Patent ID: 8444914
Filing Date: 2013-05-21
Classification: A61K,B33Y

Abstract:
1. Process for the manufacture of a metallic dental prosthesis through the use of a cobalt-chromium alloy with a composition of: 43% to 68% by weight of cobalt, 12% to 30% by weight of chromium, 8% to 25% by weight of tungsten, 0% to 13% by weight of iron, 0% to 30% by weight of manganese, 0% to 10% by weight of molybdenum, 0% to 5% by weight of at least one of the elements aluminum, tantalum, rhenium, titanium, and less than 0.1% by weight of carbon, whereby the cobalt-chromium alloy is sprayed in powder form and the dental prosthesis is manufactured by means of a rapid prototyping process and subsequently polished by plasma polishing; and immersing the dental prosthesis in an electrolyte in the form of a mixture of water and at least one ammonium salt during the plasma polishing, wherein the electrolyte has a pH value of 1≦pH≦3.