脉冲电磁场作为一种辅助方法用以加快正畸牙移动速度的设想最近几年已经提出,为了使这一设想能切实可行地用于临床,已经有学者进行了一些实验研究。本实验采用光镜技术来观察脉冲电磁场对鼠牙移动的影响,为其在正畸临床上的应用提供实验依据。材料与方法1.实验设计:将34只体重为250±50g、月龄为2～3个月的健康雄性豚鼠随机分为实验组和对照组,各为17只,每组又分为不加力小组和加力小组,动物分组(见附表)。 The assumption that pulsed electromagnetic fields are used as ancillary methods to speed up orthodontic tooth movement has been proposed in recent years. In order to make this concept feasible for clinical use, some experiments have been carried out by scholars. In this experiment, light microscopy was used to observe the effect of pulse electromagnetic field on the movement of rat teeth, providing experimental evidence for its clinical application in orthodontics. MATERIALS AND METHODS 1. Experimental Design: 34 healthy male guinea pigs weighing 250 ± 50g and months old of 2 ~ 3 months were randomly divided into experimental group and control group, each with 17 rats each, Force groups and force groups, animal groups (see schedule).