How To Sterilize Toothbrush: Keep Your Toothbrush Clean And Healthy

Have you ever thought about the germs that might be lurking on your toothbrush? Even though it’s an essential tool for maintaining good oral hygiene, your toothbrush can harbor bacteria, viruses, and other microorganisms that can cause infections and diseases. Therefore, it’s important to know how to sterilize toothbrush properly to keep it clean and healthy. In this article, we’ll discuss different methods of sterilizing your toothbrush and answer some frequently asked questions related to this topic.

How to Sterilize Toothbrush: Different Methods

There are several ways to sterilize toothbrush, and each method has its pros and cons. Here are some of the most popular ones:

1. Boiling Water

Boiling water is a simple and effective way to kill germs on your toothbrush. To do this, bring a pot of water to a boil, then remove it from the heat source. Submerge your toothbrush in the hot water for 3-5 minutes, then rinse it with cold water and let it dry. However, be careful not to leave your toothbrush in boiling water for too long, as it can damage the bristles.

2. UV Sanitizer

UV sanitizers use ultraviolet light to kill germs on your toothbrush. You can buy a UV sanitizer device online or at a store that sells dental products. To use it, simply place your toothbrush in the sanitizer and turn it on. The device will emit UV light for a specific period of time, usually 5-10 minutes, to kill the bacteria and viruses. However, UV sanitizers can be expensive and may not be suitable for all types of toothbrushes.

3. Mouthwash

Mouthwash is another way to sterilize toothbrush, as it contains antiseptic agents that can kill germs. After brushing your teeth, rinse your toothbrush with mouthwash for 30 seconds, then rinse it with water and let it dry. However, mouthwash can be harsh on some toothbrush materials and may not be effective against all types of germs.

4. Hydrogen Peroxide

Hydrogen peroxide is a natural disinfectant that can kill germs on your toothbrush. To use it, mix equal parts of hydrogen peroxide and water in a cup, then soak your toothbrush in the solution for 10-15 minutes. Rinse your toothbrush with water and let it dry. However, hydrogen peroxide can bleach or discolor some toothbrush materials, so be cautious when using it.

FAQ: Answering Your Questions About How to Sterilize Toothbrush

Q: How often should I sterilize my toothbrush?

A: It’s recommended to sterilize your toothbrush at least once a week, especially if you’ve been sick or have a weakened immune system. However, you can sterilize it more frequently if you prefer.

Q: Can I use my dishwasher to sterilize my toothbrush?

A: No, you shouldn’t use your dishwasher to sterilize your toothbrush, as the hot water and detergents can damage the bristles and handle.

Q: Can I share my toothbrush with someone else?

A: No, you shouldn’t share your toothbrush with anyone else, as it can spread germs and infections. Each person should have their own toothbrush and avoid cross-contamination.

Q: Do I need to sterilize my toothbrush if it’s new?

A: Yes, you should sterilize your toothbrush even if it’s new, as it may have been exposed to germs during manufacturing, shipping, or handling.


Knowing how to sterilize toothbrush is an important aspect of maintaining good oral hygiene and preventing infections. Whether you prefer boiling water, UV sanitizers, mouthwash, or hydrogen peroxide, make sure to follow the instructions carefully and avoid damaging your toothbrush. Remember to also replace your toothbrush every 3-4 months or when the bristles become frayed or worn out. By taking care of your toothbrush, you’ll be taking care of your teeth and overall health.