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US 8,986,009 B2Granted
Method for determining 3-D data from at least one prepared maxillary area
AssigneeDegudent GmbH
InventorsLothar Völkl, Stefan Fecher, Hartmut Brinkmann, Ralf Jaumann
Life of this patent
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Abstract
A process for determining 3-D data of at least one prepared jaw area, such as a prepared tooth stump, by mechanically scanning the jaw area and digitizing the measured values determined during the scanning. The jaw area is prepared with a dental instrument having positions which are optically measured during the preparation, and the 3-D data is determined from the positions of the dental instrument that are associated with the prepared jaw area.
Claims18
A process for producing a denture, comprising the steps of:
- ablating a tooth or tooth stump in a jaw area to a desired contour using a rotating dental instrument,
- measuring positions of the rotating dental instrument during the ablating step using an optical device;
- obtaining digital 3-D data of said tooth or tooth stump having said desired contour based on the measured positions of the rotating dental instrument after the ablating step;
- processing the digital 3-D data using CAD software;
- producing the denture based on the processed 3-D data;
- wherein an inner contour of said denture is determined and calculated from said processed 3-D data, and an outer contour of said denture is determined and calculated from data taken from a library or from scanning said jaw area.
3 more elements
Dependencies are inferred from the claim text.