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Rennou™ Varnish is indicated for the relief of tooth hypersensitivity through the mechanical occlusion of dentinal tubules.

Rennou™ Varnish is a cavity varnish intended for professional use as a topical application on prepared tooth surfaces. This fluoride-free varnish creates a rosin-based film that prevents penetration of restorative material into the dentinal tissue and provides relief of tooth hypersensitivity by occluding open dentinal tubules. Unit-dose varnish and applicator are packaged together in individual thin, sealed trays. Rennou™ Varnish is only applied by a professional clinician. Rennou™ Varnish is a topically applied flavored (Spearmint, etc.) compound comprised of natural rosin, ethanol, xylitol, and Rennou™ (a combination of theobromine, calcium acetate, and sodium hydrogen phosphate). The major components are rosin and ethanol, which, when delivered together, efficiently promote a fast-drying film on the tooth surface. The varnish is sweetened with xylitol.