Diode laser irradiation and fluoride uptake in human teeth

Area of Science:

• Dental materials science
• Biophotonics
• Caries prevention research

Background:

• Topical fluoride application is a cornerstone of dental caries prevention.
• Understanding novel methods to enhance fluoride efficacy is crucial for improving oral health outcomes.
• Diode lasers have emerged as a potential tool in various dental procedures.

Purpose of the Study:

• To chemically evaluate the effect of diode laser irradiation on fluoride uptake in human enamel.
• To compare fluoride uptake with and without diode laser application.
• To investigate laser-induced compositional changes in enamel fluoride content.

Main Methods:

• Human tooth enamel surfaces were treated with fluoride gel, diode laser, or a combination.
• A fluoride ion-selective electrode was used for quantitative analysis of fluoride uptake.
• Enamel samples were analyzed before and after laser irradiation and topical fluoride application.

Main Results:

• Diode laser treatment, in conjunction with fluoride gel, resulted in a significant increase in fluoride uptake (up to 15-fold).
• Both laser and fluoride treatments showed statistically significant increases in fluoride uptake (p<0.001).
• No significant difference in fluoride uptake was observed between applying the laser before or after fluoride treatment.

Conclusions:

• Diode laser application enhances the capability of enamel to uptake fluoride.
• Laser-assisted fluoride application provides increased protection to the enamel surface against acid challenges.
• This approach holds promise for advanced caries prevention strategies.