If you’ve ever had a canker sore on your cheeks, lips, or gums, you know how uncomfortable these tiny ulcers can be. Known medically as aphthous ulcers, canker sores can make eating, drinking, and even talking a challenge. But many people wonder: Are canker sores a sign of poor dental health?

The short answer is no—they’re not the same as cold sores and aren’t typically linked to poor oral hygiene. However, certain habits and health factors can make them more likely to appear. That’s why our general dentistry team in Airdrie has put together helpful tips to manage and prevent canker sores so you can keep your smile healthy and comfortable.

What is a Canker Sore?

The first step in preventing canker sores is understanding what they are and how they’re formed. Canker sores are small, shallow ulcers that appear inside the mouth—on the inner cheeks, lips, tongue, gums, or soft palate. They are not contagious and typically present as white or yellow with a red border.

Although the exact cause is unknown, several factors can trigger the appearance of canker sores, including:

  • Acidic or spicy foods and other food sensitivities, like chocolate and coffee
  • Dental work, such as braces or improperly fitted dentures
  • Lack of vitamins and minerals such as iron, folic acid, zinc, and B12
  • Hormonal changes, such as menstruation
  • Mouth injuries
  • Underlying health conditions, including nutritional and immune system problems
  • Stress or emotional strain

Pro tip: Rinse with warm water and avoid acidic, citrus, or spicy foods that are known to irritate canker sores.

Are Canker Sores a Sign of Poor Dental Health?

No—canker sores are not a sign of poor dental health. However, poor oral hygiene can exacerbate them. Keeping your mouth clean by brushing with a soft-bristle toothbrush twice a day, flossing regularly, and staying hydrated can help remove irritants that might aggravate a sore.

How Can I Prevent Canker Sores?

While canker sores are incurable and often recurrent, there are steps you can take to reduce their frequency and longevity. Our Airdrie general dentistry team recommends:

  • Maintaining proper oral hygiene by brushing and flossing daily
  • Opting for a soft-bristle toothbrush
  • Wearing a mouth guard during sports or any activity that may include a risk of mouth injury
  • Eating a healthy diet full of fruits, vegetables, and whole grains
  • Limiting acidic fruits like pineapple and oranges
  • Reducing your intake of starchy, salty, and spicy foods that could irritate your mouth
  • Discussing any dental appliances that are irritating the inside of your mouth with your dentist
  • Working to alleviate stress through relaxation techniques

Treatment & Relief

Most canker sores will heal on their own within 1 to 2 weeks. To ease discomfort in the meantime, we recommend:

  • Over-the-counter remedies such as anesthetic gels or corticosteroid mouth rinses
  • Rinsing your mouth with saltwater or baking soda to soothe irritation
  • Visitng your general dentistry team in Airdrie if your canker sores persist for over 2 weeks

How General Densitry in Airdrie Can Help

At Yankee Valley Dental, our Airdrie general dentistry services include:

  • Regular check-ups and cleanings to remove irritants and detect any underlying issues early
  • Personalized oral health advice tailored to your unique triggers and lifestyle
  • Comfortable and gentle dental care using soft tools and patient-centred practices

We’re here to support your smile—and help you say goodbye to canker sore pain! For all your general dentistry needs in Airdrie, contact Yankee Valley Dental today!