Xu Tianmin
Dept. of Orthodontics, Peking University School of Stomatology, Beijing 100081, China.
Hua Xi Kou Qiang Yi Xue Za Zhi. 2012 Jun;30(3):225-8.
Just like other subjects in medicine, orthodontics also uses some vague concepts to describe what are difficult to measure quantitatively. Anchorage control is one of them. With the development of evidence-based medicine, orthodontists pay more and more attention to the accuracy of the clinical evidence. The empirical description of anchorage control is showing inadequacy in modern orthodontics. This essay, based on author's recent series of studies on anchorage control, points out the inaccuracy of maximum anchorage concept, commonly neglected points in quantitative measurement of anchorage loss and the solutions. It also discusses the limitation of maximum anchorage control.
与医学中的其他学科一样，正畸学也使用一些模糊的概念来描述难以进行定量测量的内容。支抗控制就是其中之一。随着循证医学的发展，正畸医生越来越关注临床证据的准确性。在现代正畸学中，支抗控制的经验性描述正显示出不足。本文基于作者近期关于支抗控制的一系列研究，指出了最大支抗概念的不准确之处、支抗丧失定量测量中常被忽视的要点及解决方法。同时也讨论了最大支抗控制的局限性。
