science11:13Dentists debunk 14 teeth mythsTwo dentists debunk 14 of the most common myths about teeth. They explain the science behind white teeth... and what really causes cavities. They also debunk the idea that electric toothbrushes are better than regular toothbrushes. In fact, it's more about how you brush your teeth. And they mention how aligners, without X-rays and thorough analysis from an orthodontist, could be harmful to your teeth.