It’s strong, it’s stretchy, it’s lightweight. Sometimes, after a dentist’s visit, it’s even free—and it can do a lot more than prevent cavities and halitosis. Turns out, dental floss isn’t just for ...

Add Yahoo as a preferred source to see more of our stories on Google. From twice-a-day brushing to using mouthwash, we do a lot to keep our teeth squeaky clean and sparkling. Another dental habit you ...