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Proceedings Paper

Argon laser effect on demineralization of human enamel
Author(s): G. Lynn Powell; William I. Higuchi; Jeffrey L. Fox; Duncan Yu; Richard J. Blankenau D.D.S.
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Paper Abstract

Previous studies have recorded the reduction of caries-like lesions in extracted human teeth that have been irradiated with CO2 laser. Other studies have shown a decrease in dissolution rate of enamel that has been irradiated with CO2 laser and acid resistance. This study was conducted to evaluate the effects of Argon laser irradiation on acid resistance and demineralization of dental enamel. Human enamel was laser irradiated with approximately 60 J/cm2 and 120 J/cm2. The amount of demineralization was determined in a rotating disk assembly (0.1 M acetate buffer, pH-4.5) for 24 hours and the results determined and plotted against the nonlased control using microradiographs and computerized imaging. The amount of dissolution of tooth structure lost to demineralization in 4.5 pH acid bath in a 24 hour period was reduced from approximately 140 micrometers to approximately 70 micrometers . This study show that demineralization is reduced when human enamel is exposed to Argon laser irradiation.

Paper Details

Date Published: 1 June 1992
PDF: 6 pages
Proc. SPIE 1643, Laser Surgery: Advanced Characterization, Therapeutics, and Systems III, (1 June 1992); doi: 10.1117/12.137368
Show Author Affiliations
G. Lynn Powell, Univ. of Utah (United States)
William I. Higuchi, Univ. of Utah (United States)
Jeffrey L. Fox, Univ. of Utah (United States)
Duncan Yu, Univ. of Utah (United States)
Richard J. Blankenau D.D.S., Creighton Univ. School of Dentistry (United States)

Published in SPIE Proceedings Vol. 1643:
Laser Surgery: Advanced Characterization, Therapeutics, and Systems III
R. Rox Anderson M.D., Editor(s)

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