How Often Should You Change Toothbrushes?

Posted by 4th and Morris Dentistry on Jan 7 2022, 08:45 AM

All of us know that toothbrushes are not meant to last forever. However, there is too much confusion among people about how often a toothbrush needs to be changed. Many people often wait until the bristles of their old ones are noticeably worn to get a new toothbrush. Although it is unnecessary to get a new toothbrush every month, waiting more than two or three months will jeopardize your oral health.

As per the guidelines and recommendations of dentists and toothbrush manufacturers, you should ideally replace your toothbrush every 12 to 16 weeks.

Let's have a read on how often your toothbrush needs to be replaced.

How Often Should You Change Toothbrushes?

Our toothbrush is the first line of defense against dental concerns like tooth decay, cavities, gum disease, and bad breath. When the toothbrush has straight bristles and an easy-to-grip handle, it is easy to navigate through the smaller spaces in the mouth. A soft bristle brush can effectively clean the teeth by removing the food debris and bacteria from the bases and in between the teeth. When you follow the standard recommendation of the American Dental Association of brushing your teeth a minimum of two times a day, the toothbrush bristles will start to fall out and become twisted within three months. Therefore, the Centers for Disease Prevention and Control (CDC) recommends replacing your toothbrush every 3 to 4 months or whenever you feel it is getting worn out.

Other Reasons To Change Your Toothbrush

If you or a family member gets sick with viral or bacterial infections, replace everyone's toothbrush after the recovery. Check your children's toothbrushes regularly as they may need more frequent replacement. Besides, get rid of your toothbrush and buy a new one if anyone else mistakenly uses your toothbrush.

Why Is It Risky To Use a Toothbrush Beyond Its Recommended Lifespan?

When we use our toothbrush every time, its bristles get exposed to water and chemicals from the toothpaste and get a little weaker with each use. The bristles eventually bend and twist and can make the toothbrush less effective, causing more plaque buildup, gum disease, and tooth decay. 


Your toothbrush is your most important tool to maintain good oral hygiene. To maintain your toothbrush in good condition, use only your own toothbrush, store it upright, let it air dry, and replace it every 3 to 4 months. 

Call 4th and Morris Dentistry at (425) 226-6227 or schedule an appointment online for more information and recommendations on dental care.

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