Dental tomography apparatus

• Main Authors: BERGMAN, GERARD P. M, STEENFADT, EBERHARD, SCHREIBER, PETER
• Format: Patent
• Language: English; French; German
• Published: 09.09.1981
• Subjects: APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE; CALCULATING; COMPUTING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; COUNTING; DENTISTRY; DIAGNOSIS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; MEDICAL OR VETERINARY SCIENCE; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING; SURGERY; X-RAY TECHNIQUE

Das Dental-Tomographiegerät besitzt drei Antriebsmotoren zur Verschiebung von Film und Röntgenstrahler in zwei voneinander senkrechten Richtungen in einer Horizontalebene und zur Schwenkung des Film und Röntgenstrahler verbindenden Tragarms. Die Steuersignale für die Motorantriebe werden aus der Gebißkontur abgeleitet, die mit Hilfe einer mit Kontakten besetzten Platte ermittelt werden, auf die der Patient beißt, so daß die Kontakte, deren Lage der form des Gebisses entspricht, betätigt werden. Ein Rechner ermittelt daraus die Kontur des Gebisses und liefert Steuersignale für die Antriebsmotoren. A dental tomography apparatus comprises three drive motors for displacing the film and the X-ray source in two mutually perpendicular directions in a horizontal plane and for pivoting the carrier which connects the film and the X-ray source. The control signals for the motor drives are derived from the contour of the dentition by means of a plate which is covered by contacts on which the patient exerts a pressure by biting, so that the contacts whose position corresponds to the shape of the dentition are actuated. Therefrom, the contour of the dentition is determined by an arithmetic unit which supplies the control signals for the drive motors.