Rapaport M
Aust Orthod J. 1998 Mar;15(2):113-25.
This case report describes a two-phase approach to the treatment of an Angle Class II division 2 malocclusion in a growing boy. The first phase utilised a functional appliance (Clark Twin Blocks) during puberty and achieved a pleasing improvement in the facial profile. The second phase involved a fixed upper and lower Begg appliance without extractions, followed by retention. An unexpected complication was the failure of the lower left second molar to erupt; surgical removal of cystic elements surrounding this tooth, followed by traction and, later, mechanics to correct the buccal cross-bite, eventually corrected its position.
本病例报告描述了一名处于生长发育期男孩的安氏II类2分类错牙合畸形的两阶段治疗方法。第一阶段在青春期使用功能性矫治器（克拉克双阻板矫治器），面部轮廓得到了令人满意的改善。第二阶段采用上下固定的Begg矫治器且不拔牙，之后进行保持。一个意外的并发症是左下第二磨牙未萌出；手术切除围绕该牙的囊性组织，随后进行牵引，之后采用矫治技术纠正颊侧反牙合，最终矫正了其位置。
