| http://www.w3.org/ns/prov#value | - The present invention is a tool which can be placed in a milling unit and used to precisely mill the inner surfaces of screw-retained dental implant prostheses such that the screw head seats flush against the restoration and so that no other contacting surface is present between screw and the prosthesis, such as the axial walls of the screw head or the shaft of the screw.
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