Dentists around the world rejoice: almost everyone has dental problems. Seals, bridges, braces - how many opportunities to "earn" on a supposedly irreplaceable resource - the health of our jaw. American dentist Stephen Lin debunks the myth that dental health is either naturally given or not. The 40-day plan he developed to restore the perfect jaw condition includes a unique diet, special breathing and sleep principles to help bring a crisp white smile and a pleasant smell back into your mouth.