Journal of Dental Research, Vol 59, 1392-1397, Copyright © 1980 by International & American Associations for Dental Research Online Journals
Fluoride prolonged release preparations for topical use
M. Friedman
A new delayed F-released preparation for topical use was developed. The
sustained F-release was achieved by embedding NaF in ethyl cellulose and
silicone polymer, both known to be nontoxic and insoluble in saliva.
Chewing gum and orthodontic plates were used as delivery systems. The
release of F from these preparations was found to be controlled by a
diffusion mechanism and dependent on solubility, concentration of F, and
effective surface area. The availability of a prolonged release of F, at a
level between 0.06--0.5 mg/d has been demonstrated.