Sealants and Fluoride

What are dental sealants?

Sealants are made from tooth-colored acrylic and applied on the surface of the molars and premolars to prevent cavities. The grooves on the surfaces of these teeth can house thousands of microbes though they seem just as wide as a small crack. Minute food particles and other debris may also get accumulated in them, thereby driving up the chances of getting cavities. The sealants prevent this by completely sealing off the grooves to the microbes and food particles in the mouth.

How is fluoride treatment carried out?