Patent ID: 6431871
Filing Date: 2002-08-13
Classification: A61C

Abstract:
A method for computer-controlled production of dentures for the restoration of at least a tooth, a jaw region or a complete jaw, comprising the steps of:taking impression of an upper jaw and a lower jaw for manufacturing an upper jaw cast and a lower jaw cast as well as coordination of these in relation to each other by means of an articulator in a spatial orientation corresponding to a patient situation; Coordinating of at least two fixed points of the upper jaw cast or of the lower jaw cast or at least two fixed points or the cast's mounting device toward the axis of rotation of the articulator or at least two reference points allocated to this; Arranging the upper jaw cast and the lower jaw cast in a measuring facility for determining the shape of the tooth, jaw region, or the complete jaw to be restored, whereby at least two fixed points are positioned in a predetermined setting toward the coordinate system of the measuring facility for virtual representation of the axis of rotation of the articulator or the at least two reference points allocated to this; Digitizing the upper and lower jaw casts or components of the upper and lower casts, taking into consideration the virtual axis of rotation of the articulator or the at least two reference points; Joining together the digitized data of the upper jaw and the lower jaw according to the data transmitted with the survey of the fixed points of the articulators; designing the denture using CAD; and Manufacturing the denture using CAM.