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DOI Prefix 10.20431 |
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The Uses of Laser-Induced Fluorescence to Distinguish between Dental Caries and Sound Tooth
Ali Abdelrhman Saeed Marouf, Yathrib Awad Khairallah
2.College of Science, Sudan University of Science and Technology, Khartoum, Sudan.
Citation : Ali Abdelrhman Saeed Marouf, Yathrib Awad Khairallah, The Uses of Laser-Induced Fluorescence to Distinguish between Dental Caries and Sound Tooth International Journal of Advanced Research in Physical Science 2018, 5(5) : 24-29
In this paper nitrogen laser (N2) was used to induce emission to distinguish between dental caries and sound teeth.
Three samples of dental caries and one sample of sound teeth have been used to determine the absorbance of dental caries and sound teeth using UV-Vis spectrophotometer then it irradiated by nitrogen laser (N2) with wavelength 337.8 nm, pulse energy 0.04 mJ and pulse time 100 msec. The interaction between ultraviolet laser photons and the teeth was induced visible spectrum recorded by a USB spectrophotometer.
The result showed an emission of broadband from (363 to 627nm) and another sharp peak at the visible region (673nm) and third sharp peak at the infrared region (1013nm) in all samples, the intensity of these bands and peaks are low in dental caries spectra while they were high in the sound tooth spectrum.