Department of Orthodontics, The University of Florence, Italy.
Prog Orthod. 2010;11(2):118-26. doi: 10.1016/j.pio.2010.09.002. Epub 2010 Oct 8.
To evaluate the outcomes of functional jaw orthopedics (FJO) followed by fixed appliances in Class II patients showing cephalometric signs predictive of unfavorable responsiveness to orthopedic treatment.
A total of 48 treated subjects (20 males, 28 females) with unfavorable Class II malocclusions were treated with FJO at the adolescent growth spurt, followed by fixed appliances. Treatment outcomes were compared with the growth changes in a matched control group of untreated subjects with "unfavorable" Class II malocclusions.
A significant prevalence rate of successful outcome was recorded within the treated group (64.5%). When compared with the untreated controls, both the overall treated group and the successful treated subgroup revealed a significant reduction in maxillary growth and sagittal position, along with a significant enhancement in mandibular length, sagittal advancement of the mandible, and significant improvements in the maxillo-mandibular relationships. Both overjet and molar relation showed significant favorable changes in the treated group.
FJO at the pubertal spurt followed by fixed appliances is a viable therapeutical option in patients with "unfavorable" Class II malocclusions, although skeletal changes are of minor entity.
评估功能性颌骨矫形（FJO）联合固定矫治器治疗表现出对矫形治疗反应不佳的头影测量特征的 II 类错颌患者的治疗效果。
共 48 名治疗组（20 名男性，28 名女性）接受了青少年生长突增期的 FJO 治疗，随后进行了固定矫治。将治疗结果与未经治疗的“不适应证 II 类错颌”对照组的生长变化进行比较。
治疗组中记录到了一个显著的成功治疗结果发生率（64.5%）。与未经治疗的对照组相比，整个治疗组和成功治疗亚组都显示出上颌生长和矢状位置的显著减少，下颌长度、下颌矢状向前移动以及上下颌骨关系的显著改善。治疗组的覆盖和磨牙关系都有显著的有利变化。
在青春期突增期进行 FJO 联合固定矫治器治疗是治疗“不适应证 II 类错颌”患者的可行治疗选择，尽管骨骼变化的程度较小。
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