Comparsion of the space changes in tyohodont molar with magnetic appliance and without magnetic appliance

Dental typodonts mimicking primary mandibular first molar and permanent mandibular first molar was used in this study. The dental typodont was stabilized using wax in the right quadrant of the typodont model.本研究采用了模拟下颌第一乳磨牙与下颌第一恒磨牙的牙科仿真牙模型（Dental typodont）。该牙科仿真牙模型的右侧牙区通过蜡进行固定。