To evaluate the soft and hard tissue changes in curing Angle`s class II division 1 mandibular retrusion cases with Dynamax or Twin block.
目的 评价Dynamax和 Twin block 两种功能矫治器治疗安氏Ⅱ类 1 分类下颌后缩患者前后软硬组织的改变。
It was almost the same effect For Class II Division 1 mandibular retrusion patients using Twin block or Dynamax in the early treatment.
Dynamax或Twin block功能矫治器早期治疗安氏II类 1 分类下颌后缩患者，其软硬组织疗效基本一致。
According to the heat balance principle, the stem flow of Yali pear were studied by Dynamax sap flow measuring system in Taigu country of Shanxi Province.
基于热平衡原理，利用热平衡包裹式茎流仪Flow-32对山西太谷地区的鸭梨树干液流变化进行测定。
For Class II Division 1 patients using Twin block or Dynamax in the early treatment could effectively improve facial appearance, and make the soft and hard tissue side face become normal.
结论：1.对于安氏II类1分类患者，采用Dynamax或twinblock早期治疗，能有效的改善面部美观，使软硬组织侧貌面型趋于正常。