(a) The Department shall establish and administer a dental health program for the delivery of preventive, educational and dental care services to preschool children, school-age children, and adults. The program shall include, but not be limited to, providing teacher training, adult and child education, consultation, screening and referral, technical assistance, community coordination, field research and direct patient care. The primary emphasis of the program shall be the delivery of preventive, educational, and dental care services to preschool children and school-age children.