For kids in developing world slums, dental hygiene is a real problem. With this cheap gum developed by a team of college students, they might be able to have their candy and clean teeth.
"The thing with gum is that you want it because it’s tasty. The health benefits are almost extra," says one of the gum’s creators, Josh Tycko. "Toothpaste is seen as extra expenditure for long-term dental care that is too far on the horizon to be thinking about when you’re living on a small budget."