Anticaries Agent Based on Silver Nanoparticles and Fluoride: Characterization and Biological and Remineralizing Effects—An In Vitro Study

Figure 5

Representative scanning electron micrographs of the enamel surface morphology. The arrows indicate the presence of precipitates; (a) intact enamel—IE: is observed a smooth surface due to sequential polishing; (b) demineralized enamel—DE: disorganized enamel surface is observed; (c) silver diamine fluoride—SDF: presence of a layer with agglomerated precipitates (arrow) and heterogeneous on demineralized enamel surface treated with SDF; (d) fluoride—F: can be observed a disorganized enamel surface; (e) silver—Ag: scattered areas of enamel precipitates (arrow); (f) silver nanoparticles and fluoride—AgF: presence of a layer with precipitates (arrow) agglomerated and heterogeneous on the surface of decayed enamel treated with AgF.

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