Self opening orthodontic appliance with opening assistance

A - Human Necessities – 61 – C

Patent

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Details

A61C 7/00 (2006.01) A61C 7/08 (2006.01)

Patent

CA 2343854

An orthodontic appliance is provided which includes an upper tooth receiving trough and a lower tooth receiving trough which are hinged together at a posterior portion of the appliance. The hinge is constructed so that the appliance is self opening to cause the troughs to maintain contact with the teeth when the patient's mouth is open. The appliance is formed of a soft and sticky plastic material so that it will adhere closely to the patient's teeth. Surface features are provided on opposing surfaces of the troughs to prevent the troughs from sticking to one another when the appliance is closed. An interference area is provided at the hinges to prevent the hinges from completely closing to assist in self opening of the appliance.

Un appareil orthodontique comprend une cavité de réception de dent supérieure et une cavité de réception de dent inférieure qui sont articulées l'une à l'autre au niveau d'une partie postérieure de l'appareil. La charnière est construite de telle sorte que l'appareil soit à ouverture automatique pour amener les cavités à maintenir le contact avec les dents lorsque la bouche du patient est ouverte. L'appareil est constitué d'un matériau plastique mou et collant de sorte que ce dernier s'adhère étroitement aux dents du patient. Des caractéristiques de surface sont prévues sur les surfaces opposées des cavités pour empêcher les cavités de coller l'une à l'autre lorsque l'appareil est fermé. Une zone d'interférence est prévue au niveau des charnières pour empêcher ces dernières de fermer complètement afin de contribuer à l'ouverture automatique de l'appareil.

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