Ferguson Elementary School second-graders get a free dental exam and sealant service from Family First Health professionals at the school Tuesday, March 5, 2013. Second-graders at six city elementary schools will receive the check-ups over the next two months through a program by the York City Bureau of Health. Sealant is applied to the newly sprouted molars of children as a preventative measure to protect the chewing surfaces. Bill Kalina photo bkalina@yorkdispatch.com