Fissure sealants, also known as dental sealants, are thin, plastic coatings that are applied to the chewing surfaces of the back teeth, which are the molars and premolars. The sealants are designed to fill in the deep grooves and crevices on the chewing surfaces of these teeth, which can be difficult to clean with a toothbrush, and are therefore more susceptible to decay and cavities.

Fissure sealants are a quick and painless way to protect teeth from decay and cavities, and can last for several years with proper care. They are typically recommended for children and teenagers, who are at higher risk of developing cavities on the chewing surfaces of their back teeth. However, adults may also benefit from sealants, particularly if they have deep grooves or fissures on their teeth that are difficult to clean with a toothbrush.

While fissure sealants are an effective way to prevent cavities, they do not replace good oral hygiene habits such as brushing and flossing regularly, and maintaining a healthy diet. It is still important to visit the dentist regularly for check-ups and cleanings, and to address any dental issues promptly to prevent more significant problems from developing.