Patent ID: 8828287

Claim:
Method for the manufacturing of a dental restoration by use of CAD/CAM technology, the dental restoration comprising a dental restoration core ( 2 ) and a veneer layer ( 3 ), the veneer layer ( 3 ) being located at predetermined locations on the dental restoration core ( 2 ) and having predetermined thickness at said predetermined locations; the method comprising using the CAD/CAM technology to perform the steps of: manufacturing the dental restoration core ( 2 ), comprising: milling a mould block ( 10 ) to cut away material of the mould block to form a void ( 5 ) and the dental restoration core ( 2 ) in the void, or milling a block of ceramic material to form a void inside the block ( 1 ) and the dental restoration core ( 2 ) in the void, wherein the void has a surface contour ( 7 ) that has open space ( 11 ) in areas where a veneer layer is to be created on the dental restoration core ( 2 ); filling the void ( 5 ) with the surface contour in which the dental restoration core ( 2 ) is positioned, in the block ( 1 ; 10 ; 20 , 21 ) with a slurry or paste containing a constituent material for a veneer layers cold pressing the slurry or paste into the void ( 5 ), the void being arranged to have the slurry cover the dental restoration core ( 2 ) at at least the predetermined locations; heating the slurry or paste in a hardening or pre-sintering process to obtain a hardened veneer structure covering the dental restoration core ( 2 ); milling a contour of the veneer layer into the hardened veneer structure to form the dental restoration ( 2 , 3 ); and sintering the dental restoration.