Toothpaste—we use it every day, but how much do we really know about it? We put it on our toothbrush each morning because it’s supposed to clean our teeth, freshen out breath, and protect our teeth from things like gingivitis. But perhaps we’ve been putting it on our toothbrush too long without thinking about what we’re putting in our mouth. How can something we’ve used almost our entire lives have escaped our attention? Luckily, dentists have started to speak out about the potentially harmful ingredients in toothpaste. Before you pick up that tube again, learn some of the ugly truths about toothpaste.