Abstract: A method and apparatus for producing data for making dental prostheses, wherein the data can be produced on the basis of a model (2) which comprises individual segments (3a, 3b, 3c, . . . ), such as representing a tooth, a preparation, a gingival area, a tooth gap or a small group of teeth, from different directions in space, and a storing device for storing the shape data obtained thereby, and—second shape data (12) of only the one segment (3a, 3b, 3c, . . . ), only part of the segment (3a, 3b, 3c, . . . ) being scanned, and the segment (3a, 3b, 3c, . . . ) being arranged in a fixed orientation relative to a reference, and b) a comparing device for comparing the first and second shape data (1, 12) to determine the orientation of the first shape data (1) relative to the reference.

Abstract: Surface mapping and/or generation device is provided, with a device for mapping 3D data of at least one denture base object such as a tooth stump or an implantation abutment, and an environment thereof, as well as with a device for the data-based generation and production of a denture part incorporating the 3D data of the denture base object. Additionally provided are a device for determining and/or defining a placement direction of the denture part that is to be slipped onto the denture base object, and a device for determining and producing a primary part that is to be slipped onto the denture base object before the denture part and that yields a desired placement direction for the denture part which is different from the placement direction that exists for slipping the primary part onto the denture base object. The device for data-based generation and production of a denture part is designed to generate and produce the latter by incorporating the 3D data of the primary part.

Abstract: A surface mapping and generating device which has devices for the process and/or cost optimization, in particular raw material recovery devices, an automatic control of the intensity of a used laser light, devices for carrying out a calibrating procedure by evaluating overlap errors at matching points, devices for archiving especially three-dimensional data of the jaw and/or for modeling the bite position of the upper and the lower jaws, devices for the optimized preparation of at least one dental stump for the production and placement of a dental prosthesis thereon and/or devices for taking into consideration the bite position of the upper and lower jaws.