Dental casting alloy

Abstract

A dental casting alloy based on Ni and Ti and having addition of cast of Mo, Fe, Cu and Co has the following composition in weight %:Ti: 40-50 % Mo 0.2-20 % Fe 0.1-1.5% Cu. 0.1-1.0% Co 0.1-0.5% Ni balance to a total of 100%; the alloy has advantages over prior alloys for dental castings including a high level of fluidity, a low shrinkage percentage, a low melting temperature and super elasticity

1 . A dental casting alloy based on Ni and Ti and having an addition of each of Mo, Fe, Cu and Co has the following composition in weight %:  
       
         
           
                 
                 
                 
               
                     
                     
                 
                     
                     
                 
                     
                   Ti: 
                    40-50% 
                 
                     
                   Mo: 
                   0.2-2.0% 
                 
                     
                   Fe: 
                   0.1-1.5% 
                 
                     
                   Cu: 
                   0.1-1.0% 
                 
                     
                   Co: 
                   0.1-0.5% 
                 
                     
                   Ni 
                   balance to a total of 100%. 
                 
                     
                     
                 
                     
                     
                 
             
                
                
               
               
                
                
                
                
                
                
                
                
               
            
           
         
       
         
     
     
         2 . A dental casting alloy according to  claim 1  containing 44 to 46% of said Ti.  
     
     
         3 . A dental casting alloy according to  claim 1  or  2  containing: 
 0.5 to 1.5% of said Mo  
 0.3 to 1% of said Fe  
 0.3 to 0.8% of said Cu  
 0.2 to 0.4% of said Co.  
 
     
     
         4 . A dental alloy according to  claim 1  containing in weight %  
       
         
           
                 
                 
                 
               
                     
                     
                 
                     
                     
                 
                     
                   Ti 
                   45% 
                 
                     
                   Mo 
                    1% 
                 
                     
                   Fe 
                    0.5% 
                 
                     
                   Cu 
                    0.5% 
                 
                     
                   Co 
                    0.3% 
                 
                     
                   Ni 
                   balance to 100%. 
                 
                     
                     
                 
                     
                     
                 
             
                
                
               
               
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         5 . A dental prosthesis cast from an alloy of  claim 1 ,  2 ,  3  or  4 .  
     
     
         6 . Use of an alloy as defined in  claim 1 ,  2 ,  3  or  4  in the manufacture of a dental prosthesis.  
     
     
         7 . In a method of implanting a dental prosthesis, the improvement wherein the prosthesis is of a dental casting alloy as defined in  claim 1 ,  2 ,  3  or  4 .