Orthodontic bracket

Details Orthodontic bracket Orthodontic bracket

A - Human Necessities

61

C

A61C 7/28 (2006.01) A61C 7/02 (2006.01) A61C 7/00 (2006.01)

Patent

CA 2304243

In one embodiment, a pre-engaging orthodontic bracket includes a body having a lingual surface for attachment to a tooth, a pair of laterally spaced gingival tie wings and a pair of laterally spaced occlusal tie wings. The gingival and occlusal tie wings project from a labial surface of the body. An archwire slot extends mesiodistally across the body and between the gingival and occlusal tie wings at opposed mesial and distal sides of the body to accommodate an archwire. A pivot pin extends between a pair of the tie wings at opposed mesial and distal sides of the body. A shutter is moveable relative to the body between an open position in which placement and removal of an archwire into the archwire slot is facilitated and a closed position in which placement and removal of an archwire into the archwire slot is inhibited.

Dans un mode de réalisation, un verrou orthodontique de pré-engagement comporte un corps ayant une surface linguale permettant un rattachement à une dent, deux ailes d'attache gingivale séparées et deux ailes d'attache occlusale séparées. Les ailes d'attache gingivale et occlusale font saillie de la surface labiale du corps. Une rainure d'arc dentaire s'étend médio-distalement sur le corps et entre les ailes d'attache gingivale et occlusale sur les cotés, mésial et distal, du corps afin de recevoir un arc dentaire. Un axe de pivotement s'étend entre deux ailes d'attache sur les cotés opposés, mésial et distal, du corps. Un obturateur peut se déplacer, relativement au corps, pour passer d'une position ouverte dans laquelle la mise en place et le retrait d'un arc dentaire dans la rainure prévue à cet effet sont facilités à une position fermée dans laquelle la mise en place et le retrait d'un arc dentaire dans la rainure prévue à cet effet sont impossibles.

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