How often should you change toothbrushes?

 
Your toothbrush is your first line of defense against the bacteria that cause gum disease, tooth decay, and bad breath.

Straight bristles and a clean and easy-to-grip handle are best to navigate the smaller spaces in your mouth. A soft bristle brush will effectively remove old food and bacteria that can collect around the bases of your teeth.

If you follow the standard recommendation of brushing your teeth for 2 minutes twice per day, you’re already taking steps to protect your teeth from cavities.

Brushing your teeth between each meal and after a sugary snack is an extra step you can take to be proactive about preventing tooth decay.

Brushing two or more times per day is still considered standard for a manual toothbrush. At this rate of use, the bristles in your brush will start to fall out and become mangled or twisted within about 3 months.

The Centers for Disease Prevention and Control (CDC) also advise to replace your toothbrush every 3 to 4 months Trusted Source, or whenever it appears to be getting worn out.

Once the bristles in your toothbrush start to lose their stiffness, the toothbrush is almost ready for the trash. Without bristles that brush aside food and plaque, your toothbrush quickly loses its efficiency.

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