Fluoride-containing varnish for application to the tooth surface, which contains 25-87.5 wt. % organic solvent, 2-50 wt. % water, 5-50 wt. % water-insoluble film-forming agent, optionally 5-25 wt. % plasticizer, 0.5-10 wt. % inorganic fluoride source in dissolved form, in each case relative to the total weight of the varnish. The varnish is suitable in particular for use in the treatment of hypersensitive teeth and/or tooth necks, in the prophylaxis of caries, in the treatment of incipient caries lesions, the inhibition of demineralization and/or tooth erosion.
