Studies show that after three months of normal wear, toothbrushes are less effective at removing plaque from teeth and gums. But changing brushes is also a good way to reduce your risk of oral infections, colds and the flu.

Tips for good toothbrush hygiene:

Let your toothbrush dry out between uses

After brushing, shake your toothbrush vigorously under tap water and store it in an upright position so that it can air out

To prevent cold and flu viruses from being transmitted, keep your toothbrush from touching other brushes when it is stored

Replace your toothbrush after you have had a cold