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Proceedings Paper

Effect of a new carbon dioxide laser and fluoride on occlusal caries progression in dental enamel
Author(s): Marines Nobre dos Santos; Daniel Fried; Marcia L. Rapozo-Hilo; John D. B. Featherstone
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Paper Abstract

The purpose of this study was to investigate the effect of a new TEA carbon dioxide (CO2) laser (.9.6 micrometers , 5-8 microsecond(s) pulse duration) combined with fluoride (F), on the inhibition of caries-like progression in occlusal surfaces in sound and demineralized enamel. Of 120 occlusal tooth surfaces (10 per group), 90 were partially demineralized in a 50% HAP/0.1 M Lactic acid/carbopol solution (pH 5.0). Samples were treated with/without the laser (2.0 j/cm2 or 3.0 J/cm2) and/or F (as APF). Caries-like progression was tested by 5 days of pH cycling. Results were assessed by cross-sectional quantitative microradiography. The percent inhibition of caries progression with laser and/or F ranged from 87-170%. This new TEA CO2 laser produced significant protective effect against lesion progression, and in combination with fluoride treatment lesion reversal occurred.

Paper Details

Date Published: 3 June 2002
PDF: 8 pages
Proc. SPIE 4610, Lasers in Dentistry VIII, (3 June 2002); doi: 10.1117/12.469314
Show Author Affiliations
Marines Nobre dos Santos, Univ. Estadual de Campinas (Brazil)
Daniel Fried, Univ. of California/San Francisco (United States)
Marcia L. Rapozo-Hilo, Univ. of California/San Francisco (United States)
John D. B. Featherstone, Univ. of California/San Francisco (United States)


Published in SPIE Proceedings Vol. 4610:
Lasers in Dentistry VIII
Peter Rechmann; Daniel Fried; Thomas Hennig, Editor(s)

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