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.
- Cotton or gauze is placed near the affected teeth to prevent saliva from moistening the teeth.
- Moisture is removed from the surface of the teeth using a vacuum suction tool.
- SDF is applied to the area affected by a cavity.
Your dentist may also use the following to mask the areas affected by cavities:
- glass ionomer
SDF is most commonly used on areas affected by cavities. Research shows that SDF can be just as helpful when used as a preventive measure by being applied to healthy tooth surfaces.