Abstract: The invention concerns methods and devices for obtaining a radiographic image of a tooth and its surrounding environment. The method and the device are essentially characterized in that cylindrical rods produced from a material capable of transforming X-rays into light rays are arranged side by side for receiving the X-rays emitted by a source after they have passed through the tooth and its surrounding environment so as to both guide them and transform them into light rays, means thereafter converting said light rays into electric signals which are processed to produce the radiographic image.

Abstract: Ionizing radiation sensors, such as X-ray or Gamma-ray sensors, used in industrial or medical radiology imaging systems. The sensor (1) employs a charge-coupled device (20) coupled to a scintillator element (51) and a filter for impeding the passage of ionizing radiation not transformed by the scintillator element (51). The filter is formed by the combination of a non-optical element which consists of a group of tubular guides (40), wholly or partly metallic, and the scintillator element (51) which consists of a scintillator material charged with absorbant particles (52). The scintillator element (51) is housed in the non-optical element (40). The sensor (1) is particularly usable in the field of intra-oral dental radiology.

Abstract: An apparatus for providing a dental radiological image on the monitor of a display system is provided by the present invention.