Method of preparing ceramic-coated dental prosthetic constructions
AssigneeHeraeus Edelmetalle GmbH
InventorsFranz Sperner, Heidi Brink, deceased
Life of this patent
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Abstract
An improved method for preparing a dental prosthetic construction such as a crown or bridge is described by applying a dental ceramic composition to a base of a precious metal silver-containing alloy, drying it and firing the same. In accordance with the improvement, the firing is conducted in a reducing atmosphere.
Claims1
In the method of preparing a dental prosthetic construction, including a crown or bridge, by applying a dental ceramic composition to a precious-metal alloy-containing silver, drying it, and firing the same, the improvement wherein the firing is carried out in a reducing atmosphere comprising carbon monoxide which is produced in the firing chamber of the furnace from atmospheric oxygen and placed in the firing chamber.
Dependencies are inferred from the claim text.