Laser-induced autofluorescence spectroscopy of dental caries.
作者： K König , G Flemming , R Hibst , None
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摘要: We studied spectral autofluorescence characteristics of dental caries. A wide range carious lesions revealed characteristic emission endogenous fluorophores with strong fluorescence bands in the red region when excited 407 nm line radiation a krypton ion laser. Healthy hard tissue exhibited no red. The spectra, excitation spectra as well reflectance were found to be typical for fluorescent porphyrins, mainly protoporphyrin IX. possible source these porphyrins within tissues is bacterial biosynthesis. Non-invasive sensitive vivo caries detection by means appropriate sources and porphyrin detectors should possible.
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