Humans May Be Able to Grow New Teeth Within Just 4 Years...Scientists are on the verge of a dental miracle.

Here’s what you’ll learn when you read this story: While bones can regrow themselves when they break, teeth aren’t so lucky, and that leads to millions of people worldwide suffering from some form of edentulism, a.k.a. toothlessness. Now, Japanese researchers are moving a promising, tooth-regrowing medicine into human trials. If the trial is successful, the researchers hope the drug will become available for all forms of toothlessness sometime around 2030. The average adult human body contains 206 bones—the hardened mixtures of calcium, minerals, and collagen that provide the biological scaffolding that walks us through our day. While we may not...