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Type: Artigo de periódico
Title: Fluoride Release From Caf2 And Enamel Demineralization
Author: Tenuta L.M.A.
Cerezetti R.V.
Del Bel Cury A.A.
Tabchoury C.P.M.
Cury J.A.
Abstract: The anticarics effect of professional fluoride (F) application has been attributed to calcium-fluoridee-like deposits (CaF2) formed on enamel, but this has not been clearly demonstrated. We hypothesized that CaF2 formed on plaque-free enamel by F application would reduce enamel demineralization due to the increase of F aYailabiiity in fluid of subsequently formed plaque. We created distinct levels of CaF2 on enamel to evaluate a dose-response effect. Enamel blocks were mounted in contact with a S. mutans test plaque and used in situ by 10 volunteers. F released to the fluid phase of this substrate ("plaque fluid") was measured before a cariogenie challenge. "Plaque fluid" F concentration was highly correlated to the enamel CaF2 concentration (r = 0.96, p < 0.001) and to consequent enamel demineralization (r = -0.75, p < 0.001). The results suggest that F released to plaque fluid from CaF2 formed on enamel may play a significant role in the anticaries effect of professionally applied F agents.
Rights: fechado
Identifier DOI: 10.1177/154405910808701105
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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