How to Properly Sanitize a Toothbrush (and When to Replace It)

We'll guide you through the simple steps to sanitize your toothbrush effectively. Leaving your toothbrush on the counter or storing it in a bathroom cabinet exposes it to harmful germs. Additionally, food particles, saliva, bacteria, and even blood can linger on the brush after use. (Remember, the main purpose of your toothbrush is to eliminate the bacteria in your mouth.)

Now that you're thoroughly grossed out, don't worry—there's hope! With some basic care, you can be confident in your oral hygiene tools. Prevent using a bacteria-infested toothbrush by following these cleaning tips.

Recommended Frequency for Disinfecting a Toothbrush

Aim to disinfect your toothbrush at least once a week. However, remember to rinse and clean it daily after each use to keep the bristles and handle free from buildup.

Key Considerations Before You Begin

You may think that covering the top of your toothbrush keeps it cleaner, but without proper airflow, it creates a perfect environment for bacteria growth. It’s better to keep your toothbrush exposed to air and stored upright.

While some suggest placing your toothbrush in the dishwasher, boiling it, or using a UV light for sanitizing, these techniques can harm the bristles or even ruin the entire brush. Avoid using the microwave to disinfect your toothbrush as the heat can cause damage.

What You Will Need:

• Small bowl or cup
• Antibacterial mouthwash
• Disinfecting wipes or clean cloth

How to Sanitize a Toothbrush Using Mouthwash

These steps can be used to disinfect both traditional and electric toothbrushes. Just remember to detach the head from the electric toothbrush before soaking it.

Step 1: Prepare the Bowl

Take a small, clean bowl or cup and pour in enough antibacterial mouthwash to completely submerge the toothbrush head.

Step 2: Submerge the Toothbrush

Soak the toothbrush head in mouthwash for no more than 15 minutes. (Prolonged exposure to mouthwash can harm the bristles, so avoid soaking it any longer.)

Step 3: Rinse and Air-Dry

Rinse your toothbrush with warm water, then let it air-dry completely. (For electric toothbrushes, allow the head to dry fully before reassembling.)

Cleaning Your Electric Toothbrush

Electric toothbrushes require a bit more care to maintain cleanliness. Any gaps, such as between the head and the handle, are prime spots for mold growth. Follow these steps to clean your electric toothbrush daily.

Step 1: Detach the Head

Detach the head from your electric toothbrush (following the manufacturer’s instructions). Rinse the bristles with warm water to clean them.

Step 2: Clean the Base

After each use, wipe down the base of your toothbrush with a disinfecting wipe or a clean cloth. This step is crucial for preventing mold buildup in the gap.

Step 3: Dry and Reassemble

Allow each part to dry thoroughly by keeping them separate. Once everything is dry, you can reassemble your electric toothbrush.

How to Extend the Cleanliness of Your Toothbrush

These strategies will help maintain the cleanliness of your toothbrush between regular disinfecting sessions.

• Rinse the bristles with warm water before and after every use to clear out any debris.
• Wipe down the handle each day with a clean cloth or disinfecting wipe to remove food particles and prevent toothpaste buildup.
• Ensure your toothbrush is completely dry and stored correctly.
• Never share your toothbrush to prevent the spread of bacteria.
• Keep your toothbrush away from the toilet to avoid contact with toilet water and germs; always flush with the lid closed.
• Avoid using a cover on your toothbrush, except when traveling. If you need one, opt for a cover with ventilation holes to allow airflow.

Commonly Asked Questions

• What is the best way to store my toothbrush?

  Proper storage of your toothbrush plays a critical role in preventing the buildup of bacteria. Germs thrive in warm, moist places, so avoid using a toothbrush cover or stashing your toothbrush in a drawer or medicine cabinet. Instead, let your toothbrush dry naturally in the open air.

  The American Dental Association (ADA) suggests letting your toothbrush air-dry completely by standing it upright, ensuring it doesn’t touch other brushes. After rinsing, shake off any excess water and gently run your finger along the bristles to remove remaining water. Then, store it in a cup or holder, making sure it remains upright and isolated from other brushes.

• When should I replace my toothbrush?

  Even with regular cleaning, you should replace your toothbrush every three to four months, or sooner if the bristles show signs of wear. If you notice discoloration, buildup, or if you’ve been ill, it’s time to get a new one.

• Is it safe to keep using my toothbrush if I drop it?

  There’s debate over whether or not you should continue using a toothbrush after it’s been dropped. Some recommend tossing it immediately if it falls, while others suggest cleaning and disinfecting it thoroughly.

  Where the toothbrush fell plays a significant role. If it fell into the sink, quickly rinse it under warm water and disinfect it. However, if it landed on the floor (especially in a public restroom) or in the toilet, it’s best to dispose of it.

• Can I use someone else's toothbrush?

  The ADA advises against sharing toothbrushes because they can carry bacteria. Sharing one can lead to the exchange of bodily fluids, bacteria, and viruses.

  While couples who kiss may think sharing a toothbrush is similar, it’s still recommended not to do so, especially if one person is sick to prevent the spread of illness.