| 摘要 |
A panoramic dental x-ray unit. The unit includes a support rotating about an axis and carrying, in the opposite position, an x-ray source and detector which move following a predetermined trajectory. The unit further includes means for acquiring images of the dental arch of a patient corresponding to the positions of the detector and of the source with respect to the dental arch. There is also provided means for reconstruction of a two portions of a panoramic image corresponding respectively to two disconnected portions of the dental arch, the reconstruction being performed from certain acquired images which each contain at least one piece of information concerning the two disconnected portions of the dental arch.
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