9 Surprising Reasons Your Teeth Aren't Whiter

We all want brilliantly white teeth and a dazzling smile, but there are tons of culprits—and no, not just coffee or wine—that can cause unwanted surface stains. If you'd like your pearliest possible whites on display for the coming weeks of holiday parties and selfie opportunities, keep reading for some truly surprising reasons why your teeth aren’t as white as they could be. Then say cheese!