Dental alloy for machining by cad/cam system

Abstract

The present invention relates to a dental alloy for machining by a CAD/CAM system. In particular, the dental alloy for machining by a CAD/CAM system features a minimum usage of expensive gold and platinum by comprising gold (Au) in an amount of between 0.1% and 5.0% by weight and platinum (Pt) in an amount of between 0% and 5.0% by weight, in addition to palladium (Pd) in an amount of between 30% and 50% by weight, indium (In) in an amount of between 25% and 50% by weight, silver (Ag) in an amount of between 10% and 40% by weight and iridium (Ir) in an amount of between 0.1% and 0.3% by weight. Accordingly, compared with a conventional dental casting alloy composed of gold in an amount of between 40% and 99% the dental alloy for machining by a CAD/CAM system of the invention can be provided at a lower manufacturing cost, while offering processability equivalent to that of zirconia that can be machined by a conventional CAD/CAM system.

1 . A dental alloy for machining by a CAD/CAM system, comprising 0.1-5.0 wt % of gold (Au), 30-50 wt % of palladium (Pd), 25-50 wt % of indium (In), 10-40 wt % of silver (Ag), and 0.1-0.3 wt % of iridium (Ir). 
     
     
         2 . The A dental alloy for machining by a CAD/CAM system, of  claim 1 , further comprising 0.1-5.0 wt % of platinum (Pt). 
     
     
         3 . The A dental alloy for machining by a CAD/CAM system, of  claim 1 , further comprising 0.01-2.5 wt % of zinc (Zn). 
     
     
         4 . The dental alloy of  claim 1 , further comprising 0.1-5.0 wt % of platinum (Pt) and 0.01-2.5 wt % of zinc (Zn). 
     
     
         5 . The dental alloy of  claim 1 , further comprising 0.1-1.0 wt % of cobalt (Co). 
     
     
         6 . The dental alloy of  claim 1 , further comprising 0.1-5.0 wt % of platinum (Pt) and 0.1-1.0 wt % of cobalt (Co). 
     
     
         7 . The dental alloy of  claim 1 , further comprising 0.1-0.3 wt % of iridium (Ir), 0.1-1.0 wt % of cobalt (Co) and 0.01-2.5 wt % of zinc (Zn). 
     
     
         8 . The dental alloy of  claim 1 , further comprising 0.1-5.0 wt % of platinum (Pt), 0.1-1.0 wt % of cobalt (Co), and 0.01-2.5 wt % of zinc (Zn).