Whitening Efficacy and Enamel Mineralization Effects of Hydrogen Peroxide-Based and Peroxide-Free Whitening Products

1.Background/Objectives: Tooth discoloration can negatively impact self-esteem and social interactions, driving the demand for effective and safe whitening treatments. Whitening agents vary in composition, with hydrogen peroxide-based products being widely used for their strong bleaching effect, while peroxide-free alternatives incorporating remineralizing agents aim to balance whitening efficacy with enamel preservation. 2.Methods: This study evaluated the whitening performance and impact on enamel mineralization of Crest 3D White Professional Effects, a hydrogen peroxide-based product, and My White Secret, a peroxide-free alternative containing hydroxyapatite. Sixty extracted human teeth were divided into two equal groups and subjected to whitening treatments according to the manufacturers’ protocols. Color and enamel mineralization were assessed using the VITA Classical Shade Guide and the DIAGNOdent Pen before and after each whitening session. 3. Results: My White Secret demonstrated a rapid initial whitening effect while maintaining enamel mineralization, whereas Crest 3D White exhibited a delayed but more pronounced whitening outcome, raising concerns regarding potential demineralization. Whitening response variability suggests that factors such as enamel structure and baseline mineralization influence treatment outcomes. 4.Conclusion: These findings emphasize the significance of formulation differences in whitening treatments, as hydrogen peroxide may impact enamel integrity, while hydroxyapatite-based alternatives provide a more balanced approach by by combining whitening efficacy with remineralization benefits. Selecting a whitening treatment should consider both aesthetic outcomes and enamel health.