| 摘要 |
The present invention provides designs for a self-ligating orthodontic bracket. According to one embodiment, the self-ligating orthodontic bracket includes a mounting base for attachment to a tooth surface, an archwire slot formed upon the base and sized for receiving an orthodontic archwire, a rotary ligating cover selectively rotatable between an open position permitting access to the archwire slot and a closed position covering the archwire slot, and one or more locking features for holding the rotary cover in a closed position. In one embodiment, the bracket includes one or more locking tabs on the rotary cover aligned in coplanar relation to the rotary cover and cooperatively mating with cutout portions in the base. The bracket may include cutouts on the sides of the rotary cover for easier manipulation of the cover. Lead in chamfers on the archwire slot may also be incorporated into the bracket base. Recessed channels and detents may be included for allowing the cover to be held in open or closed positions.
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