How Often Should You Replace Your Toothbrush, According To Dentists

Are you wondering, “How often should you change your toothbrush”? If you have been brushing your teeth with the same tool for several months, it is probably time to replace it.

Well, most of us already know that toothbrushes don’t last forever. But you might be wondering when to replace your toothbrush. According to dentist recommendations and manufacturer’s guidelines, you should replace your toothbrush every 12-16 weeks. There are various cases when you might need to change your toothbrush sooner. However, if you don’t change a toothbrush when you should, your dental health may get affected adversely.

Read along to know when and why you should replace your toothbrush as recommended by dentists.

Importance of a soft and straight bristled toothbrush

A toothbrush is the first line of defense against bacteria to prevent gum disease, bad breath, and tooth decay. A clean and straight bristled toothbrush is best to navigate the tiny spaces in your mouth. You should use a soft bristle brush to remove food debris and bacteria that can stick between your teeth and on the gum line. On the other hand, avoid using a hard bristle brush because it can damage your gums and soft tissues. And if your toothbrush is worn out, it’s time to change it!

How often should you change your toothbrush?

According to the Centers for Disease Prevention and Control (CDC), you should replace your toothbrush every 3-4 months or whenever it looks worn out. To protect your teeth from cavities, the standard recommendation of brushing teeth is twice per day for 2 minutes. Moreover, brushing your teeth after a sugary snack or between each meal is a proactive step to prevent tooth decay. If you follow these recommendations, the bristles in your toothbrush will fall out and become twisted within 3 months –which is the right time to replace it.

How to know when it’s time to replace your toothbrush?

Take a look at your toothbrush before using it. You will notice when it starts to deteriorate. Notice the condition of the bristles. If they’re springy and resilient, they are likely sturdy enough to eliminate food debris and plaque. But if the bristles are not bouncing back to their original position, your toothbrush has likely lost its efficiency. Replace your toothbrush when the bristles are no longer stiff and straight.

Furthermore, look for cleanliness. Check your toothbrush for toothpaste residue build-up along with the handle or at the base of the bristles. If you don’t rinse your brush properly after using it, bacteria can get trapped in it –making you sick. So, if your toothbrush loses its freshness, it’s time to toss it.

How to take care of your toothbrush?

Consider your toothbrush as a personal grooming tool to make the most out of it. Follow these steps to take care of your toothbrush:

  • Don’t share your toothbrush with others
  • The head of your toothbrush should not touch the head of another toothbrush
  • Rinse your toothbrush with tap water after using it
  • Avoid sanitizing your toothbrush


Your toothbrush is an essential oral hygiene tool. You should take care of your toothbrush’s hygiene to maintain it and make the most out of its lifespan. How often you should change your toothbrush mainly depends on how often you are using it. If you’re following the standard recommendations, you should be replacing your toothbrush every 3-4 months (or before, if it’s worn out). You can mark your calendar when you purchase a new one, so you know when it’s time to replace it again.

If you’d like more advice on maintaining oral hygiene, please don’t hesitate to contact our expert dental team at A+ Star Smile Dental.