The invention comprises at least one light source (4) for emitting an irradiation beam (5), at least one projection means (9) for generating a projection pattern (30,40), a focal distance defined for the dental camera And a focusing optical sys6 for displaying the projection patterns 30 and 40 on the sharp focus plane 7 in the object 8. The projection patterns 30 and 40 projected onto the object 2 are projected onto the object 2 To a camera (1) and method for three-dimensional measurement of a tooth object (2), which is reflected by an observation beam (10) and obtained by a sensor (11). In measuring the object 2, the focusing optics 6 are arranged between the plurality of defined scan positions 12, 13, 14, 54 at a focal distance 8 of the sharp focal plane 7 to the camera 1 And the first image 35 and the at least one second image 36 are acquired by the sensor 11 for each scan position 12, 13, 14, And the sensor 11 or the projection means 9 makes a back and forth oscillation motion in the transverse direction with respect to the beam path of the observation beam and the first image 35 is acquired at the first sensor position 18 of the sensor 11 And the second image 36 is obtained at the second sensor position 19 of the sensor 11 during which the sensor 11 is moved along a first sensor axis parallel to the sensor pixel row or parallel to the sensor pixel row Is shifted along the second sensor axis by a distance 20 between the first sensor position 18 and the second sensor position 19 corresponding to one width of the pixels 33 and 34 of the sensor 11, An image 35 is obtained at a first position of the projection means 9 and a second image 36 is obtained at a second position of the projection means 9, 30 of the sensor 11 along the first sensor axis parallel to the pixel row or along the second sensor axis parallel to the pixel column by one width of the pixels 33, 34 of the sensor 11, The dimension is shifted by a predetermined distance 20 in such a manner that it is m
