Examinando por Materia "Enamel whitening"

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    Erosive Effect of Two Over-the-Counter Home Whitening Products on the market on enamel microhardness, In Vitro study
    (Universidad Privada Norbert Wiener, 2023-05-22) Briceño Oliveros, Crystel Milena; Vilchez Bellido, Dina
    Objective: To evaluate the erosive effect of two over-the-counter home whitening products on enamel microhardness in vitro. Material and Method: The study was experimental, using 40 bovine teeth, divided into four groups according to the whitening product used: 20 MINUTES DENTAL WHITE, DAZZLING WHITE, POLA LUMINATE SDI (6% hydrogen peroxide, positive control), and saline solution (negative control). Enamel microhardness was assessed in vitro using the Vickers test before exposure, at 24 hours, and at 7 days. Results: There was a greater reduction in enamel microhardness after the application of the whitening products, with the greatest effect at 7 days observed with the 20 MINUTES DENTAL WHITE product (from 319.94 to 282.48 Kg/mm²), followed by DAZZLING WHITE (from 332.74 to 300.02 Kg/mm²) and POLA LUMINATE SDI (from 325.31 to 301.34 Kg/mm²), with statistically significant differences between before and after exposure to the products (p<0.05). Conclusions: There was an erosive effect of the home whitening products on enamel microhardness in vitro, which increased with the exposure time.