Marine Corps Air Station Iwakuni, Japan

Navy reservist Capt. Richard Burke, pediatric dentist, Naval reserve station Illinois, examines the teeth of his patient, Sebastian T. Pacheco, 4, as part of a routine checkup during Burke's annual active-duty training here July 19, 2012. - Navy reservist Capt. Richard Burke, pediatric dentist, Naval reserve station Illinois, examines the teeth of his patient, Sebastian T. Pacheco, 4, as part of a routine checkup during Burke's annual active-duty training here July 19, 2012.

Seaman Apprentice Cody M. Frink, a Robert M. Casey Medical and Dental Clinic dental technician, works on a Marine’s teeth during a dental checkup inside the Branch Health Clinic here July 18, 2012. “Flossing is really important,” said Frink. “It helps fight Gingivitis and gum disease. When Gingivitis starts to get into the more advanced stages, your gums start to recede. You start getting tooth loss and your gums will bleed when you brush them.” - Seaman Apprentice Cody M. Frink, a Robert M. Casey Medical and Dental Clinic dental technician, works on a Marine’s teeth during a dental checkup inside the Branch Health Clinic here July 18, 2012. “Flossing is really important,” said Frink. “It helps fight Gingivitis and gum disease. When Gingivitis starts to get into the more advanced stages, your gums start to recede. You start getting tooth loss and your gums will bleed when you brush them.”