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. The invention further relates to a method for capturing structures, arrangements or shapes, such as preferably for capturing dental structures, arrangements or shapes in the mouth or in the human body, whereby a deformable impression compound is brought onto or into the structures, arrangements or shapes in particular, is introduced, into the mouth or body and a change of at least one physical property and/or variable of the impression compound is transmitted there in a spatially resolved manner directly to sensor devices when preparing an impression and is captured by the sensor devices and, furthermore, provided in a form that is suitable for electronic data processing.
