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|Type:||Artigo de periódico|
|Title:||Fluoride Release From Caf2 And Enamel Demineralization|
Del Bel Cury A.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.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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