Brown M
Br J Orthod. 1984 Apr;11(2):92-9. doi: 10.1179/bjo.11.2.92.
This paper deals with the problem of the controlled closure of excess space in either one or both arches after labial segment alignment or overjet reduction has been achieved. The situations that give rise to the problem are listed. The importance of the need for controlled tooth movement, in order to maintain the antero-posterior labial segment position during space closure, is discussed. A detailed account, with illustrations, of the mechanics involved when using an edgewise system is presented.
本文探讨了在完成唇弓段排齐或覆盖减小后，控制一个或两个牙弓中多余间隙关闭的问题。文中列出了引发该问题的各种情况。讨论了在间隙关闭过程中，为保持唇弓段前后位置而进行控制牙齿移动的必要性。本文还详细介绍了使用方丝弓矫治系统时所涉及的力学原理，并配有插图。
