During that full 12 hours in between brushes, bacteria could mess with your teeth’s enamel. And that might lead to cavities, root canals, capped teeth, and maybe even dentures down the road. However, a recent UK study about tooth decay found that the National Health Service, England’s public health system, could save more than 8 million pounds—the cost of more than 360,000 dental checkups—a year if every 12-year-old started chewing gum after eating. Who would have thought?
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