Tooth Bleaching Burns Gums Causes, Symptoms, and Treatment

Tooth bleaching is a widely used cosmetic procedure to achieve a brighter and whiter smile. However, this treatment can sometimes lead to irritation or burning of the gums, which may cause discomfort and concern. In this article, we will explore the causes of burned gums during tooth bleaching, their symptoms, and treatments to help you manage this common side effect.

Causes of Burned Gums during Tooth Bleaching

Tooth bleaching products contain bleaching agents, such as hydrogen peroxide or carbamide peroxide, which are responsible for the teeth whitening effect. If these agents come into contact with the gums, they can cause irritation and thermal burns. This irritation is usually temporary and mild, but it can become noticeable if the bleaching product is left on the gums for too long or if the gums are particularly susceptible to irritation.

In addition to direct contact between the bleaching product and the gums, other factors can contribute to gum irritation during tooth bleaching, including:

  1. Improper Application: If the bleaching product is not applied properly or the tray fits poorly, it can lead to the bleaching agent seeping into the gums.

  2. Gum Sensitivity: Gum sensitivity, often due to receding gums or over-brushing, can make the gums more susceptible to irritation from tooth bleaching products.

  3. Poor Hydration: Keeping the mouth hydrated is important because dry air can exacerbate gum irritation. In addition, excessive water intake can also lead to a buildup of saliva, which can soften the牙龈.

  4. Using Non- Peroxide Products: Some over-the-counter tooth whitening products contains non-peroxide active ingredients, which may still cause irritation or burns to the gums.

Symptoms of Burned Gums during Tooth Bleaching

The symptoms of burned gums during tooth bleaching can vary depending on the severity of the irritation. Common symptoms include:

  1. Redness: The gums may appear red and swollen, which can be particularly noticeable around the areas where the bleaching product came into contact with the gums.

  2. Soreness: The gums may feel sore, tender, or swollen in the areas where they have been burned.

  3. Peeling: As the burn heals, the surface of the gums may peel or flake off, revealing underlying healthy tissue.

  4. Discoloration: The gums may turn dark or yellow due to the bleaching process, even if the teeth remain white.

  5. Swelling: The gums may become swollen, particularly around the area where the bleaching product was placed.

Treatment for Burned Gums during Tooth Bleaching

If you experience burned gums during tooth bleaching, it is important to seek professional dental care. A dentist can assess the extent of the damage, recommend appropriate treatments, and advise on how to prevent future occurrences. Some possible treatment options include:

  1. Stop the Treatment: If the burn is mild, you may be able to continue with the bleaching treatment after removing the product from the gums, especially if the irritation is temporary.

  2. Rinse with Saltwater: Rinsing your mouth with a solution of warm saltwater (½ teaspoon of salt in 8 oz. of water) may help soothe the irritation and reduce inflammation.

  3. Apply Aloe Vera: Gently applying a small amount of aloe vera gel to the affected areas can help soothe the skin and promote healing.

  4. Take Over-the-Counter Pain Medication: If the discomfort is significant, non-prescription pain relievers such as ibuprofen may be recommended to help manage the pain and swelling.

  5. Consultation with Dentist: If the burned gums persist or if you notice signs of infection, such as increased swelling, fever, or pus, it is essential to consult with a dentist for further evaluation and treatment. A dentist can provide a more personalized approach to managing this condition.

Preventing Burned Gums during Tooth Bleaching

To prevent burned gums during tooth bleaching, it is important to take several precautions:

  1. Read the Directions: Make sure to read and follow the instructions carefully for your specific tooth whitening product.

  2. Use Custom-Fitted Trays: If using at-home whitening kits, opt for custom-fitted trays made by your dentist to ensure proper contact between the product and your gums.

  3. Minimize Gel Application: Apply the minimum amount of bleaching gel necessary and avoid allowing the gel to come into contact with the gums.

  4. Watch for Symptoms: Be aware of any symptoms that may indicate burned gums, such as redness, soreness, or peeling, and take action accordingly.

  5. Consult with Dentist: If you have concerns about your teeth or gum health, or if you are particularly sensitive to bleaching agents, consult with a dentist before beginning any whitening program.

By taking these preventive measures, you can enjoy the benefits of tooth bleaching while minimizing the risk of gum irritation and ensuring optimal oral health.


Dr. Deepak Aulak is a London-based dental practitioner with a special interest in cosmetic dentistry. He has graduated from King's College London in Dentistry and has been decorated with numerous awards and scholarships for his outstanding achievements in the field of dental research and education.

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