Abstract: The invention relates to an impression tray, which carries a deformable impression mass in order to prepare an impression of arrangements, shapes or dimensions, in or on the human body, in the mouth, and an impression of at least part of a tooth or of dental structures, wherein sensor devices are present, with which a change of at least one physical property or variable of the impression mass can be captured in a spatially resolved manner. The invention further relates to a method for capturing structures, arrangements or shapes, whereby a deformable impression compound is brought onto or into the structures, arrangements or, is introduced, into the mouth or body and a change of at least one physical property or variable of the impression compound is transmitted to sensor devices when preparing an impression and provided in a form that is suitable for electronic data processing.

Abstract: The invention relates to a carrier for a dental impression material for insertion into an impression tray or attachment to a holding device, having a base area which replicates the human jaw and is delimited on two opposing sides by walls in order to form an approximately U-shaped cross section, wherein at least one optical element is arranged in the base area and/or the walls.

Abstract: A physiologically compatible impression material comprises 0.005 wt % to 4.99 wt %, preferably 0.01 wt % to 1.0 wt %, and particularly preferably 0.025 wt % to 0.25 wt % of at least one luminescent material.

Abstract: The invention relates to an impression tray, such as in particular a dental impression tray, which carries a deformable impression mass in order to prepare an impression of arrangements, shapes and/or dimensions, in particular in or on the human body, preferably in the mouth, and further preferred an impression of at least part of a tooth or of dental structures, wherein furthermore sensor devices are present, by means of which a change of at least one physical property and/or variable of the impression mass can be captured in a spatially resolved manner when preparing an impression and can be provided in a form that is suited for electronic data processing.