Rinchuse Daniel J, Rinchuse Donald J
Graduate Program in Orthodontics Seton Hill University, Greensburg, PA, USA.
Orthodontics (Chic.). 2011 Spring;12(1):10-21.
In the mid 1970s, Schudy and Schudy developed and described an edgewise bimetric system in which there were brackets with 0.016-inch slots on the incisors and canines and brackets with 0.022-inch slots on the premolars and molars. Modeling after Schudy and Schudy, Gianelly devised a similar, preadjusted system called the bidimensional system, in which the incisor brackets have 0.018-inch slots while the remaining teeth have brackets with 0.022-inch slots. We have further modified the bidimensional system and developed a dual-slot system. Hence, this article compares the bidimensional and dual-slot systems and provides justification for both. The main concerns regarding the bidimensional and dual-slot systems are posterior "play" and lack of three-dimensional control. We rationalize both as well as the self-ligating hybrid and dual-slot system.
20世纪70年代中期，舒迪和舒迪开发并描述了一种方丝弓双尺寸系统，其中，切牙和尖牙上的托槽槽沟为0.016英寸，前磨牙和磨牙上的托槽槽沟为0.022英寸。吉亚内利仿照舒迪和舒迪的做法，设计了一种类似的预成矫治系统，称为二维系统，其中切牙托槽的槽沟为0.018英寸，其余牙齿的托槽槽沟为0.022英寸。我们对方维系统进行了进一步改进，开发出了双槽沟系统。因此，本文对二维系统和双槽沟系统进行了比较，并阐述了二者的合理性。对二维系统和双槽沟系统的主要担忧在于磨牙后段的“间隙”以及缺乏三维控制。我们对二维系统、双槽沟系统以及自锁混合双槽沟系统都做出了合理的解释。
