| abstract |
A method and apparatus for acquiring and processing images of a tooth, comprising means for exciting a zone ( 12 ) of a tooth by monochromatic ultraviolet light pulses in alternation with visible light pulses, video means ( 32, 34, 36, 38 ) for taking fluorescence images emitted by the tooth in two respective high and low energy wavelength bands of the emission spectrum, and data processor means ( 40 ) for taking the ratio of the fluorescence spectrum intensities in said two wavelength bands and for deducing therefrom the presence or the absence of caries in the zone ( 12 ) under examination of the tooth. |