Introduction: Fluoride is fundamental in the prevention of dental caries; it
enhances the precipitation of calcium and phosphates, forming fluorapatite, which is
more acid-resistant than hydroxyapatite. Recently, Nano Silver Fluoride was presented
as a new remineralizing agent. Aim: This study aimed to compare the remineralization
potential of three different fluoride varnishes Fluor Protector varnish (FP), Enamel Pro
varnish (EP), and Nano Silver Fluoride varnish (NSF) on the enamel of primary teeth.
Materials and Methods: 80 samples were gathered, and randomly distributed among
three groups: negative control group, demineralized group, and study group which was
subdivided into 3 subgroups, subgroup A: Fluor Protector, subgroup B: Enamel Pro
and subgroup C: Nano silver fluoride. Pepsi was used for 72 hours to demineralize
the Positive control group and the study group. Varnishes were then applied. All teeth
were subjected to pH cycle in a demineralization solution/artificial saliva for 10 days.
Vicker's microhardness test, Energy Dispersive X-ray Spectroscopy (EDX), and
Environmental Scanning Electron Microscope (ESM) were used to measure the extent
of enamel mineralization. The data were then, statistically evaluated. Results: Enamel
Pro showed the highest results followed by Fluor protector and Nano silver fluoride
however, there was no statistically significant difference between the three tested groups.
Conclusion: The study showed that the Enamel Pro had the highest values in
microhardness, EDX, and ESM, but there was no significant statistical difference between
the three groups. All the materials used proved their efficiency in remineralization of
the demineralized enamel.