方丝弓矫治技术中，前牙深覆的矫治是一大难题。
In Edgewise technique, one of the difficult problems is the correction of overbite.
目的通过多曲方丝弓矫治技术的临床运用，分析其矫治特点，探讨其作用机理。
Objective To approach the mechanism of MEAW application, analyze and summarize its effects.
目的评价尖牙向后结扎应用于方丝弓矫治技术的临床疗效，并探讨其机制和使用方法。
Objective To evaluate the effect of canine laceback applied in edgewise appliance and to discuss the mechanism and application.
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