Today more people travel to Hungary for dental care than to any other country in Europe. The fascinating story of how Hungary became Europe's dental chair is a case study in medical tourism, which has become a growing multi-billion-dollar industry -- exploding in places as varied as India, Brazil, Korea, and Costa Rica -- as countries rewrite laws to compete for patients. Doctors and dentists have to run a business, but does globalization destroy the dream of high-quality universal health care? Sasha Issenberg, the acclaimed author of The Sushi Economy and The Victory Lab, goes on the trail of dental tourism in Eastern Europe in search of answers.