Research indicates that around 50-60% of orthodontic patients get relief from blisters with orthodontic wax or silicone protectors on brackets and wires.
So are you suffering from a blister in the mouth from braces? This guide will explain why you get them, how to prevent them, and the best ways to treat them.
Key Takeaways
- Mouth blisters, often caused by braces, can be painful and might require professional attention if persistent.
- Prevent mouth blisters by using orthodontic wax, silicone barriers, and maintaining good oral hygiene.
- If blisters occur, treat them with over-the-counter pain relievers, saltwater rinses, and cold compresses for relief.
What are mouth sores?
Mouth ulcers, also known as canker sores, are small circular lesions that appear in different colors like yellow, red or gray.
These painful sores can disrupt your comfort and ability to eat and also makes it hard to maintain good oral hygiene. Although benign, persistent or very painful ulcers may be a sign of infection or another health issue that needs medical attention.
Canker sores are a type of mouth blisters. They appear inside the mouth and are non-contagious.
How braces can cause mouth blisters
Braces is a step towards a better smile but it comes with some irritations. Braces don’t cause canker sores but can trigger them due to friction and irritation caused by orthodontic appliances.
As the metal parts of the braces rub against the mouth tissues like gums and inner cheeks, the friction can cause tiny lesions that can become painful blisters.
The constant pressure and movement of wearing braces can cause small cuts on the soft oral mucosa making you more prone to get ulcers from the braces rubbing against the soft tissues.
Here are the complications of wearing braces:
- Metal parts rubbing against the gums and inner cheek areas.
- Constant pressure and movement causing small cuts.
- Orthodontic appliances rubbing against soft mouth tissues causing irritation.
This rubbing action of orthodontic devices inside your mouth can cause raw spots that can become painful canker sores from braces if not addressed.
These discomforts are common among people undergoing orthodontic treatment and can cause a sore mouth along the way to dental correction.
Treating blisters caused by braces
Preventing mouth sores is key to a comfortable experience while undergoing orthodontic treatment. To reduce irritation and focus on preventing mouth sores, use orthodontic wax, silicone barriers and good oral hygiene.
Applying orthodontic wax on the brackets forms a protective layer that reduces rubbing against the mouth tissues.
Silicone barriers also adds an extra layer of protection by shielding the inner mouth areas from the harsh elements of the braces.
By practicing good oral hygiene through regular brushing and flossing, you can prevent food particles from getting stuck and inflammation that can cause mouth sores.
Orthodontic Wax
Orthodontic wax is like beeswax and can be applied on the brackets of braces to reduce irritation.
By applying this wax on the bracket surfaces, a protective layer is formed that reduces the rubbing between the braces and the soft inner mouth tissues, making it more comfortable.
To apply: detach a small piece of orthodontic wax, roll it into a ball with your fingers and press it firmly onto the bothersome bracket.
This will create a smoother surface that will stop the bracket from rubbing against the inner mouth.
Replace the orthodontic wax often especially after meals to keep it as an irritant barrier.
Silicone Barriers
Silicone covers are a great alternative to orthodontic wax. They will shield the mouth tissues from rubbing against the brackets and reduce the chances of mouth blisters.
These barriers provide a thicker and more durable layer of protection than wax which can better alleviate irritation and discomfort.
To boost oral health and recovery, it’s good to use silicone barriers with regular antiseptic gargling.
Using antiseptic mouthwashes like hydrogen peroxide based mouthwashes helps in cleaning around the emerging sores, reduces infection risk and speeds up healing process.
Good Oral Hygiene
Good oral hygiene while wearing braces is key to preventing food particles from getting stuck that can cause inflammation and mouth sores.
Poor oral care leads to buildup of bacteria and food remnants that increases the chance for painful canker sores from irritation of braces.
Brush softly but thoroughly every day and make sure you reach all the nooks around your braces. A saltwater rinse or using a mouthwash helps in preserving oral health by reducing irritation to the oral tissue.
How to treat blisters from braces
Even with the best prevention, mouth blisters can occur. Studies report that 70-90% of people get some kind of oral lesion (blisters and ulcers) from the soft tissues irritation from brackets and wires.
