Dental sealants are thin, protective coatings applied to the chewing surfaces of the back teeth (molars). They function as a physical barrier by sealing off the deep pits and fissures where food particles and bacteria often hide. By creating a smooth surface over these irregular tooth grooves, sealants block the acids produced by plaque from eroding tooth enamel.
In children, sealants are particularly effective because they protect newly erupted permanent molars which are highly vulnerable to decay. According to the CDC, sealants can reduce the risk of cavities by up to 80% in the first two years after application and continue to provide 50% protection for up to four years. They are typically applied around ages 6 and 12, immediately after the first and second permanent molars emerge. This preventive measure is non-invasive, painless, and helps families avoid more complex and costly restorative procedures, such as fillings, in the future.
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