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Revista de Ciências Médicas e Biológicas
Article . 2009 . Peer-reviewed
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Lesões do esmalte dental relacionadas aos dentifrícios clareadores

Authors: Danilo Barral Araújo; Elisângela De Jesus Campos; Luciana Rodrigues Silva; Roberto Paulo Correia de Araújo;

Lesões do esmalte dental relacionadas aos dentifrícios clareadores

Abstract

Diversos estudos têm atribuído aos dentifrícios contendo agentes clareadores o surgimento de lesões na morfologia do esmalte. Contudo, não existe consenso entre os pesquisadores, quanto à relevância da severidade das lesões detectadas na superfície dental. Objetivo: o presente estudo visa a avaliar, in vitro, os efeitos do peróxido de hidrogênio, do peróxido de carbamida e do bicarbonato de sódio contidos na formulação de dentifrícios sobre o esmalte dental humano. Metodologia: realizado o escurecimento laboratorial, os pré-molares humanos que constituíram a amostra foram escovados com os dentifrícios contendo as duas substâncias clareadoras e o produto abrasivo, sendo determinadas, por espectrofotometria, as colorações dos espécimes, antes e após este procedimento. Através da microscopia eletrônica de varredura (MEV) foram obtidas imagens que analisadas, revelaram a natureza das lesões surgidas na superfície do esmalte. Resultados: a eficácia clareadora do peróxido de hidrogênio e de carbamida, e o efeito abrasivo do bicarbonato foram constatados, já que os corpos-de-prova tratados retornaram às suas colorações originais. Com base na MEV, a avaliação das superfícies do esmalte submetido aos produtos testados revelou o surgimento de diferentes tipos de lesões morfológicas de severidades distintas. Conclusão: os dentifrícios clareadores contendo peróxido de hidrogênio e peróxido de carbamida produzem lesões na superfície do esmalte, sendo que as seqüelas mais acentuadas estão relacionadas ao primeiro.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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