Effect of a new carbon dioxide laser and fluoride on occlusal caries progression in dental enamel

Marines Nobre dos Santos; Daniel Fried; Marcia L. Rapozo-Hilo; John D. B. Featherstone

doi:10.1117/12.469314

3 June 2002 Effect of a new carbon dioxide laser and fluoride on occlusal caries progression in dental enamel

Marines Nobre dos Santos, Daniel Fried, Marcia L. Rapozo-Hilo, John D. B. Featherstone

Proceedings Volume 4610, Lasers in Dentistry VIII; (2002) https://doi.org/10.1117/12.469314
Event: International Symposium on Biomedical Optics, 2002, San Jose, CA, United States

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.

Citation Download Citation

Marines Nobre dos Santos, Daniel Fried, Marcia L. Rapozo-Hilo, and John D. B. Featherstone "Effect of a new carbon dioxide laser and fluoride on occlusal caries progression in dental enamel", Proc. SPIE 4610, Lasers in Dentistry VIII, (3 June 2002); https://doi.org/10.1117/12.469314

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