Objective To investigate the effects of time varied stress on the shape-alteration of myoblast in rats and to provide a theoretic base to determine the mechanics of myoblast in orthodontic therapy.

• 目的探讨不同交变应力作用下,大鼠翼外肌成肌细胞增殖活性的变化,为交变应力下翼外肌组织的改建提供必要的基础实验数据。