Canker Sores and Orthodontic Treatment: Understanding the Difference and Finding Relief
Many orthodontic patients experience irritation in the mouth, but not all sores are canker sores (aphthous ulcers). It’s important to differentiate between the irritation caused by braces or aligners and true aphthous ulcers, which are an autoimmune response triggered by factors like stress, food sensitivities, and nutritional deficiencies.
At Elate Orthodontics, we want to help our patients understand how orthodontic treatment can sometimes be a contributing factor to canker sores, even if it isn’t the direct cause. In this guide, we’ll explore what causes aphthous ulcers, how they differ from irritation caused by braces or aligners, and what you can do to prevent and treat them.
Are Braces or Aligners Causing Your Canker Sores?
While braces or aligners don’t directly cause canker sores, they can contribute to oral irritation, which may make the symptoms worse or more frequent.
- Braces and Aligners Cause Irritation, Not Canker Sores – The brackets, wires, or edges of aligners can rub against the inside of your lips and cheeks, leading to minor ulcers. However, these are not the same as canker sores and are simply the result of mechanical irritation.
- Canker Sores Are an Autoimmune Response – Aphthous ulcers are small, painful sores that develop inside the mouth due to stress, hormonal changes, nutritional deficiencies, or food sensitivities. While braces or aligners don’t cause them, the stress of orthodontic treatment can trigger a higher occurrence of canker sores at the beginning or throughout treatment.
If you are undergoing orthodontic treatment and notice an increase in canker sores, your body may be perceiving braces or aligners as a stressor, which can lead to more frequent outbreaks.
Canker Sore Symptoms vs. Orthodontic Irritation
It’s essential to understand the difference between canker sores and orthodontic irritation to find the best treatment approach.
| Symptom | Canker Sores (Aphthous Ulcers) | Orthodontic Irritation (Brackets/Wires/Aligners) |
|---|---|---|
| Cause | Autoimmune response (stress, nutrition, food) | Mechanical irritation from braces or aligners |
| Appearance | Round or oval sores with a white or yellow center and a red border | Red, irritated, or ulcerated area where braces or aligners rub |
| Location | Inside the lips, cheeks, tongue, gums | Near brackets, wires, or aligner edges |
| Pain Level | Can be severe, especially when eating acidic or spicy foods | Mild to moderate discomfort, worsens with continued friction |
| Healing Time | 7–14 days, may recur | Heals quickly if irritation source is removed |
| Treatment | Medications, stress management, nutritional support | Orthodontic wax, adjustments, soft foods |
What Causes Canker Sores?
Since aphthous ulcers are not caused by braces or aligners, what does trigger them?
✅ Stress & Anxiety – Emotional or physical stress can weaken the immune system, leading to more frequent ulcers. Orthodontic treatment, especially at the start, can be perceived by the body as a stressor.
✅ Nutritional Deficiencies – Low levels of vitamin B12, iron, folic acid, and zinc can increase susceptibility to canker sores.
✅ Food Sensitivities – Some people react to spicy, acidic, or gluten-containing foods, which can trigger ulcers.
✅ Immune System Disorders – Conditions like celiac disease or Crohn’s disease can contribute to frequent canker sores.
✅ Hormonal Changes – Women often experience more canker sores during certain phases of their menstrual cycle.
✅ Sodium Lauryl Sulfate (SLS) in Toothpaste – Some patients develop canker sores from toothpastes containing SLS, a common foaming agent.
How to Treat Canker Sores While Wearing Braces or Aligners
If you develop aphthous ulcers during orthodontic treatment, these aphthous ulcer treatments can help:
1. Over-the-Counter Medications
✔ Topical Numbing Agents – Orajel, Kanka, or benzocaine-based gels provide temporary pain relief.
✔ Antiseptic Mouthwashes – Products like Peroxyl can prevent infection and promote healing.
✔ Corticosteroid Creams – Prescription gels like Kenalog in Orabase can reduce inflammation.
2. Home Remedies for Canker Sores
✔ Salt Water or Baking Soda Rinse – Helps neutralize acidity and promote healing.
✔ Honey or Aloe Vera – Natural anti-inflammatory options to soothe discomfort.
✔ Cold Compress or Ice Chips – Can reduce pain and swelling.
3. Managing Orthodontic Irritation
✔ Use Orthodontic Wax – Apply wax to braces to reduce friction (Get More Info Here).
✔ Stay Hydrated – Dry mouth can make irritation worse.
✔ Avoid Spicy & Acidic Foods – These can aggravate both irritation and canker sores.
How to Prevent Canker Sores During Orthodontic Treatment
To minimize the occurrence of canker sores while undergoing orthodontic treatment:
✅ Manage Stress – Try meditation, exercise, or deep breathing to reduce stress levels.
✅ Eat a Nutrient-Rich Diet – Include foods high in vitamin B12, iron, and folic acid.
✅ Use an SLS-Free Toothpaste – This can help reduce irritation and potential triggers.
✅ Apply Orthodontic Wax – This protects your mouth from irritation caused by brackets and wires (Learn More).
✅ Stay on Top of Oral Hygiene – Rinse your mouth with water after meals and brush gently to avoid further irritation.
For more tips on orthodontic care, check out these helpful guides:
- What Can and Can’t You Eat with Braces?
- Braces vs. Invisalign for Teens: Which Is Best in Frisco?
- Affordable Orthodontic Care in Texas
Final Thoughts: Managing Canker Sores with Braces or Aligners
While braces or aligners don’t cause canker sores, they can contribute to mouth irritation, which may increase the likelihood of an outbreak. Managing stress, maintaining a healthy diet, and using protective strategies like orthodontic wax can help minimize discomfort.
If you’re experiencing persistent aphthous ulcers or irritation from your orthodontic treatment, Elate Orthodontics is here to help. Visit our locations in Frisco, The Colony, or Prosper to discuss solutions tailored to your needs.
Schedule your appointment today to keep your smile healthy and comfortable throughout your orthodontic journey!