Oka K, Endo T, Wada H, Minegishi T, Akashiba T, Amano N, Kosuge N, Kameda A
Shigaku. 1989 Dec;77(4):1458-69.
KB horizontal brackets were designed to tip no more than 6 degrees at the maximum. This tipping amount is based on the idea of reducing friction between a wire and brackets to allow the effective tooth movement of the Begg technique even with horizontally long brackets, and does not originate in the concept of carrying out tipping movement. Thereon, experimental measurements by use of Rheometer were conducted to review for comparison of the kinetic frictional forces caused between various wires and the following four types of brackets; KB horizontal brackets, Tip edge brackets, Straight edge brackets and Begg brackets. 1. In case of utilizing ribbon arch wires and rectangular wires, no significant difference was acknowledged among Tip edge, KB horizontal and Straight edge brackets. 2. There proved to be a reduction in the kinetic frictional forces by incorporating tip into the edgewise slots, when using smaller dimensions of the wires which call for the effective tooth movement, however, Begg brackets (in conjunction with Ordinary T-pins and/or Safety T-pins) showed the small value which is far less than that of the three kinds of brackets.
KB 水平托槽设计为最大倾斜不超过6度。这个倾斜量基于减少钢丝与托槽之间摩擦力的理念，以便即使使用水平较长的托槽也能实现Begg技术有效的牙齿移动，而并非源于进行倾斜移动的概念。因此，使用流变仪进行了实验测量，以比较各种钢丝与以下四种托槽之间产生的动摩擦力；KB水平托槽、Tip edge托槽、直边托槽和Begg托槽。1. 在使用带状弓丝和矩形丝的情况下，Tip edge托槽、KB水平托槽和直边托槽之间未发现显著差异。2. 当使用需要有效牙齿移动的较小尺寸钢丝时，通过在方丝槽中加入倾斜设计，动摩擦力有所降低，然而，Begg托槽（与普通T形钉和/或安全T形钉配合使用）显示出的值远小于其他三种托槽。
