U.S. Air Force Tech. Sgt. David Tucker, 7th Aerospace Medicine Squadron dental technician, creates a patient’s dental mold at Dyess Air Force Base, Texas, Nov. 29, 2017. A molding of the patient’s teeth is needed, so that a dentist can look at that particular mold and see whether a filling, crown or other procedure needs to be done. (U.S. Air Force photo by Airman 1st Class April McAnally)