Abstract: The invention relates to a method and to a corresponding system for providing a dental prosthesis made from ceramic material having a colour matched to the patient comprising the following steps: (i) receiving a desired nominal colour for the dental prosthesis, determining a deviation between the nominal colour and actual colour of the sintered ceramic material by the control unit and defining a temperature time cycle having a cycle time suitable for compensation of the deviation, for sintering at a defined sintering temperature and creating a corresponding sintering program by the control unit; and (ii) adjusting the actual colour of the selected ceramic material to the nominal colour in the sintering furnace by the sintering program executed by the sintering furnace.

Abstract: The quality of digital impressions geometry and color but also fluorescence, transillumination, reflection and absorption properties can be inferior to single frame 2D/3D images e.g. due to averaging effects, rendering effects, difficult scanning situation etc. This can lead to difficulties in the dental workflow such as the creation of a preparation margin line or detection of diseases such as caries. By providing a correlated view of high-quality single frame images and corresponding 3D models, the dental workflow can be guided to be completed more efficiently using the single frame images.

Abstract: A method for color customization of dental restorations is presented with the steps of providing tooth measurement data, wherein the tooth measurement data comprise at least one insertion area in which the dental restoration is to be inserted, providing restoration data, providing information about staining or glazing colors, generating a color characteristic from the tooth measurement data taking into account the restoration data, and calculating a multicolor target coloration from the color characteristic taking into account the information on staining or glazing colors, as well as output of the multicolor target coloration for color customization of the dental restoration.

Abstract: The invention relates to a method (100) and to a corresponding system (1) for providing a dental prosthesis (10) made from ceramic material (2) having a colour matched to the patient comprising the following steps:—receiving (110) a desired nominal colour for the dental prosthesis (10), determining (120) a deviation between the nominal colour and actual colour of the sintered ceramic material (2) by the control unit (4) and defining (130) a temperature time cycle havoing a cycle time (TH), suitable for compensation of the deviation, for sintering at a defined sintering temperature (TS) and creating a corresponding sintering program (5) by the control unit (4); and—adjusting (140) the actual colour of the selected ceramic material (2) to the nominal colour (4) in the sintering furnace (3) by the sintering program (5) executed by the sintering furnace (3).

Abstract: The invention relates to a system and a method for determining the color of teeth or tooth surfaces, wherein the system comprises a 2D or 3D camera and an attachment on said camera, which sets a geometry of a captured image in such a way that, compared to capturing an image without the attachment, the distance, spatial angle and orientation of tooth surfaces relative to the camera are restricted. The attachment according to the invention can in particular be fitted to the camera in a simple manner.

Abstract: The invention relates to a color reference for calibrating a dental color camera comprising a plurality of fields. A surface of the color reference comprises color fields for color calibration as well as white fields and/or gray fields for a white balance and/or a shading correction.

Abstract: The invention relates to a color reference for calibrating a dental color camera comprising a plurality of fields. A surface of the color reference comprises color fields for color calibration as well as white fields and/or gray fields for a white balance and/or a shading correction.