Sealants are a durable, strong plastic coating placed on the surface of teeth to prevent decay. They are specifically set on the chewing surfaces of molars and premolars - the permanent back teeth - typically when the tooth has come in and has completely passed the gum. Chewing surfaces are sealed as each of the teeth break through the gum line so that the tooth is protected from cavities.
Sealants are used in conjunction with fluoride to add extra protection for the naturally uneven surfaces of the back teeth. Sealants come in clear, white, or can be tinted to match the patient's tooth surface. Once placed, they are virtually invisible and protect teeth for many years.