Quiz: Quiz: Is your toothbrush tainted?
Quiz: Is your toothbrush tainted?
By: Staff
Image: refer to hsw

About This Quiz

Your toothbrush cleans your teeth, but what cleans your toothbrush? And does it even need to be cleaned? Sink your pearly whites into this quiz and test your toothbrush sanitation knowledge.

About HowStuffWorks

How much do you know about how car engines work? And how much do you know about how the English language works? And what about how guns work? How much do you know? Lucky for you, HowStuffWorks is about more than providing great answers about how the world works. We are also here to bring joy to your day with fun quizzes, compelling photography and fascinating listicles. Some of our content is about how stuff works. Some is about how much you know about how stuff works. And some is just for fun! Because, well, did you know that having fun is an important part of how your brain works? Well, it is! So keep reading!

Receive a hint after watching this short video from our sponsors.