Ceramic or composite blank

Abstract

A ceramic or composite blank for the purpose of attaching it to at least one magnet in the clamping chuck of a machine for material-removing processing, supporting a magnetic or magnetizable part on at least one of its two opposite sides.

1 . Ceramic or composite blank having two opposite sides, said blank comprising a magnetic or magnetizable part supported on at least one of said two opposite sides.  
   
   
       2 . Blank in accordance with  claim 1 , wherein the part is embedded at least partly in the blank.  
   
   
       3 . Blank in accordance with  claim 1 , wherein the part is a cylinder or a cuboid block.  
   
   
       4 . Blank in accordance with  claim 1 , wherein the part is made of iron or steel.  
   
   
       5 . Blank in accordance with  claim 1 , wherein the part is flat on a side facing the clamping chuck.  
   
   
       6 . Blank in accordance with  claim 1 , wherein the part is structured on a side facing the clamping chuck.  
   
   
       7 . A method of preparing a dental prosthesis comprising: 
 a) providing a blank in accordance with  claim 1;     b) mounting the blank by the magnetic or magnetizable part into a milling machine; and    c) processing the blank to form a dental prosthesis.