Buzalaf, M. A. R.Vilhena, F. V.Iano, F. G.Grizzo, L.Pessan, Juliano Pelim [UNESP]Sampaio, F. C.Oliveira, R. C.2013-09-302014-05-202013-09-302014-05-202009-01-01Caries Research. Basel: Karger, v. 43, n. 2, p. 142-146, 2009.0008-4166http://hdl.handle.net/11449/15503To evaluate the influence of dentifrice pH and fluoride (F) concentration on F uptake by plaque and nails, two sets of 5-to 6-year-old children were randomly allocated into four groups, according to the type of dentifrice they had been using for 1 year: (1) experimental liquid dentifrice (ELD), 1,100 ppm F, pH 7.0; (2) ELD, 1,100 ppm F, pH 4.5; (3) ELD, 550 ppm F, pH 4.5, and (4) commercial toothpaste, 1,100 ppm F, pH 7.0. In one set of children, nails were clipped. In the second, plaque samples were collected 1 h after the last use of dentifrice. F concentration in plaque and nails was analyzed. Plaque F concentration was significantly lower in group 4 than in groups 1-3. Nail F concentration was significantly higher in group 4, and significantly lower in group 3, than in group 1 or 2. Plaque F uptake was influenced significantly by dentifrice consistency and nonsignificantly by pH and F concentration. Reduction of dentifrice pH did not affect nail F concentration. Copyright (C) 2009 S. Karger AG, Basel142-146engDentifricesFluorideNailsPlaqueArtigo10.1159/000211717WOS:000265123400010Acesso restrito