Analysis of Tooth Surface Changes after Treatment with Silver Fluoride Using Energy-Dispersive Electromagnetic Radiation Spectroscopy

This study sought to examine tooth surface changes and remineralization after treatment with 38 % waterbased silver fluoride (AgF) solution and potassium iodide (KI), which are known to have teeth-remineralization effects. Tooth samples were prepared by exposing enamel and dentin. Riva Star Aqua (SDI, Bayswater, Australia), consist of AgF and KI ,was applied to tooth surfaces, after treatment, stored in artificial saliva for 7 or 14 days. Using scanning electron microscopy, changes in tooth surface shape and remineralization were assessed. Our analysis revealed that upon treatment with AgF for 7 or 14 days, the dentin surface appeared very smooth, indicating remineralization. Analysis of the levels of calcium (Ca), phosphorous (P), and argentum (Ag) using electromagnetic radiation spectroscopy revealed changes in the levels of Ca and P in the enamel and that after 14 days, there were significant changes in the levels of Ag in dentin. These findings indicate that the agent applied using AgF and KI led to teeth remineralization, highlighting them as effective remineralization materials.