Abstract
Abstract—This study is to evaluate the control of fluoride releasing of four types of toothbrush with sodium fluoride (NaF) coated bristles. The in-vitro test was conducted using an electric powered toothbrush brushed against a ceramic tooth. The maximum measured fluoride release of coating group were at simulating day 1 (brush 2 times) and significant higher than other time periods. The diameter of the straight type bristles with 15% NaF coating and wavy type bristles with 10%, 15% NaF coating were significant reduced after 42 times brush. We conclude that a toothbrush with coating on surface modified bristles could control the fluoride releasing and act as a dental caries prophylactic device.
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