Ashikari Y
Aust Orthod J. 1992 Oct;12(3):153-65.
The author reports on the Separate Arch System (SAS) he has devised by adapting basic Begg Technique concepts in the light of his clinical experiences. SAS, a multi-bracket arrangement using reverse light wire brackets, is a method of initiating orthodontic movement in the anterior and posterior segments separately, but completing them at the same time. The method's features include: a) use of thinner wire in segments and in multiple strands, as needed, maximising benefits of light force and differential anchorage; b) one-point rigidity in the wire-bracket relation; c) the method can be applied in both extraction and non-extraction cases; d) the patient's home care is simplified; e) the method is quick, simple, and systematic (thus making estimation of a therapy goal possible).
作者报告了他根据临床经验对基本的Begg技术概念进行调整后设计的分牙弓系统（SAS）。SAS是一种使用反折光丝托槽的多托槽装置，是一种分别在前牙段和后牙段启动正畸移动，但同时完成移动的方法。该方法的特点包括：a）根据需要在各段使用更细的钢丝和多股钢丝，最大限度地发挥轻力和差动支抗的优势；b）钢丝与托槽关系中的单点刚性；c）该方法可应用于拔牙和非拔牙病例；d）简化了患者的家庭护理；e）该方法快速、简单且系统（因此使治疗目标的预估成为可能）。
