自锁托槽的临床应用及研究进展

自锁托槽是一种新的托槽类型,可以通过托槽槽沟唇侧的滑盖或弹簧夹固定弓丝,简便了结扎过程,节省了椅旁操作时间,还有助于减小滑动阻力,减少关闭间隙的阻力,使矫治效力增加。自锁托槽与传统托槽一样,能三维方向控制牙的移动。大部分学者认为,使用自锁托槽矫治可以减少总治疗时间,延长复诊间隔时间,减少复诊次数,并且自锁托槽的脱落率和意外打开率和传统托槽无显著差异。

The clinical implication of self-ligating brackets

The self-ligating bracket is a new kind of bracket. The cardinal feature of a self-ligating bracket is an inbuilt metal labial face to the bracket slot, which is referred to as a clip or slide. It reduces the chairside time and makes the ligating easier. The lower sliding resistance offered by self-ligating bracket reduces the resistance to close the space and makes the treatment more efficient.Low friction and low force are good for the alveolar bone rebuilding physiologically. The spring clip of self-ligating bracket can control the tooth in three dimentional directions as the conventional fixed appliances. Most orthodontists think that self-ligating bracket allows shorter treatment time and longer intervals and less visits. There is no significance difference between the debonding and ligating loss rate of self-ligating bracket and conventional bracket.