Effect of a new carbon dioxide laser and fluoride on sound and demineralized enamel

Marines Nobre dos Santos; John D. B. Featherstone; Daniel Fried

doi:10.1117/12.424504

27 April 2001 Effect of a new carbon dioxide laser and fluoride on sound and demineralized enamel

Marines Nobre dos Santos, John D. B. Featherstone, Daniel Fried

Proceedings Volume 4249, Lasers in Dentistry VII; (2001) https://doi.org/10.1117/12.424504
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States

Abstract

The present study aimed to test the hypothesis that irradiation of dental enamel by a TEA carbon dioxide laser together with fluoride, can effectively inhibit caries-like progression in sound and demineralized enamel. Blocks of human sound and demineralized dental enamel were divided into 11 treatment groups. Eighty enamel blocks were partially demineralized in a 50 percent HAP/0.1 M lactic acid/carbopol solution. Samples were treated with/without laser and/or F according to the above groups. The blocks were then submitted to 5 days of pH cycling. Microradiography was performed on 100 micrometers thin sections to determine the relative mineral loss as (Delta) Z and the percentage of caries inhibition for the laser and F treated groups. Mean (Delta) Z values for groups I-X were, respectively: 1043; 683; 614; 2294; 1803; 1708; 1547; 1791; 1656;; and 1385. The percent caries inhibition for groups II, III, V-X was respectively: 35, 41; 49; 62; 42; 53 and 76 percent. The combination of this new TEA CO₂ laser and F treatment produced a significant protective effect against lesion progression.

Citation Download Citation

Marines Nobre dos Santos, John D. B. Featherstone, and Daniel Fried "Effect of a new carbon dioxide laser and fluoride on sound and demineralized enamel", Proc. SPIE 4249, Lasers in Dentistry VII, (27 April 2001); https://doi.org/10.1117/12.424504

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