Department of Orthodontics, Shanghai Stomatological Hospital & School of Stomatology, Fudan University, Shanghai 200001, China.
Medicina (Kaunas). 2022 Sep 4;58(9):1217. doi: 10.3390/medicina58091217.
Severe hyperdivergent skeletal Class II malocclusion may be ideally treated with orthognathic surgery in adult patients. Here, we report a camouflage treatment of a 23-year-old female patient. She was diagnosed with a skeletal Class II malocclusion with extreme high mandibular plane angle, retrusive mandible, steep posterior occlusal plane, anterior open bite, and severe overjet. The treatment plan included extraction of all second premolars and intrusion of the maxillary anterior teeth and mandibular posterior teeth using miniscrews. These contributed to an effective counterclockwise rotation of the mandible, decreased lower face height, and improvement in anterior overbite. This case report shows a vertical control strategy on severe hyperdivergent skeletal Class II malocclusions, which achieves well-controlled sagittal and vertical dimensions and a favorable facial appearance. The treatment and retention results were well balanced and aesthetically pleasing.
严重高角骨性Ⅱ类错颌畸形患者在成年后可能更适合接受正颌手术治疗。本文报告了一例 23 岁女性患者的掩饰性治疗。该患者诊断为骨性Ⅱ类错颌畸形,表现为下颌平面角极度高角、下颌后缩、后牙牙合平面陡、前牙开颌和上前牙重度深覆颌。治疗方案包括拔除所有第二前磨牙,使用微型种植体支抗内收上颌前牙和下颌后牙。这有助于下颌的有效逆时针旋转,降低下面高,改善前牙深覆颌。本病例报告展示了对严重高角骨性Ⅱ类错颌畸形的垂直控制策略,实现了良好的矢状向和垂直向控制以及满意的面型。治疗和保持效果平衡且美观。