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  • Title: Effect of rinsing with water immediately after neutral gel and foam fluoride topical application on enamel remineralization: An in situ study.
    Author: Delbem AC, Danelon M, Sassaki KT, Vieira AE, Takeshita EM, Brighenti FL, Rodrigues E.
    Journal: Arch Oral Biol; 2010 Nov; 55(11):913-8. PubMed ID: 20813349.
    Abstract:
    OBJECTIVE: The aim of this study was to evaluate, in situ, the effect of rinsing with water immediately after neutral fluoride foam application (Foam) or fluoride gel application (Gel). DESIGN: Ten volunteers wore acrylic palatal appliances containing 4 enamel blocks selected by surface hardness with artificial caries. Five experimental regimes of 3 days each were set according to treatment: placebo; Gel and Foam followed by no rinsing or consuming of liquids or solids for the next 30min; Gel and Foam followed by immediately washing with water jet. After each phase, surface hardness was again measured for analysis of mineral gain, evaluated through percentage of surface hardness recovery (%SHR) and integrated loss of subsurface hardness (ΔKHN). The concentration of loosely bound fluoride (CaF2) and firmly bound fluoride (FA-like) formed and retained were also determined. RESULTS: Fluoride treatments produced greater remineralization (%SHR and ΔKHN) compared to placebo group (p<0.05). There was no difference in the ability to promote remineralization and in the concentration of fluoride formed and retained, in each analysis, between Gel and Foam (p>0.05). CONCLUSION: The data suggest that rinsing with water immediately after topical application does not seem to have an influence on the ability of fluoride to promote remineralization.
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