Photoluminescence
spectra of sound tooth and those of different carious stages
Accepted 22nd January, 2019
Ali Abdelrhman Saeed Marouf1* and
Yathrib Awad Khairallah2
1Institute of Laser, Sudan University
of Science and Technology, Khartoum, Sudan. 2College of Science, Sudan University
of Science and Technology, Khartoum, Sudan.
In this study, nitrogen laser (N2) was used to
induce emission in human teeth to distinguish between dental caries and sound
teeth. Three samples of dental caries and one sample of sound teeth was used to
obtain fluorescence spectra illuminated with wavelengths of 337.8 nm, pulse
energy 0.04 mJ and pulse time 100 ms. The absorbance of dental caries and sound
teeth was determined using UV-Vis spectrophotometer. The result showed an
emission of broad band that ranged from 363 to 627 nm, respectively. A
significant decrease of the fluorescence signal intensity related to the carious
stage in dental caries was observed, while it was higher in the sound tooth
spectrum.
This is an open access article
published under the terms of the
Creative Commons Attribution
License, which permits unrestricted use, distribution, and
reproduction in any medium, provided the original work is
properly cited.
Cite this article as:
Marouf AAS, Khairallah YA (2019). Photoluminescence spectra of sound tooth and
those of different carious stages. J. Biol. Ser. 2(2): 071-075.
