What does “Pit-and-fissure sealant” mean?
A pit-and-fissure sealant is a preventive treatment that fills narrow, deep grooves, mainly on the chewing surfaces of back teeth, to make it harder for food and plaque to collect. It is used to prevent decay in these grooves and to arrest early decay that has not formed a cavity.
Protecting grooves that toothbrush bristles struggle to reach
Pits and fissures on back teeth include narrow areas that toothbrush bristles may not adequately reach. Material flowing into and setting in these grooves creates a physical barrier. It does not cover every tooth surface, so cleaning between teeth and along the gumline remains necessary.
Early decay without a cavity may also be suitable
On primary and permanent molars in children and adolescents, sealants can both prevent decay and arrest early decay on chewing surfaces that have not developed a cavity. If a cavity is already present or deeper damage is suspected, the treatment needed is assessed rather than applying the same approach to every lesion.
Continue cleaning and regular checks after placement
The tooth surface is prepared, material is placed in the grooves and allowed to set. Continue brushing with fluoride toothpaste and having the teeth checked at regular examinations. Understand which surfaces are covered and the remaining decay risk; ask the dentist to check a sealant that appears damaged or lost.
Frequently Asked Questions
Will a sealant prevent all future decay?
It does not completely prevent decay on every tooth surface. It protects the grooves, while brushing, interdental cleaning and regular checks remain necessary.
Does early decay mean a sealant cannot be used?
Not necessarily. A sealant can help arrest early decay on a chewing surface without a cavity, but surface damage and lesion depth must be assessed first.
Questions about sealants
Learn what the term means and how it relates to your dental condition.
- Sufficient understanding
Is this groove suitable for prevention, or does it need a separate filling?
Explanation and evidenceClarify the purpose of treatment based on whether a cavity is present and the extent of decay.
American Dental Association · Dental sealants - Care after treatment
What cleaning and examinations should continue after placement?
Explanation and evidencePlan care for surfaces outside the grooves and regular checks of the tooth and sealant.
National Institute of Dental and Craniofacial Research · Dental sealants
