A dental sealant is a protective plastic coating that covers the pits and fissures on the chewing surface of susceptible teeth to create a smooth surface. This helps to prevent tooth decay because food and bacteria can no longer become lodged in the now smooth surface. The smooth surface created by the sealant provides a surface that is easier to clean and accessible to toothbrush bristles, toothpaste and saliva.

Dental sealants are mainly used in children who are at higher risk of tooth decay, and typically they are placed as soon as the adult molar teeth come through. However, sealants can be placed at any age for people at risk of dental decay.

Combined with a regular habit of brushing twice daily with a fluoride toothpaste, sealants can help prevent cavities.

This article is intended to promote understanding of and knowledge about general oral health topics. It is not intended to be a substitute for professional advice, diagnosis or treatment. Always seek the advice of your dentist or other qualified healthcare provider with any questions you may have regarding a medical condition or treatment.