What are the properties of Duraflor, a new cavity varnish?

Duraflor (MEDICOM, Inc.) is a 5% (50 mg/ml) bubble-gum flavored sodium fluoride varnish that can be used for dental sensitivity and caries prevention. It comes in 10-ml multi-dose, 0.4-ml unit-dose, and 0.25-ml unit-dose packaging. The unit-dose packaging comes with a brush and patient instructions. The varnish is a slightly yellow color, but the color disappears within 24 hours of application. It is excellent for children who cannot tolerate fluoride trays and for post-bleaching and post-restorative hypersensitivity. It can also be used to treat sensitivity due to root exposure.