1. Aasenden R, DePaola PF and Brudevold F. Effects of daily rinsing with ingestion of fluoride solutions upon dental caries and enamel fluoride. Archs Oral Biol 1972;17:1705-1714. 2. Frankl SN, Fleisch S and Diodati RR. The topical anticariogenic effect of daily rinsing with an acidulated phosphate fluoride solution. JADA 1972;85:882-885.