Dental sealants are placed to help protect teeth from decay. Some teeth have very deep and narrow grooves, making it difficult from toothbrush bristles to remove plaque from these spaces. Because of this, these areas are very susceptible to decay, or cavities.
Sealants are typically placed on permanent molars in children, but sometimes recommended for adults as well. A dental sealant is a tooth-colored plastic resin that is bonded to the teeth to fill in deep grooves and pits, making it easier to keep the surface clean and prevent decay.
They typically last 3-5 years and will be checked at each hygiene appointment to make sure they are intact and do not need to be repaired or replaced.