Department of Orthodontic, Dental Research Institute and School of Dentistry, Seoul National University, Seoul, South Korea; Private practice, Seoul, Korea.
Am J Orthod Dentofacial Orthop. 2021 Aug;160(2):312-324. doi: 10.1016/j.ajodo.2020.05.019.
This case report describes the treatment of a 29-year-old woman with facial asymmetry and 2 hopeless teeth. Her lower dental midline was shifted to the left side, and the mandibular left second molar would need to be extracted because of severe caries. The maxillary right second premolar was root rest, and the upper dental midline was shifted to the right side. Because of the patient's asymmetry and Class III skeletal pattern, a severe Class III relationship in the right canine region and lingual crossbite in the left side was observed. She did not want jaw surgery. The mandibular right first premolar, 2 hopeless teeth, and maxillary left second premolar were extracted, and orthodontic mini-implants were used to correct the dental midline, crossbite, and crowding. The mandibular left third molar was moved to the second molar extraction space by using orthodontic mini-implant anchorage. Adequate functional and esthetic results were obtained. Correction of the crossbite on the left side could improve facial asymmetry by changing the drape of the overlying lips.
本病例报告描述了一位 29 岁女性的治疗过程，她存在面部不对称和 2 颗残根。其下牙中线偏左侧，且因严重龋坏需拔除下颌左侧第二磨牙。上颌右侧第二前磨牙为残根，上牙中线偏右侧。由于患者存在不对称和 III 类骨骼型，观察到右侧尖牙区域存在严重的 III 类错合关系和左侧舌侧反合。患者不想接受正颌手术。拔除下颌右侧第一前磨牙、2 颗残根和上颌左侧第二前磨牙，并用正畸微种植体纠正中线、反合和拥挤。用正畸微种植体支抗将下颌左侧第三磨牙移动至第二磨牙拔牙间隙。获得了满意的功能和美观效果。纠正左侧反合可以通过改变上唇的覆盖来改善面部不对称。
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