Dave Burge slept in his truck overnight in frigid weather for a dental appointment. Burge needed dentures, but was unable to afford them. He was one of more than 1,200 patients, some of whom waited in line for days, to get a free appointment at a Remote Area Medical pop-up clinic in Knoxville, Tennessee. RAM provides medical, dental and vision care to uninsured and underinsured Americans around the country. "When they hand you your life back, that's life changing," Burge said.