Patent ID: 9693840
Date: 2017-07-04
CPC Classifications: A61C,B23C,F04C,Y10T

Claim:
1. Milling method for the manufacture of dental prostheses, wherein, on a multi-axis CNC-milling machine, with a dental milling tool for milling dental prostheses white bodies out of pre-sintered raw white bodies, which dental prostheses white bodies afterwards have to be fully-sintered into dental prostheses, using 3D free-form milling along generated travel paths, a dental prosthesis white body is milled out of a pre-sintered ceramic white body, especially a pre-sintered zirconium oxide white body, wherein the ceramic white body is provided in the form of a plate or a round blank, and wherein the dental milling tool is driven from above into the solid material of the ceramic white body and, prior to this, the ceramic white body is clamped, and, subsequently, by layer-wise removal of material along the generated paths, the dental prosthesis white body is milled out of the ceramic white body, characterized in that the dental milling tool comprises a hemispherical rounded ball end portion ( the dental milling tool further comprises two chip flutes ( all the flutes (