The control of phosphate ion release from ion permeable microcapsules formulated into rosin varnish and resin glaze.

Objectives: The occurrence of recurrent caries at the interface of dental materials and the enamel surface is an important performance issue. The objective of this study was to investigate the most effective way to control the release rate of bioavailable phosphate ions contained in aqueous solutions within ion permeable microcapsules formulated into rosin based varnishes and resin based sealants, in order to promote remineralization.

Methods: Microcapsules that contained aqueous solutions of K2HPO4 with concentrations from 0.