Liaw Johnny, Wang Shin-Huei, Chen Hou-Kun, Chen Yi-Jane
Angle Orthod. 2025 Mar 1;95(2):227-239. doi: 10.2319/041524-298.1.
This case report describes the nonsurgical management of a patient with a Class II skeletal pattern, retrognathic mandible, steep mandibular angle, maxillary vertical excess, and lip incompetence. The treatment approach involved orthodontic mechanics supported with skeletal anchorage to achieve maximal intrusion and retraction of the dentition. A novel elastic hanging rack appliance, supported by midpalatal miniscrews, was used. A maximal anchorage setup for active vertical control on both arches was illustrated. Significant improvement in the facial profile was achieved with optimal occlusion. Cephalometric analysis revealed successful incisor retraction and intrusion, as well as a forward rotation of the mandible. The treatment outcome illustrates the impact of active vertical control on orthodontic camouflage treatment for severe protrusion.
本病例报告描述了一名具有II类骨骼型、下颌后缩、下颌角陡峭、上颌垂直过度和唇部功能不全的患者的非手术治疗。治疗方法包括采用骨锚固支持的正畸力学手段，以实现牙列的最大程度内收和压低。使用了一种由腭中微螺钉支持的新型弹性悬挂架矫治器。展示了用于双牙弓主动垂直控制的最大支抗设置。通过优化咬合，面部轮廓得到了显著改善。头影测量分析显示切牙成功内收和压低，以及下颌向前旋转。治疗结果说明了主动垂直控制对严重前突正畸掩饰治疗的影响。
