Children are more prone to cavities because of the shape of their teeth. At around 6 years old, their first molars begin to come in. These molars have deep pits and fissures on the chewing surfaces. These are so narrow that the bristles of a toothbrush cannot clean them adequately, and these crevices are the perfect environment for bacteria to grow. The children’s eating habits lead to cavities because of frequent snacking, inadequate brushing technique or not brushing as often as necessary. Dental sealants can protect these teeth from cavities. Sealants are applied to the chewing surfaces and act as a barrier between the tooth and bacteria.