The invention relates to a dental radiology apparatus (10) comprising an X-radiation generator (18) and a sensor (20) opposite it receiving the radiation that has come from the generator, the apparatus being suitable for producing a panoramic image of an object by displacement of the assembly formed of the generator and the sensor along a given trajectory in a plane (P), the generator being provided with at least one collimation slit (18e, 18f) elongated along an axis (Z) perpendicular to the plane (P) so as to produce an X-ray beam elongated along this axis in a first mode of operation, the sensor with an array of pixels being elongated along the Z-axis in correspondence with said beam, characterized in that the apparatus comprises: - means of pivoting the sensor by 90° in order that it is elongated in a direction parallel to the plane P, - means (22) of switching the generator provided with the said at least one collimation slit (18e, 18f) from the first mode of operation to a second mode of operation so as to produce, in this second mode, an X-ray beam elongated parallel to said direction of the sensor, in order that the sensor positioned in this way is always in correspondence with said beam.
