Elemental content of enamel and dentin after bleaching of teeth (a comparative study between laser-induced breakdown spectroscopy and x-ray photoelectron spectroscopy)
| Autor: | Ashraf A. Eldakrouri, Doaa Ahmed, Hisham Imam |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Enamel paint Analytical chemistry General Physics and Astronomy Electron spectroscopy stomatognathic diseases medicine.anatomical_structure stomatognathic system X-ray photoelectron spectroscopy visual_art Dentin medicine visual_art.visual_art_medium Spectral analysis sense organs Laser-induced breakdown spectroscopy Spectroscopy |
| Zdroj: | Journal of Applied Physics. 113:234701 |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.4811186 |
| Popis: | The elemental content of the superficial and inner enamel as well as that of dentin was analyzed using laser-induced breakdown spectroscopy (LIBS) and x-ray photoelectron spectroscopy (XPS) of bleached and unbleached tooth specimens. It is thus clear from the spectral analysis using both the LIBS and XPS technique that elemental changes (though insignificant within the scopes of this study) of variable intensities do occur on the surface of the enamel and extend deeper to reach dentin. The results of the LIBS revealed a slight reduction in the calcium levels in the bleached compared to the control specimens in all the different bleaching groups and in both enamel and dentin. The good correlation found between the LIBS and XPS results demonstrates the possibility of LIBS technique for detection of minor loss in calcium and phosphorus in enamel and dentin. |
| Databáze: | OpenAIRE |
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