Resumo

AYRES, Ana Paula Almeida; BERGER, Sandrine Bittencourt; CARVALHO, Adriana Oliveira  e  GIANNINI, Marcelo. Effects of hydrogen peroxide on dental permeability. Rev. Bras. Odontol. [online]. 2016, vol.73, n.2, pp. 96-100. ISSN 1984-3747.

Objective: This study evaluated the effect of four bleaching agents on the dental permeability. Material and Methods: Bovine teeth were divided into four groups (n=10), and the initial dental permeability was measured before the bleaching treatments, using a dental hydraulic permeability device. Afterwards, teeth were bleached with whitening products, and the final permeability was recorded. The results were expressed in percentage of increasing permeability (%) and data were submitted to ANOVA and Tukey's test. Results: Whiteness HP Maxx produced higher dental permeability (145.7±76.3) than Whiteness HP Blue (57.5±36.1) and Pola Office Plus (72.7±19.5), which did not differ from Opalescence Boost PF (101.4±46.3). Conclusion: All bleaching agents increased the dental permeability. The increasing intensity was product-dependent.

Palavras-chave : hydrogen peroxide; permeability; dental bleaching..