He turned a trailer into a free dental clinic

When Dr. Edwin Smith was a young dentist beginning his career in eastern Kentucky, he encountered many patients with rampant tooth decay. "I saw a lot of patients who hadn't seen a dentist before," said Smith, a Kentucky native. Appalachia has one of the worst dental health problems in the nation. And Kentucky has the third highest rate of tooth loss.
Read more: http://edition.cnn.com/2016/09/22/health/cnn-hero-edwin-smith-kids-first-dental-services/index.html?source=Snapzu