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.本発明は、歯科印象用トレー（３）などの印象用トレー（２）に関する。該印象用トレーは変形可能な印象用組成物（１０）を保持し、具体的には人の体内または体表、好ましくは口腔内の配置、形状および／または寸法の印象、さらに好ましくは歯（２）または歯科構造（上顎１）の少なくとも一部の印象を作製することができる。前記印象用トレーは、さらにセンサー装置（６）を有し、該装置により、印象作製時に印象用組成物（１０）の少なくとも１つの物理的性質および／または変数の変化を空間分解された状態で捉えて電子情報処理に適した形で提供することができる。また本発明は、構造、配置または形状を捉える方法、好ましくは口腔内の歯の構造、配置または形状、あるいは人体における構造、配置または形状を捉える方法などに関する。
