclusion, as the 2 entities are not incompatible or mutually exclusive. This case report describes the multidisciplinary, nonsurgical, orthodontic treatment of an adult patient with a skeletal Class III malocclusion, anterior crossbite, and a palatally impacted canine, treated with fixed appliances and skeletal anchorage. To upright the mandibular molars, distalize the whole mandibular arch, and avoid excessive inclination of maxillary incisors to improve dentofacial esthetics, miniscrews were placed in the retromolar area. The treatment results were very satisfactory and remained stable after a reasonable retention period.
III 类错颌在诊断和治疗方面存在一定复杂性，不仅影响颌骨，还影响整个颅面复合体。此外，III 类错颌患者可能存在功能性下颌前伸，这两种情况并不相互排斥。本病例报告描述了一位成年患者的多学科、非手术、正畸治疗，该患者存在骨性 III 类错颌、前牙反颌和腭侧埋伏尖牙，采用固定矫治器和骨支抗进行治疗。为了直立下颌磨牙、远移整个下颌弓、避免上颌切牙过度倾斜以改善牙颌面美观，在磨牙后区植入微型种植体。经过合理的保持期后，治疗效果非常满意且稳定。
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