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Proceedings Paper

Enhancing caries resistance with a short-pulsed CO2 9.3 μm laser: a laboratory study (Conference Presentation)
Author(s): Peter Rechmann; Beate M.T. Rechmann; William H. Groves; Charles Le; Marcia L. Rapozo-Hilo; John D. B. Featherstone
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Paper Abstract

The objective of this laboratory study was to test whether irradiation with a new 9.3µm microsecond short-pulsed CO2-laser enhances enamel caries resistance with and without additional fluoride applications. 101 human enamel samples were divided into 7 groups. Each group was treated with different laser parameters (Carbon-dioxide laser, wavelength 9.3µm, 43Hz pulse-repetition rate, pulse duration between 3μs to 7μs (1.5mJ/pulse to 2.9mJ/pulse). Using a pH-cycling model and cross-sectional microhardness testing determined the mean relative mineral loss delta Z (∆Z) for each group. The pH-cycling was performed with or without additional fluoride. The CO2 9.3μm short-pulsed laser energy rendered enamel caries resistant with and without additional fluoride use.

Paper Details

Date Published: 28 April 2016
PDF: 1 pages
Proc. SPIE 9692, Lasers in Dentistry XXII, 969207 (28 April 2016); doi: 10.1117/12.2224641
Show Author Affiliations
Peter Rechmann, Univ of California San Francisco (United States)
Beate M.T. Rechmann, Univ of California San Francisco (United States)
William H. Groves, Convergent Dental Inc. (United States)
Charles Le, 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. 9692:
Lasers in Dentistry XXII
Peter Rechmann; Daniel Fried, Editor(s)

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