The 3-Month Rule

A good general rule is to change your toothbrush every 3 months. Over time, bristles become frayed and worn, making them much less effective at removing plaque.

Watch for Wear and Tear
Sometimes, a toothbrush needs to be replaced before the 3-month mark. Swap it out sooner if you notice:

• Frayed or splayed bristles
• Discoloration
• A lingering unpleasant odor
• Bristles that feel softer or less resilient

After Illness
It’s also a smart practice to replace your toothbrush after you’ve recovered from a cold, flu, or any contagious illness. This helps prevent you from accidentally re-introducing germs.

Listen to Your Routine
If you brush thoroughly twice a day for two minutes, your brush will naturally wear out closer to the 3-month guideline. A less frequent routine might mean it lasts a bit longer, but always let the condition of the bristles be your final guide.



When in doubt, err on the side of a fresh brush—your smile will thank you!