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.


    steps:

    1. Cotton or gauze is placed near the affected teeth to prevent saliva from moistening the teeth.
    2. Moisture is removed from the surface of the teeth using a vacuum suction tool.
    3. 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
    • opaquer
    • crowns

    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.


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