Patent ID: 7775713

Claim:
An arrangement for use with an X-ray source applying radiation at a moment of imaging to a dental structure in a mouth of a patient, the arrangement comprising: a housing having a detector configured to detect radiation at the moment of imaging and to provide intraoral X-ray image data based on the detected radiation, the housing configured for positioning in the mouth of the patient in at least two complementary imaging positions, in one of which imaging positions the housing is inverted with respect to its orientation in the other imaging position; an orientation sensor coupled to the housing and configured to sense orientation of the housing at the moment of imaging; the orientation sensor further configured to identify which imaging position the housing is in at the moment of imaging by comparing the sensed orientation of the housing at the moment of imaging to a gravitational vector; a display unit; and a communication link between the detector and orientation sensor and the display unit, the communication link configured to allow communication of the intraoral X-ray image data and the identified imaging position to the display unit; wherein the display unit comprises a display and a controller that is configured to display an X-ray image on the display in a proper orientation by processing the intraoral X-ray image data and the identified imaging position; wherein the controller is configured to identify features of the dental structure of the patient and display the X-ray image on the display in a proper orientation by processing the intraoral X-ray image data, identified imaging position, and identified features of the dental structure of the patient; wherein the features of the dental structure of the patient comprise a root portion of an imaged tooth and wherein the controller is configured to compare the root portion to the gravitational vector to determine whether the intraoral X-ray image data relates to an upper or lower tooth in the mouth of the patient.