Abstract: A structurally reliable bracket, comprising a base bracket provided with an arch wire slot, a net base fixed on one side of the base bracket, and a cover plate mounted on the other side of the base bracket; a bottom surface of the cover plate and a top surface of the base bracket abuts against each other and is in sliding fit; a strip-shaped elastic member is mounted on the top surface of the base bracket, two clamping slots are sequentially disposed on a bottom surface of the cover plate along a sliding direction of the cover plate, and a transition ridge protruding towards the direction of the base bracket is provided between the two clamping slots; and a part of the elastic member is a working section, and an avoiding slot is further provided on the top surface of the base bracket.

Abstract: A self-locking orthodontic bracket includes a bracket body having a first surface and an arch-wire slot disposed on the first surface, a sliding cover matched with the bracket body and comprising a second surface towards the first surface, and a deformable locking element configured for locking the sliding cover on the bracket body. A positioning groove is disposed on the second surface. The first surface includes a guiding surface, and the second surface is slidably engaged with the guiding surface. A sinking groove is disposed on the guiding surface, and a bottom surface of the sinking groove is further provided with a locking groove. A lower part of the locking element is fixed in the locking groove, and an upper part of the locking element extends into the positioning groove, such that the sliding cover is slidably locked on the bracket body.

Abstract: A self-locking orthodontic bracket includes a bracket body having a first surface and an arch-wire slot disposed on the first surface, a sliding cover matched with the bracket body and comprising a second surface towards the first surface, and a deformable locking element configured for locking the sliding cover on the bracket body. A positioning groove is disposed on the second surface. The first surface includes a guiding surface, and the second surface is slidably engaged with the guiding surface. A sinking groove is disposed on the guiding surface, and a bottom surface of the sinking groove is further provided with a locking groove. A lower part of the locking element is fixed in the locking groove, and an upper part of the locking element extends into the positioning groove, such that the sliding cover is slidably locked on the bracket body.