| 摘要 |
<p>An apparatus (1) for dental radiography is described. The apparatus (1) comprises a support (2, 3, 4, 6) allowing moving an imaging system along predefined trajectories for producing panoramic images and tomographic images of the dentition of a patient. The imaging system comprising an X-ray source (7), and a first X-ray sensor (9) for producing the panoramic images, and a second X-ray sensor (10) for producing the tomographic images, wherein the first X-ray sensor (9) and the second X-ray sensor (10) are arranged on an alternating mechanism (8), which allows to make either the first sensor (9) or the second sensor (10) face the X-ray source (7). The alternating mechanism (8) brings either a first sensor axis of the first sensor (9) or a second sensor axis of the second sensor (10) towards the X-ray radiation source (7) by allowing a pivoting motion around an alternation axis. The first sensor axis and the second sensor axis intersect at an angle between 40° and 140°, preferably between 80° and 100°, most preferably 90°, if the first sensor axis and the second sensor are projected along the alternation axis on a plane perpendicular to the alternation axis.</p> |
