A method for the manufacture of a prosthesis, a machine milled plastic material intermediate and the prosthesis

Abstract

A method for the manufacture of a prosthesis of individual preformed denture prosthesis teeth (14) and of a plastic material for forming a prosthesis base (12) wherein the teeth are embedded in pockets (20) and adhesively bonded, wherein the prosthesis base (12) is made by a CAD / CAM process, characterized in that the method comprises: - a first milling step (MSl), wherein an occlusal side (17) of the prosthesis base (12) is milled down so as to form the pockets (20) therein, wherein the pockets remain closed at their base after the first milling step for the insertion of the teeth; - an insertion step (IS), following the first milling step (M81), wherein each tooth (14) is inserted, such as manually inserted, and fixed in a distinct pocket (20) for said tooth without prior trimming of said tooth; - a second milling step (M82), following the insertion step (IS), wherein the basal side (18) of the prosthesis base (12) is subsequently milled down, such as for wear; wherein at least the first and second milling steps (M81, M82) occur in an automated milling machine, and wherein in the first milling step (Sl) the pockets are milled such that the inner surface of each pocket conforms to the substantially entire contour of the base of a corresponding preformed tooth for receiving said tooth therein.