Magalhaes, A. C.Rios, D.Delbem, Alberto Carlos Botazzo [UNESP]Buzalaf, M. A. R.Machado, M. A. A. M.2014-05-202014-05-202007-01-01Caries Research. Basel: Karger, v. 41, n. 1, p. 77-79, 2007.0008-6568http://hdl.handle.net/11449/37418This in situ/ex vivo study assessed the effect of fluoride dentifrice on eroded enamel subjected to brushing abrasion. In a crossover study performed in 2 phases, 10 volunteers wore acrylic palatal appliances, each containing 3 human enamel blocks. Dentifrice was used to brush the volunteers' teeth and the specimens subjected to abrasion. In phases A and B the dentifrices used had the same formulation, except for the absence or presence of fluoride, respectively. The blocks were subjected to erosion by immersion of the appliances in a cola drink for 5 min, 4 times a day. Then the blocks were brushed, and the appliance was replaced into the mouth. Enamel alterations were determined using profilometry and percentage change in surface microhardness (%SMHC) tests. The data were tested using the paired t test. The mean wear values (+/- SD, mu m) were: group A 6.84 +/- 1.72 and group B 5.38 +/- 1.21 (p = 0.04). The mean %SMHC values (+/- SD) were: group A 54.6 +/- 16.2 and group B 45.7 +/- 6.8 (p = 0.04). Fluoride dentifrice had a protective effect on eroded enamel subjected to brushing abrasion. Copyright (c) 2007 S. Karger AG, Basel.77-79engerosionfluoridesoft drinkstooth brushing abrasionArtigo10.1159/000096110WOS:000242847100012Acesso restrito0000-0002-8159-4853