Sealants are made of a thin, tooth-colored acrylic and are painted on the surface of the tooth. Sealants are used to patch small grooves or holes on the teeth. They are highly effective in preventing decay on the biting surfaces of your chewing teeth.
This protective coating (made from plastic and other dental material) seals the grooves of your teeth, making it much more difficult for plaque to get stuck in those areas in the future. As a result, brushing your teeth becomes significantly more effective and your risk of cavities will drastically decrease.
Sealants are generally applied to children’s permanent back teeth, however, they can also be useful for adults in certain situations. Sealants usually last up to five years, though some adults still have their childhood sealants completely intact.