Petty officer 2nd class Patrick Krebs demonstrates proper teeth brushing while Lt. Michelle Romeo teaches a class to students at Graham A. Barden Elementary School in Havelock, N.C., as part of National Children's Dental Health Month, Feb. 12, 2015. Krebs is a dental technician and native of Dallas and Romeo is a dentist and a native of Charleston, W. Va., both with the Naval Health Clinic in Cherry Point.