Tech. Sgt. Raymond Worl, 436th Aerospace Medicine Squadron NCO in-charge of dental laboratory, helps Kristin Dixon, a dental hygienist student from the Delaware Technical and Community College, as she pours an impression to make a stone model of teeth. Delaware Technical students come to Dover Air Force Base monthly to accomplish on-the-job training with Sergeant Worl where the students learn how to fabricate sports guards, fluoride and bleaching trays. (U.S. Air Force photo/ Airman 1st Class Shen-Chia Chu)