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Title: Effects of CO2 laser on fluoride uptake in enamel
Authors: Chin-Ying, S.H. 
Xiaoli, G. 
Jisheng, P.
Wefel, J.S.
Keywords: CO2 laser
Issue Date: 2004
Citation: Chin-Ying, S.H., Xiaoli, G., Jisheng, P., Wefel, J.S. (2004). Effects of CO2 laser on fluoride uptake in enamel. Journal of Dentistry 32 (2) : 161-167. ScholarBank@NUS Repository.
Abstract: Objectives. The objective of this study was to investigate the effects of CO2 laser on fluoride uptake in the loosely- and firmly-bound forms in enamel. Methods. Five human molars were cut into halves before being treated with 2.0% NaF topical gel. Each half had three windows on the enamel surface, including one control and two experimental windows irradiated by two laser therapies. One half of each tooth was treated with 1 M KOH solution to remove the loosely-bound fluoride (calcium fluoride). A tooth section was obtained from each window and the relative fluorine concentration was analyzed with Secondary Ion Mass Spectrometry (SIMS). The morphology of the enamel surfaces in the windows was examined using an Environmental Scanning Electron Microscope (ESEM). Results. Significant laser-induced increases in the uptake of fluoride were revealed in both loosely-bound and firmly-bound apatitic fluoride, with both laser treatments (all p<0.001). Calcium fluoride-like deposits on the enamel surfaces receiving the combined laser-fluoride treatment were revealed by ESEM. Conclusion. The finding of this study substantiated the laser effect in increasing the fluoride uptake into enamel. © 2003 Elsevier Ltd. All rights reserved.
Source Title: Journal of Dentistry
ISSN: 03005712
DOI: 10.1016/j.jdent.2003.10.004
Appears in Collections:Staff Publications

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