Out with the Old: How Often Should You Change Your Toothbrush?

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April 25, 2026

a woman brushing her teeth

Each day, you walk into the bathroom, grab your toothbrush, and clean your teeth. When finished, you rinse off the bristles and place it back in the cup to air dry. You may take a quick look at your smile in the mirror, but you never give your brush a second look. The reality is that after months of use, the bristles are frayed. Oh, and remember the flu you overcame a few weeks ago? Its germs are still hiding in your brush. Swapping out your toothbrush may be a new concept, but it’s recommended by dentists and professionals alike. Before reaching for yours again, find out when it’s time to throw out the old and replace it with something new.

How Often Should You Change Your Toothbrush?

You are encouraged to replace your toothbrush every 3 to 4 months. This recommendation comes from the Centers for Disease Control and Prevention (CDC) due to germs and bacteria that accumulate and the ineffectiveness of frayed bristles over time.

Regardless of whether you use a manual or electric toothbrush, the same recommendation applies. When you notice that the bristles no longer appear stiff, your brushing efforts are likely less effective, increasing your chances of developing decay, cavities, and gum disease.

How Should You Take Care of Your Toothbrush?

To keep your brush healthy and free of harmful bacteria, keep these helpful tips in mind:

  • Never share your toothbrush with anyone else. Germs can transfer between users, which can lead to gum disease and tooth decay.
  • Do not aggressively brush your teeth. This can wear down the enamel and lead to gum recession.
  • Rinse your toothbrush with water after every use.
  • Allow it to air dry instead of placing it in a drawer or covering it with a protective cap. This makes it easier for bacteria to grow.

What to Look For in a New Toothbrush

When preparing to swap out your old brush for a new one, there are a few things to keep in mind. If you prefer to use an electric device, change out the brush head. If you need to buy another manual toothbrush, make sure to look for the ADA Seal of Approval and soft bristles. Also, be sure that it fits comfortably in your hand.

Keep your smile healthy; replace your toothbrush so your morning and nighttime oral hygiene routine remains effective.

About the Practice

Washington Dental Associates is a locally owned practice led by a husband-and-wife dental team and multiple general dentists who care for patients of all ages. As a top-rated dentist with more than 450 5-star reviews, we prioritize preventive care, which we believe is the foundation for a healthy smile. We offer valuable patient education to help individuals care for their teeth and gums. If you have questions about your oral health, contact us at (201) 4534863 to schedule an appointment.