The invention relates to a scanning device, comprising a handle (10) to be held by an operating person and a mouthpiece (20). The scanning device is inserted into the mouth of a patient by means of the mouthpiece (20). There, during a recording by means of a sensing apparatus provided in the mouthpiece and a scanning apparatus (60), a section of a dental arch in the mouth is scanned and three-dimensionally measured, wherein many individual scans of different sections of the dental arch are recorded and are combined into a total image. The scanning device also has a drive apparatus (80), which drives the sensing apparatus in such a way that the sensing apparatus moves from one section to a next section of the dental arch in order to perform a particular individual scan, and a control apparatus (70), which controls the drive apparatus (80) in such a way that the drive apparatus moves the sensing apparatus to a desired location of the dental arch.
