直流电离子导入对兔牙移动的影响

The effect of iontophoresis on accelerating orthodontic tooth movement

作者采用直流电离子导入法,以0.9％NaCl为电解质液,对家兔进行以观察直流电离子导入对正畸牙移动的影响,结果显示直流电离子的导入能明显加速正畸牙的移动;组织学观察:实验组正畸牙压力侧的牙槽骨边缘吸收情况和牙周膜内血管反应与对照组比较有明显差异。文章讨论了直流电离子导入对牙周组织的作用机理,为一些能促进组织改建的药物以离子形式导入牙周组织而发挥功效建立了实验基础.

This paper reported that acceleration of tooth movement can be gaind by submucosal injection of some kind of medicine. To avoid the pain caused by the injection,conventional drug administration was ameliorated in this study by adopting the method of iontophoresis rabbits were divided into 2 groups and the standard orthodontic appliances were placed in the lower incisors of all animals. The 2 groups were separately recieved submucosal iontophoresis and injection of 0. 9% Nacl which served as control. The result showed that animals with iontophoresis,in whose pe-riodontal pression side more osteoclasts were observed histologically, had gained rapider tooth movement than those with injections.