Dental sealants are a thin coating applied to the chewing surfaces of teeth, particularly the molars and premolars, to prevent cavities. This painless procedure can cost between $30 to $60 per tooth, though insurance or discount plans may reduce the cost. According to the CDC, sealants can prevent 80% of cavities for two years and continue to protect against 50% of cavities for up to four years. They can last up to nine years with proper care. Sealants are especially beneficial for children, as they can prevent lost school time due to tooth decay. However, they need to be monitored and maintained during regular dental visits. Some concerns include the potential presence of bisphenol A (BPA), though studies have shown that BPA levels return to baseline within 24 hours after application. Sealants may also need to be reapplied if they fall out or wear away. Despite these concerns, dental professionals agree that the benefits of sealants outweigh the risks. Sealants are also beneficial for adults, especially as the risk of decay increases with age. However, they are not suitable for teeth that already have restorations or implants. Overall, dental sealants are a safe and effective way to prevent cavities and maintain dental health.