Orthodontic appliance for treating overjet

Details Orthodontic appliance for treating overjet Orthodontic appliance for treating overjet

A - Human Necessities

61

C

A61C 7/36 (2006.01)

Patent

CA 2608247

An orthodontic appliance has an upper attachment device secured to the upper teeth of the upper jaw. A lower attachment device having a pair of lower connectors is secured to the lower teeth of the lower jaw. A rigid, wire-like lingual bow extends between the lower connectors about the lingual sides of the lower teeth. A rigid, wire-like labial bow extends between the lower connectors about the labial sides of the lower teeth. The bows are connected to the lower connectors. A force-delivering module interconnects each side of the upper attachment device to a corresponding side of the lower attachment device. Each force--delivering module includes a compression spring and a tension spring operatively connected to the compression spring. The tension spring is positioned so as to actuate the compression spring to bias the lower attachment device forwardly with respect to the upper attachment device.

Un appareil orthodontique présente un dispositif de fixation supérieur rattaché aux dents de la mâchoire supérieure. Un dispositif de fixation inférieur muni d'une paire de connecteurs inférieurs est solidement fixé aux dents de la mâchoire inférieure. Un arc lingual rigide apparenté à un fil métallique se prolonge entre les connecteurs inférieurs le long des dents inférieures du côté de la langue. Un arc labial rigide apparenté à un fil métallique se prolonge entre les connecteurs inférieurs le long des dents inférieures du côté de la langue. Les arcs sont reliés aux connecteurs inférieurs. Un module délivrant une force lie chaque côté du dispositif de fixation supérieur au côté du dispositif de fixation inférieur qui lui correspond. Chaque module délivrant une force comprend un ressort de compression et un ressort de tension efficacement lié au ressort de compression. Le ressort de tension est placé de façon telle qu'il permet au ressort de compression de diriger le dispositif de fixation inférieur vers l'avant, par rapport au dispositif de fixation supérieur.

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