Method and device for the acquisition and treatment of...

A - Human Necessities – 61 – B

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A61B 5/00 (2006.01)

Patent

CA 2448936

A method and device for the acquisition and treatment of dental images, comprising means for the excitation of a region (12) of a tooth using monochromatic ultraviolet light pulses alternating with visible light pulses, video means (32, 34, 36, 38) for taking images of the fluorescence emitted by the tooth in two high and low energy wavelength bands of the emission spectrum and means (40) for processing the information in order to compare the spectral intensities of the fluorescence in said two wavelength bands and to ascertain the presence or absence of caries in the examined region (12) of the tooth.

Procédé et dispositif d'acquisition et de traitement d'images d'une dent, comprenant des moyens d'excitation d'une zone (12) d'une dent par des impulsions de lumière monochromatique ultraviolette en alternance avec des impulsions de lumière visible, des moyens vidéo (32, 34, 36, 38) de prise d'images de la fluorescence émise par la dent dans deux bandes de longueurs d'onde haute et basse énergie respectivement du spectre d'émission et des moyens (40) de traitement de l'information pour faire le rapport des intensités spectrales de la fluorescence dans ces deux bandes de longueurs d'onde et en déduire la présence ou l'absence de caries dans la zone (12) examinée de la dent.

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