Angle Orthod. 2023 Nov 1;93(6):736-746. doi: 10.2319/011823-40.1.
This case report describes the successful treatment of a patient with Crouzon syndrome with severe midfacial deficiency and malocclusion, including reverse overjet.
In Phase I treatment, maxillary lateral expansion and protraction were performed. In Phase II treatment, after lateral expansion of the maxilla and leveling of the maxillary and mandibular dentition, an orthognathic approach including simultaneous Le Fort I and III osteotomies with distraction osteogenesis (DO) was used to improve the midfacial deficiency.
After DO, 12.0 mm of the medial maxillary buttress and 9.0 mm of maxillary (point A) advancement were achieved, which resulted in a favorable facial profile and stable occlusion.
Even after 8 years of retention, the patient's profile and occlusion were preserved without any significant relapse.
本病例报告描述了一例 Crouzon 综合征伴严重面中部发育不全和错颌畸形（包括反覆颌）患者的成功治疗。
在第一阶段治疗中，行上颌横向扩张和牵引。在第二阶段治疗中，上颌横向扩弓和上下颌牙列排齐整平后，采用正颌手术方法，包括同期 Le Fort I 型和 III 型截骨术及牵引成骨术（DO），以改善面中部发育不全。
DO 后，获得了内侧上颌支柱 12.0mm 和上颌（A 点）前徙 9.0mm，从而获得了良好的面型和稳定的咬合。
即使在 8 年的保持期后，患者的面型和咬合仍得以维持，无明显复发。
