Methods for making provisional and long-term dental crowns...

A - Human Necessities – 61 – C

Patent

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A61C 13/00 (2006.01)

Patent

CA 2664786

The invention provides methods of making provisional and long-term dental restorations, particularly dental veneers, crowns and bridges. In one embodiment, the restoration can be fabricated indirectly by a dental laboratory. In another version, a dental practitioner can make the restoration chairside for a patient in a dental office. A polymerizable dental composite material, which is dimensionally shape-stable in its uncured state, is used to make the restoration. A substructure such as a metal coping can be used to support the polymerizable material. The material includes a polymerizable acrylic compound, polymerization initiator system capable of being activated by light or heat, and preferably a filler material. The resulting dental restoration has good aesthetics, mechanical strength, and margins and contacts.

La présente invention concerne un procédé de fabrication de restaurations dentaires provisoires et à long terme, en particulier des facettes, des couronnes et des bridges. Dans un mode de réalisation, la restauration peut être fabriquée indirectement par un laboratoire dentaire. Dans une autre version, un dentiste peut effectuer cette restauration près du patient dans son cabinet. On utilise un matériau composite polymérisable qui possède une stabilité de forme dimensionnelle à l'état non durci pour effectuer cette restauration dentaire. Une sous structure telle qu'une coiffe métallique peut être utilisée pour supporter le matériau polymérisable. Ce matériau comprend un composé acrylique, un système initiateur de polymérisation qui peut être activé par la lumière ou la chaleur, et de préférence un matériau liant. Cette restauration présente de bonnes caractéristiques esthétiques, une bonne résistance mécanique, de bonnes marges et de bons contacts.

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