When to Change Your Toothbrush

Is this your toothbrush?
Gross!
Time for a new one, friend.



How do you know when to change your toothbrush?

Look at the  bristles.

  

If the bristles are flared or bent, it's time for a new brush.

When the bristles are flared or bent, you are actually brushing with the sides of the bristles, instead of the tips. The bristle sides won't remove as much plaque and are rough on your gums, which can cause irritation or recession.

Forget the blue dye indicators—I find these markers misleading. Just look at the shape of the bristles. Are they bent or straight? Below I compare two of the same brush type. You can see the difference between what is acceptable and what should be trashed. 

The worn toothbrush on the left should be cleaning toilets,
not teeth!