Argon laser effect on demineralization of human enamel

G. Lynn Powell; William I. Higuchi; Jeffrey L. Fox; Duncan Yu; Richard J. Blankenau D.D.S.

doi:10.1117/12.137368

1 June 1992 Argon laser effect on demineralization of human enamel

G. Lynn Powell, William I. Higuchi, Jeffrey L. Fox, Duncan Yu, Richard J. Blankenau D.D.S.

Proceedings Volume 1643, Laser Surgery: Advanced Characterization, Therapeutics, and Systems III; (1992) https://doi.org/10.1117/12.137368
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

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.

Citation Download Citation

G. Lynn Powell, William I. Higuchi, Jeffrey L. Fox, Duncan Yu, and Richard J. Blankenau D.D.S. "Argon laser effect on demineralization of human enamel", Proc. SPIE 1643, Laser Surgery: Advanced Characterization, Therapeutics, and Systems III, (1 June 1992); https://doi.org/10.1117/12.137368

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