Spectroscopic analysis and interaction of different bleaching agents with 660n laser and 470 nm LED
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2004
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Brazilian Dental Journal
Resumo
The aim of this in vitro study was to verify the effect of different
dental bleaching methods regarding the achromatic enamel color
change. Forty-five bovine teeth were immersed in a darkening
solution and then divided into nine experimental groups with five
samples in each group. The color measurement was initially
taken using a digital colorimeter. The teeth were submitted to the
bleaching with three bleaching gels, without any activation
source (control) and with two wavelengths (660 nm diode laser
and 470 nm LED). The previous analysis of the absorption spectra
enabled the choice of an adequate wavelength in order to
enhance its photochemical action. The second color measurement
was taken after all the treatments. The data were submitted to
ANOVA and Tukey parametric statistical tests (p=0,05). It was
observed that: 1) there was a statistical significant difference
between the activation sources; 2) there was statistical significant
difference regarding the interaction among the activation sources
and the bleaching gels when compared with each other. The activation
methods of the bleaching agents, even promoting color
changes in distinct levels, still require further studies capable of
detecting a higher absorption spectrum of a product and which
presents significant clinical results.
Como referenciar
ARCHILLA, J.R.F.; TANNOUS, J.T.; PELINO, J.E.P.; FREITAS, P.M.; SILVA, D.F.T.; RIBEIRO, M.S. Spectroscopic analysis and interaction of different bleaching agents with 660n laser and 470 nm LED. Brazilian Dental Journal, v. 15, p. 100-100, 2004. Special issue. Disponível em: http://repositorio.ipen.br/handle/123456789/32760. Acesso em: 28 Mar 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.