You may have heard news reports recently that drinking from disposable plastic straws available at most restaurants is bad for the planet. That’s because these seemingly insignificant pieces of plastic add up – to the tune of 500 million straws every single day. Worse yet, they’re not biodegradable or recyclable, so those 500 million daily straws sit in landfills. To give you an idea of how much plastic that is, the National Park Service says it could add up to about 46,000 school buses full of plastic straws annually. But it gets worse, because in addition to being bad for the planet, straws can be bad for your oral health too. Here’s why.