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本临床研究应用了直的双根钛镍丝扩弓法,主弓配合辅弓扩弓法,多loop弓丝牙弓前部扩弓法,改良多用弓技术,四眼簧扩弓器,快速扩弓螺旋器,用预成的略大于牙弓的弓丝扩弓和上下颌后牙交互牵引扩大牙弓,共8种方法.作者结合临床经验及体会,分析了各种扩弓方法的原理,提出了每种扩弓方法的适应症以及加力时应注意的事项.这些常用的扩弓方法,在临床上是行之有效的.既满足了临床扩弓的要求,也促进了方丝弓矫治技术的普及和开展.
The clinical study of the use of a straight double root titanium nickel wire expansion method, the main bow with auxiliary arch expansion method, multi-loop arch wire bow arch anterior approach, modified multi-purpose arch technology, four extender bow spring, fast Expansion of the spiral device, with preformed slightly larger than the arch of the arch wire and the maxillary and mandibular teeth after the interactive traction to expand the dental arch, a total of eight methods. The author combined clinical experience and experience, analysis of various expansion principle , Put forward the indications for each method of expansion and should pay attention to the matters needing attention during augmentation.These commonly used methods of expansion are clinically effective.It not only meets the requirements of clinical expansion but also promotes the square wire Bow correction technology and the popularity.