What is silver diamine fluoride?
Silver diamine fluoride (SDF) is a liquid substance used to help prevent tooth cavities (or caries) from forming, growing, or spreading to other teeth.
SDF is made of:
- Silver: helps kill bacteria
- Water: provides a liquid base for the mixture
- Fluoride: helps your teeth rebuild the materials they’re made of (known as remineralization)
- Ammonia: helps the solution remain concentrated so that it’s maximally effective against cavity resonance
SDF was approved by the U.S. Food and Drug Administration (FDA) in 2014 for use in the United States.
It’s sold in some stores for home use, but it’s most commonly and safely used in dental clinics.