The Chester County Health Department works with community dental providers and local schools to coordinate school-based dental sealant programs for children ages 6-8 and 12-4 in Chester County. For fiscal year 2014/2015, the Dental Sealant Program applied 2,200 sealants for 361 children in Chester County.
Dental sealants are thin protective coatings that are applied to the chewing surfaces of the premolars, first and second permanent molars to prevent decay. Most tooth decay in children and teenagers occurs on the chewing surfaces where pits and grooves tend to trap food and bacteria. Sealants fill in these pits and grooves so that bacteria cannot multiply and cause cavities.