Fluoride is a safe and effective way to prevent tooth decay. Fluoride is obtained from a variety of sources, including fluoride toothpaste, fluoride varnish, and fluoride supplements.

Fluoride supplements are recommended for children ages 6 months to 16 years who are determined to be at high risk for dental caries (tooth decay). Unlike dietary supplements, fluoride supplements can't be purchased over the counter. Fluoride supplements require a prescription from a dentist, physician, or nurse practitioner. Fluoride supplements come in tablets, drops, or lozenges. Parents should give the supplement to the child each day for it to work best to prevent tooth decay.

This Brush Up on Oral Health tip sheet provides information about fluoride supplements and the role of Head Start staff in promoting them.

Determining a Child's Need for Fluoride Supplements

The dentist, physician, or nurse practitioner will consider all sources of fluoride that a child receives (e.g., from toothpaste, varnish, or multi-vitamin containing fluoride) to determine if the child needs a supplement.

Role of Head Start Staff in Promoting Fluoride Supplements

If a child's dentist, physician, or nurse practitioner prescribes fluoride supplements, Head Start staff should note this information in the child's health record. 

Head Start staff should check in with parents from time to time to see how things are going and help address any problems, as needed. Some common problems include getting the prescription filled; getting the child to take the supplement daily; or asking for a prescription refill.

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Last Updated: September 30, 2025