Como lidar com Sensibilidade e Erosão dos Dentes
publicado em 24/04/2020
Robert V. Faller
Komberg School of Dentistry, Temple University, Filadélfi a, PA, EUA
Ao mesmo tempo que a introdução de fluoreto expandiu muito a expectativa de vida dos dentes naturais, houve o surgimento de dois problemas orais: a sensibilidade e a erosão dentária. Este artigo descreve abordagens desses problemas e discute o desafio de, simultaneamente, manter a eficácia do fluoreto em formulações de dentifrícios com múltiplos benefícios.
While the introduction of fluoride remarkably increased the life expectancy of natural teeth, two oral care problems have since emerged: tooth sensitivity and dental erosion. This article describes approaches to these problems and discusses the challenge of simultaneously maintaining fluoride efficacy in multi-benefit toothpaste formulation.
Si bien la introducción de flúor aumentó notablemente la expectativa de vida de los dientes naturales, dos problemas de higiene bucal han surgido entonces: la sensibilidade y la erosión dental. En este artículo se describe los criterios para estos problemas y se analiza el reto de mantener al mismo tiempo la eficacia de fluoruro en formulaciones de pasta de dientes multi-beneficio.
Sensibilidade Dentária
Abordagens Tecnológicas
Erosão Dentária
Abordagens Técnicas
Discussão
Assegurando o Sucesso da Formulação
Conclusões
A pesquisa principal do final da década de 1950 continua influindo no desenvolvimento da tecnologia dos tratamentos orais até os dias de hoje. Naquela época, pesquisadores da Universidade de Indiana, nos Estados Unidos, demonstraram com sucesso que o fluoreto incorporado aos cremes dentais (e dentifrícios, em geral) poderia representar um benefício anticárie. O primeiro creme dental a comprovar clinicamente efetividade anticárie, da marca Crest, era um produto formulado com fluoreto estanhoso (SnF2) em um sistema abrasivo apenas parcialmente compatível com o fluoreto ativo. Anteriormente, os cremes dentais combinavam fluoreto de sódio iônico, altamente reativo, com abrasivos à base de cálcio, como o carbonato de cálcio. O agente anticárie ativo, o íon F-, reagia com o cálcio livre dessas formulações, formando fluoreto de cálcio insolúvel, que produzia produtos clinicamente ineficazes.1,2
No início da década de 1960, cremes dentais formulados com outros fluoretos ativos, monofluorfosfato de sódio (SMFP) e fluoreto de amina, comprovaram ser clinicamente efetivos. O SMFP, uma forma de fluoreto com ligação covalente, pode ser formulado com abrasivos de cálcio, pois sua reatividade é reduzida na formulação. Para proporcionar benefício anticárie, o
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