Abstract: A method for producing a dental prosthesis includes computer modeling of a three-dimensional prosthetic cap based on an human implantation zone. The method first includes casting an impression of the implantation zone of the human body. Then, on the basis of the moulded impression, a digital three-dimensional representation (R1) of the implantation zone is made by sensing the implantation zone with a sensor. From this, a digital representation (R1c) of the internal surface of the prosthesis is defined on the basis of the digital three-dimensional representation (R1) of the implantation zone. A digital three-dimensional representation (R2) of the external surface of the prosthesis is then defined on the basis of the surrounding parameters of the prosthesis and the digital three-dimensional representation (R1c).

Abstract: A method and a device for opto-electrically acquiring the shape of a surface by illuminating the surface (S) with light beams (10) having different wavelengths and which converge at different points on the axial illumination direction (Y) in the vicinity of the surface (S), by spectral analysis of the light reflected or backscattered by the surface (S) in the direction (Y) and by determining distances of points on the surface (S) relative to a reference plane (X, Y) from the wavelength and/or the spectral widths of the light analyzed.