A dental fluoroscopic imaging system includes a flat panel detector comprising a converter, a plate, a collector, a processing unit, and a transmitter suitable for 2D, intraoral dental fluoroscopy and for 3D extraoral dental fluoroscopy. The converter contains a material capable of transforming low dose radiation received from an emitter after going through the dental examination area into electrical signals. The plate transmits the electric signals to a collector, which amplifies the signals. The processing unit processes the signals into digital images, and the transmitter transfers digital images sequentially to a host computer having software that acquires, processes, transforms, records, freezes, and enhances 2D and 3D images, and compiles videos having video frame rates of between 3 and 100 frames per second. Two dimensional images and video are obtained using a single flat panel detector, while three dimensional images and video are obtained using two flat panel detectors.