In vitro interactions between the surfaces of enamel white spots and calcifying solutions.

The treatment of white spot enamel lesions with a saturated DCPD solution followed by a high fluoride topical application appeared to produce a surface coating consisting mainly of spherical particles that filled in the honeycombed-etched surface of the untreated enamel white spot. The conditions used in these pilot studies were not ideal to take advantage of the DCPD and fluoride reaction to form FAP. Additional study is warranted on the solution composition and application time along with identification of the reaction products formed.