Did you know your toothbrush is a breeding ground for bacteria? It's true! Studies show that toothbrushes can harbor thousands of germs, including E. coli and salmonella. Not exactly what you want in your mouth, right?

To combat this, make sure to:

• Replace your toothbrush regularly—every 3-4 months.
• Rinse your toothbrush thoroughly after use.
• Store it upright and let it air dry.

Want to learn more about keeping your smile germ-free? Here’s the full scoop.