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Study of the impact of the bleaching with 6% h2o2 solution on teeth wear
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Orientador(es)
Resumo(s)
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.
Descrição
Comunicação apresentada na International Conference BALTTRIB’2015, 26-27 novembro 2015, Kaunas, Lituania, 2015
Palavras-chave
Bleaching Hydrogen peroxide Dental wear