FLUORIDE MOUTHRINSES AND FLUORIDE VARNISHES

The cariostatic efficacy of rinsing with a 0.05-0.2% neutral sodium fl uoride solution has been clearly demonstrated, especially in supervise d school-based programmes in moderate and high caries risk children. T he cost-benefit effect, however, is questionable in populations with l ow caries prevalence, and fluoride rinsing programmes are gradually be ing replaced by more individual fluoride therapy comprising combinatio ns of fluoride toothpastes, tablets, or varnishes. Fluoride varnishes were developed as individual alternatives to conventional topical fluo ride application and are today gaining acceptance for clinical applica tion. Two varnishes, Duraphat(R) containing 5%wt NaF and Fluor Protect or(R) with 0.9% wt fluor silane, are available commercially. The clini cal effects seem to depend mainly on application frequency, especially in high caries risk groups. The cost-benefit effect is high, but can be increased by delegating application to auxiliary personnel in conju nction with regular dental visits. Toxicologically both fluoride mouth rinses and fluoride varnishes are safe if used as directed.