Preventative. Sealants are one of the top three preventative measures taken in pediatric dentistry. First is good home care. Second, is regular visits to the dentist to detect problems early. The third is sealants. Sealants close the deep grooves and pits in teeth that trap food and bacteria. Teeth are much easier for children to keep clean. I recommend sealants on all molars and premolars for every child.
Peace of mind. Sealants protect the chewing surfaces of teeth from cavities. This is where most kids get cavities.