ABSTRACT The invention relates to an impression tray (2), such as in particular a dental impression tray (3), which carries a deformable impression mass (10) 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 (2) or of dental structures (upper jaw I), wherein furthermore sensor devices (6) are present, by means of which a change of at least one physical property and/or variable of the impression mass (10) 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.
