Influence of multi-wavelength laser irradiation of enamel and dentin surfaces on surface morphology and permeability

Nai-Yuan N. Chang; Jamison Jew; Jacob C. Simon; Kenneth H. Chan; Robert C. Lee; William A. Fried; Jinny Cho; Cynthia L. Darling; Daniel Fried

doi:10.1117/12.2256734

8 February 2017 Influence of multi-wavelength laser irradiation of enamel and dentin surfaces on surface morphology and permeability

Nai-Yuan N. Chang, Jamison Jew, Jacob C. Simon, Kenneth H. Chan, Robert C. Lee, William A. Fried, Jinny Cho, Cynthia L. Darling, Daniel Fried

Author Affiliations +

Proceedings Volume 10044, Lasers in Dentistry XXIII; 100440H (2017) https://doi.org/10.1117/12.2256734
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

UV and IR lasers can be used to specifically target protein, water, and the mineral phase of dental hard tissues to produce varying changes in surface morphology. In this study, we irradiated enamel and dentin surfaces with various combinations of lasers operating at 0.355, 2.94, and 9.4 μm, exposed those surfaces to topical fluoride, and subsequently evaluated the influence of these changes on surface morphology and permeability. Digital microscopy and surface dehydration rate measurements were used to monitor changes in the samples overtime. The surface morphology and permeability (dehydration rate) varied markedly with the different laser treatments on enamel. On dentin, fluoride was most effective in reducing the permeability.

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Nai-Yuan N. Chang, Jamison Jew, Jacob C. Simon, Kenneth H. Chan, Robert C. Lee, William A. Fried, Jinny Cho, Cynthia L. Darling, and Daniel Fried "Influence of multi-wavelength laser irradiation of enamel and dentin surfaces on surface morphology and permeability", Proc. SPIE 10044, Lasers in Dentistry XXIII, 100440H (8 February 2017); https://doi.org/10.1117/12.2256734

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