Küçükkeleş Nazan, Ilhan Işil, Orgun I Ata
Department of Orthodontics, Marmara University, Güzelbahce sokak no:6, stanbul, 34365, Turkey.
Angle Orthod. 2007 May;77(3):449-56. doi: 10.2319/0003-3219(2007)077[0449:TEISCI]2.0.CO;2.
To analyze the effects of the Jasper Jumper appliance during the treatment of skeletal Class II malocclusion.
Lateral cephalograms and hand-wrist radiographs were collected from 45 Class II growing patients (22 boys, 23 girls). Three sets of records (initial, before Jasper Jumper, after Jasper Jumper) from 25 patients were compared with 20 control subjects of similar skeletal developmental stage. Mean age of the treatment and control groups were 11.83 years and 11.3 years, respectively. The data were analyzed by using paired t-tests.
The results demonstrated that the Jasper Jumper effectively corrected Class II malocclusion, but the changes were 80% dentoalveolar. The Jasper Jumper induced a clockwise rotation of the occlusal plane without much alteration in vertical dimension. Skeletally, the maxillary growth was restricted and pogonion moved forward, improving the profile.
The Jasper Jumper appliance may be an effective method to improve both the skeletal imbalance and the profile in growing patients.
分析雅斯佩尔跳跃矫治器在治疗骨性安氏II类错牙合中的作用。
收集45例生长发育期安氏II类患者（22例男性，23例女性）的头颅侧位片和手腕部X线片。将25例患者的三组记录（初始、佩戴雅斯佩尔跳跃矫治器前、佩戴雅斯佩尔跳跃矫治器后）与20例骨骼发育阶段相似的对照受试者进行比较。治疗组和对照组的平均年龄分别为11.83岁和11.3岁。采用配对t检验对数据进行分析。
结果表明，雅斯佩尔跳跃矫治器能有效矫正安氏II类错牙合，但变化80%为牙牙槽骨变化。雅斯佩尔跳跃矫治器导致牙合平面顺时针旋转，垂直方向变化不大。骨骼方面，上颌生长受限，颏点前移，改善了面部侧貌。
雅斯佩尔跳跃矫治器可能是改善生长发育期患者骨骼不调及面部侧貌的有效方法。
