Fluoride retention by human enamel after in vitro application of nicomethanol hydrofluoride

Fluoridated dentifrices generally contain sodium monofluorophosphate or sodium fluoride--alone or in combination--or a group of organic fluorides, the amine fluorides. The purpose of this study was to determine the fluoride and retention in vitro by human enamel, after brushing with a dentifrice containing the amine fluoride, nicomethanol hydrofluoride, the fluoride salt of nicotinyl alcohol.