U.S. Air Force Senior Airman Justin Rhodes, 20th Dental Squadron dental lab technician, polishes a gold crown for a patient at Shaw Air Force Base, S.C., May 15, 2012. Rhodes is a native of Owensboro, Ky.(U.S. Air Force photo by Airman Nicole Sikorski/Released)

U.S. Air Force Senior Airman Justin Rhodes, 20th Dental Squadron dental lab technician, polishes a gold crown at Shaw Air Force Base, S.C., May 15, 2012. Rhodes is a native of Owensboro, Ky.(U.S. Air Force photo by Airman Nicole Sikorski/Released)

U.S. Air Force Senior Airman Justin Rhodes and Airman 1st Class Collin Casey, both dental lab technicians assigned to the 20th Dental Squadron, inspect an unsealed crown at Shaw Air Force Base, S.C., May 15, 2012.(U.S. Air Force photo by Airman Nicole Sikorski/Released)

U.S. Air Force Senior Airman Justin Rhodes, 20th Dental Squadron dental lab technician, prepares a dental study model at Shaw Air Force Base, S.C., May 15, 2012. Rhodes is a native of Owensboro, Ky.(U.S. Air Force photo by Airman Nicole Sikorski/Released)

U.S. Air Force Senior Airman Justin Rhodes, 20th Dental Squadron dental lab technician, chooses a shade of porcelain to match a patient's teeth at Shaw Air Force Base, S.C., May 15, 2012. (U.S. Air Force photo by Airman Nicole Sikorski/Released)

U.S. Air Force Capt. Christopher Wolbert, 20th Dental Squadron dentist, oversees the progress on the construction of a gold crown for his patient at Shaw Air Force Base, S.C., May 15, 2012.(U.S. Air Force photo by Airman Nicole Sikorski/Released)

U.S. Air Force Airman 1st Class Collin Casey, 20th Dental Squadron dental lab technician, constructs a night guard at Shaw Air Force Base, S.C., May 15, 2012. (U.S. Air Force photo by Airman Nicole Sikorski/Released)