Aviano Dental Clinic
Senior Airman Nathanael Merrill, 31st Dental Squadron dental technician, polishes a gold crown April 14 at the dental clinic. A crown is a type of dental restoration, which completely caps or encircles a tooth or dental implant, and is typically bonded to the tooth using dental cement. (U.S. Air Force photo/Senior Airman Tabitha M. Mans)