Patent ID: 7689310

Claim:
A method for manufacturing a dental prosthesis, comprising: (a) providing at least one coping configured for implantation at a dental site, each of said at least one coping having a corresponding external surface; (b) providing a three-dimensional (3D) virtual model of said dental prosthesis having at least one virtual internal surface, each of said at least one virtual internal surface being complementary to a corresponding said external surface of each of said coping, respectively; (c) generating computerized numerical control (CNC) instructions corresponding to said 3D virtual model; (d) producing a wax model, comprising at least one wax model layer, corresponding to said prosthesis, in situ with the respective each of said coping by means of material removal operations based on said CNC instructions, each of said wax model layer having uniform or non-uniform thickness whereby the or each wax model layer has uniform or non-uniform strength, thereby enabling the strength of the corresponding prosthesis to be maximized based on external factors selected from the group comprising force, dimensions, tolerance, fit, and material used; and (e) producing a dental prosthesis in situ on said coping from said wax model.