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Study of the impact of the bleaching with 6% h2o2 solution on teeth wear

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Resumo:Objectives: This study aims to evaluate the effect of a 6% hydrogen peroxide (H2O2) solution, activated with UV-light, in colour, wear, microhardness and roughness of enamel surface. Methods: Five teeth were cut, polished and exposed to black tea solution to confer them a dark color. The specimens were tested before and after bleaching using a spectrophotometer colour equipment, a nanotribometer, a micro durometer and a SEM. Results: On comparing with untreated, the treated enamel surface showed an improvement of colour but a reduction of microhardness and an increase of roughness and wear. Conclusions: A 6% hydrogen peroxide solution, activated with UV-light, has capacity to induce alterations in enamel surface making it less hard and more susceptible to wear.
Autores principais:Rodrigues, F.
Outros Autores:Serro, A. P.; Figueiredo-Pina, Célio
Assunto:Bleaching Hydrogen peroxide Dental wear
Ano:2015
País:Portugal
Tipo de documento:documento de conferência
Tipo de acesso:acesso aberto
Instituição associada:Instituto Politécnico de Setúbal
Idioma:inglês
Origem:Instituto Politécnico de Setúbal

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