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Fluoride varnish
Also called: varnish, 5% sodium fluoride varnish
A sticky fluoride coating painted on teeth to prevent decay.
Fluoride varnish is 5% sodium fluoride (22,600 ppm fluoride) in a sticky base that is painted on teeth. It sets when it touches saliva, so teeth do not need to be perfectly dry, and very little is swallowed, which makes it a good choice for young children. Patients at higher risk get it every 3 to 6 months.
How to spot it
- Single-dose packets or tubes with a small brush; the varnish is yellowish or tooth-colored.
What it is used for
- Paint a thin layer on all tooth surfaces; give the patient post-care instructions (soft foods, no brushing for several hours as the office directs).
Safety and care
- Use single-dose units, one per patient.
Related
Sources: ADA Oral Health Topics. Fluoride: Topical and Systemic Supplements, Boyd LD, Mallonee LF, Wyche CJ. Wilkins' Clinical Practice of the Dental Hygienist, 14th ed. Jones & Bartlett, 2024