A dental sealant is a thin, plastic coating that is applied to the chewing surfaces of teeth, usually the back teeth, to prevent tooth decay. Sealants protect the grooves and depressions of the teeth from food particles and plaque that cannot be removed by brushing and flossing alone. The application of sealants is a quick, easy, and painless process that can be done by a dentist or dental hygienist. The steps involved in applying sealants include:

• Cleaning the tooth or teeth to be sealed
• Applying a gel to the chewing surface for a few seconds
• Rinsing and drying the tooth
• Applying a solution to slightly roughen or "etch" the surface of the tooth
• Rinsing and drying the tooth again
• Painting the sealant material onto the tooth in liquid form
• Hardening the sealant material with a special curing light

Sealants are recommended for children and teenagers, especially when their permanent molars and premolars come in, as they are more prone to developing decay in the grooves and depressions of these teeth. However, adults without decay or fillings in their molars can also benefit from sealants. Sealed teeth require the same dental hygiene as unsealed teeth, including regular brushing and flossing, and professional cleanings. Dental sealants are a simple and effective way to prevent cavities and maintain good oral health.