To reduce pain and speed up recovery, you can use over-the-counter meds, saltwater rinse and apply cold compresses to mouth sores.
Instant relief from mouth blisters discomfort can be gotten through topical gels and analgesics. Saltwater rinse not only cleans but also reduces inflammation and speeds up healing process.
Applying a cold compress to the affected area will reduce swelling and pain. Treating mouth sores that may occur as side effect of orthodontic treatment is key to oral health.
Over-the-Counter Meds
Direct application of topical analgesics like Orabase and Anbesol to mouth sores will alleviate discomfort.
These over-the-counter meds will numb the area reducing pain so you can eat and talk. They will also help in the healing process by reducing inflammation and preventing further infections.
Follow the instructions on the packaging for these meds. Use them as needed on the area affected by mouth blisters from braces. This will control any pain or irritation.
Saltwater Rinse
Using a saltwater rinse can help in mouth blisters as it cleans the oral cavity, reduces swelling and helps in recovery of injured mouth tissues.
Regular use of these rinses will prevent Infections by keeping the mouth clean and removing bacteria.
To do this remedy, mix one teaspoon of salt in a cup of warm water and swish it inside your mouth for about 30 seconds before spitting it out.
Insider Tips: Do this multiple times a day especially after meals to keep your mouth clean and promote healing.
Cold Compress
Applying a cold compress on the affected area will give you instant relief from pain and swelling of mouth blisters.
By numbing the area, it reduces both inflammation and discomfort. Do this several times a day and it’s more effective.
Wrap an ice pack or frozen peas in a clean cloth and press it on the blister for several minutes. Do this as needed to reduce pain and swelling.

Dietary Changes to Avoid Blisters
Making changes to your diet can reduce the risk of getting mouth sores from braces. Drinking plenty of water will keep your mouth moist and prevent blisters.
Eating cold treats like ice cream may also reduce swelling and give you relief from mouth sores.
Acidic Foods
To prevent canker sores and ease the pain of existing ones, it’s best to avoid acidic foods and drinks.
Acidic items like citrus fruits, tomatoes and anything with vinegar will irritate the mouth lining. Opt for milder options like yogurt, applesauce or cooked veggies.
Making small changes to your diet can not only reduce the risk of these oral lesions but also hasten healing if they occur.
Soft Foods
Eating soft foods helps in the recovery of mouth sores because it’s gentle when eating. Good options for a bland diet that prevents mouth sores are mashed potatoes, yogurt and cooked veggies.
For those with mouth soreness, smoothies and pudding are comforting options that can be easily eaten.
Avoid consuming hard, crunchy or spicy foods to prevent worsening and hasten healing. Also, Include soft foods in your meals so you can eat without extra discomfort.
Regular Orthodontic Visits
Of course, you should also visit your orthodontist regularly. Orthodontic visits monitor progress, clean teeth and gums and address mouth sores. These visits will allow your orthodontist to make adjustments and check if your braces are working well.
- Monitor and adjust.
- Clean teeth and gums.
- Address mouth sores or complications.
Going to regular appointments will prevent complications like tooth decay and good oral hygiene.
Using tools like interdental toothbrushes and oral irrigators will also help keep your mouth clean and reduce sores.
Stress for Oral Health
Stress can hinder the mitigation and healing of mouth sores.
To hasten recovery from existing ulcers and prevent new ones, it’s best to reduce stress. Implementing stress management strategies like physical exercise, yoga, meditation or activities that promote relaxation can help reduce stress.
- Physical activity and yoga to reduce stress.
- Mindfulness techniques including deep breathing exercises.
- Drink plenty of water to prevent sores.
Bottom Line
Mouth blisters from braces can be painful, right? But you can do something about it. The first step is to use orthodontic wax, which creates a protective barrier between your mouth and the brackets. In addition, you should maintain good oral hygiene by brushing and flossing your teeth.
References:
- Mehra, T., & Best, A. M. “Patient-reported experiences with orthodontic appliances.” Clinical Orthodontics (2020).
- Bos, A., et al. “Patient discomfort in orthodontics.” European Journal of Orthodontics (2010).
- Al-Suleiman, A. M., et al. “Oral mucosal lesions in patients undergoing orthodontic treatment.” Journal of Dental Research (2019).