The main difference is that SDF is used to stop tooth decay that’s already started (usually, the term “arrest” is used). Dental sealants are routinely used to prevent cavities from forming ...

Gianna Marie Natoli, 13, Norwich City School District (USA): I suggest adding something that makes a little water come out ...

This chemical is present in dental products like toothpaste, protecting teeth from cavities and preventing bacteria in the mouth. It is also added to public water supplies, with research showing ...