Preventive effects of carbon dioxide laser and casein phosphopeptide amorphous calcium phosphate fluoride varnish on enamel demineralization: A comparative, in vitro study

Aim The aim of the present study was to compare the effects of carbon dioxide (CO2) laser and casein phosphopeptide amorphous calcium phosphate (CPP‐ACP)fluoride varnish on enamel demineralization. Methods Human teeth were randomly assigned to three groups. The enamel was treated with fluoride varnish, 10.6 μm CO2 laser, or no treatment (control), followed by 9 days of pH cycling. Baseline and final FluoreCam images were used to quantify the area, intensity, and impact of demineralization; cross‐sectional microhardness was used to measure the mechanical properties of the enamel. Results There were statistically‐significant changes in the area, intensity and impact of demineralization in the control and laser groups (P