Dental Sealants are a thin coating applied to the chewing surfaces of the back teeth. 
The material bonds to the tooth and fills in any grooves. This sealant acts as a barrier and protects the enamel from bacteria and acids common in the mouth.
Most cavities form in the grooves of the back teeth where the bacteria have a great place to hide. By placing a sealant, a barrier is created keeping the plaque and food out of these deep grooves decreasing the risk of decay. It is important to have the adult molars sealed as soon as they erupt.
Sealants are quick and easy to place. They hold up well with normal chewing and usually last for several years.