| abstract |
A self-ligating orthodontic bracket has an archwire slot, two outer tracks extending in an occlusal-gingival direction on the outer lateral surfaces of the bracket, and a vertical trough extending in an occlusal-gingival direction between the outer tracks. A clip has two parallel outer arms and a central tongue between the outer arms. The outer tracks of the bracket slidably engage the outer arms of the clip and the central tongue is slidably engaged by the vertical trough of the bracket, thereby allowing the clip to slidably move between an open position in which the outer arms of the clip are retracted from the archwire slot to allow an archwire to be placed into the archwire slot, and a closed position in which the outer arms of the clip extend across the archwire slot to retain the archwire in the archwire slot. |