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