What Happens If You Don’t Dilute Hydrogen Peroxide for Mouthwash? — Burlington Dental Center (2024)

Hydrogen peroxide is a common household item with a multitude of uses, one of which is as a mouthwash. However, it's crucial to understand the importance of diluting it correctly before use.

Here, we’ll look into what happens if you don't dilute hydrogen peroxide for mouthwash.

Quick Answer: What Happens If You Don’t Dilute Hydrogen Peroxide for Mouthwash?

• Hydrogen peroxide is effective as a mouthwash for its antiseptic properties and can aid in whitening teeth, but must be diluted to a safe concentration (usually ~1%).

• Using undiluted hydrogen peroxide as a mouthwash can cause chemical burns in the mouth, throat irritation, abdominal pain, and (in extreme cases) vomiting.

• To safely use hydrogen peroxide as a mouthwash, mix 1 part 3% hydrogen peroxide with 2 parts water, swish for about a minute, and rinse thoroughly with water afterward.

The Role of Hydrogen Peroxide as a Mouthwash

Hydrogen peroxide is a mild antiseptic used on the skin to prevent infection of minor cuts, scrapes, and burns. It may also be used as a mouth rinse to help remove mucus or to relieve minor mouth irritation.

As a mouthwash, hydrogen peroxide is known for its bacteria-killing properties. It can help prevent infections, heal oral wounds, and even whiten teeth.

However, these benefits will only outweigh the risks when the solution is properly diluted.

Why Diluting Hydrogen Peroxide is Essential

Hydrogen peroxide is typically sold in brown bottles at concentrations of 3% to 10%. This concentration is too strong to be used directly in the mouth. It must be diluted to a safe level, usually around 1%, to avoid causing harm.

Not diluting hydrogen peroxide can lead to a variety of health issues.

The high concentration can cause chemical burns in the mouth, throat, and digestive tract. It can also lead to abdominal pain, vomiting, and in severe cases, it can be life-threatening.

Chemical Burns

One of the most immediate and visible effects of not diluting hydrogen peroxide for mouthwash is chemical burns. These can occur on the soft tissues of the mouth, including the gums, tongue, and inner cheeks.

Chemical burns from hydrogen peroxide can cause pain, redness, and swelling. In severe cases, they can lead to blisters and sores.

These burns can also increase the risk of oral infections.

Abdominal Pain and Vomiting

If swallowed, undiluted hydrogen peroxide can cause abdominal pain and vomiting. This is because the strong solution can irritate the lining of the stomach and intestines.

Repeated vomiting can lead to dehydration and electrolyte imbalances, which can have serious health consequences if not addressed promptly.

How to Dilute Hydrogen Peroxide for Mouthwash

Properly diluting hydrogen peroxide for mouthwash is a simple process. The key is to ensure you have the correct ratio of hydrogen peroxide to water.

For a safe and effective mouthwash, mix 1 part of 3% hydrogen peroxide with 2 parts of water. This will result in a 1% solution, which is safe for oral use. Always rinse your mouth thoroughly with water after using a hydrogen peroxide mouthwash.

*Please note that “Food Grade” hydrogen peroxide often contains 35% hydrogen peroxide. We never recommend using this product inside the mouth — the concentration is too strong, and the risks are too high.

Steps to Dilute Hydrogen Peroxide

1. Measure out 1 part 3% hydrogen peroxide and 2 parts water.

2. Mix the two together in a clean container.

3. Use the solution as a mouthwash, swishing it around your mouth for about a minute.

4. Spit out the solution and rinse your mouth thoroughly with water.

Precautions When Using Hydrogen Peroxide as Mouthwash

While hydrogen peroxide can be an effective mouthwash when used correctly, there are some precautions to keep in mind.

Firstly, never swallow hydrogen peroxide. Even when diluted, it can still cause digestive issues if ingested.

Always spit it out and rinse your mouth thoroughly with water after use.

Consult with a Dental Professional

Before starting any new oral care routine, it's always a good idea to consult with a dental professional. They can provide personalized advice based on your oral health needs and ensure you're using hydrogen peroxide safely and effectively.

They can also monitor your oral health and address any potential issues early, before they become more serious.

Be Aware of Potential Allergic Reactions

Some people may be allergic to hydrogen peroxide. If you experience any unusual symptoms after using a hydrogen peroxide mouthwash, such as itching, rash, or difficulty breathing, seek medical attention immediately.

It is best to do a small test before using hydrogen peroxide for the first time to ensure you're not allergic.

Final Thoughts

Hydrogen peroxide can be a useful addition to your oral care routine, but it's essential to use it correctly. Failing to dilute hydrogen peroxide for mouthwash can lead to chemical burns, abdominal pain, and other health issues.

By understanding the risks and taking the necessary precautions, you can safely enjoy the benefits of hydrogen peroxide as a mouthwash.

FAQs

Do I need to dilute hydrogen peroxide as a mouthwash?

Yes, it's essential to dilute hydrogen peroxide before using it as a mouthwash. Typically, a safe dilution is 1 part of 3% hydrogen peroxide with 2 parts of water, creating a solution of about 1% concentration.

What happens if you gargle hydrogen peroxide without diluting it?

Gargling with undiluted hydrogen peroxide can lead to chemical burns in the mouth and throat, severe irritation of the oral tissues, abdominal pain, and vomiting if swallowed. It can also disrupt the natural balance of oral flora and potentially cause other oral health issues.

Can hydrogen peroxide be used without diluting?

Hydrogen peroxide should not be used undiluted in the mouth. Its typical over-the-counter concentration of 3% is too strong for oral tissues and needs to be diluted to prevent harm.

What are the dangers of rinsing your mouth with hydrogen peroxide?

The main dangers of rinsing with undiluted hydrogen peroxide include chemical burns to the oral tissues, increased risk of oral infections (by killing off “good bacteria”), potential for gastrointestinal distress if swallowed, and the possibility of an allergic reaction. Even when diluted, it's important to use hydrogen peroxide cautiously and follow appropriate guidelines.

* Though the author of this post is a licensed dentist in the state of Kansas, this information is provided for informational and educational purposes only. Please use your best judgment and contact emergency medical services in the event of an emergency.