If and when the situation warrants it, we use preventative sealants on your child's teeth. Sealants are an inexpensive, protective coating which are placed on the top surfaces of teeth (in the grooves) to prevent tooth decay (cavities!) On average sealants will last on the teeth from 2-5 years.
Unprotected pits and grooves of tooth show cavities.
Cross section of tooth shows brush bristle can't reach deep into pits.