In Vivo Caries-Like Lesion Prevention with Argon Laser: Pilot Study

Abstract

Objective: This clinical pilot study was conducted to investigate the effectiveness of argon laser irradiation to reduce demineralization or loss of tooth structure in vivo. Summary Background Data: In vitro research previously demonstrated the ability of argon laser irradiation to reduce demineralization or loss of tooth structure. Methods: Using the Ogaard model of producing demineralization, the experimental teeth were irradiated with argon laser of 250 mW (producing approximately 12 J/cm²) prior to banding. Polarized light evaluation of the sectioned, extracted teeth was used to determine the amount of demineralization. Results: Results showed a 29.1% reduction in demineralization in the experimental teeth as compared to the bilateral control teeth. Conclusion: Low-power argon laser irradiation significantly reduced demineralization clinically.