The invention relates to a 3D intraoral scanner which, with a single sensor (10) or a number of sensors that are rigidly connected to one another and a de-flection system (20), in particular as a mirror system or a prism system, simultaneously records spaced apart partial measurement volumes (MV1, MV2) as measurement data, and performs a correction using the measurement data of a previously calibrated overall measurement volume (MV) consisting of said individual partial measurement volumes (MV1, MV2).
