T in Vitro Comparison of the Cariostatic Effect between Topical Application of Fluoride Gels and Fluoride Toothpaste Comparação in Vitro Do Efeito Cariostático Entre a Aplicação Tópica De Flúor E Dentifrício Fluoretado
نویسندگان
چکیده
RESUMO O objetivo do presente estudo foi comparar in vitro o efeito da aplicação tópica de flúor na forma de gel acidulado (FFA) ou neutro (FFN) com um dentifrício fluoretado (MFP), na incorporação e ação anticariogênica do flúor. Foram utilizados 125 blocos obtidos de esmalte humano, divididos em 5 grupos de acordo com o tratamento e submetidos à ciclagem de pH durante dez dias. Analisou-se o flúor incorporado antes e depois da ciclagem de pH; a microdureza superficial (SMH) e a microdureza interna do esmalte (CSMH). Os resultados da concentração de flúor no esmalte após a ciclagem indicou uma maior quantidade de flúor incorporado para todos os grupos comparados ao grupo controle sadio. A microdureza superficial entre APF e MFP, assim como a porcentagem de alteração da microdureza superficial e a perda mineral não mostraram diferenças estatísticas. A porcentagem de volume mineral obtida a partir da microdureza em secção longitudinal demonstrou que o APF tem um padrão melhor na formação da cárie subsuperficial. Os resultados sugerem que o uso de géis acidulados ou a freqüente aplicação de flúor em baixa concentração são medidas eficazes para o controle da cárie dental. UNITERMOS: Cárie dentária, prevenção & controle; Flúor.
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