Canker Sore Treatment

Canker sores are small, painful ulcers that develop inside the mouth on the tongue, cheeks, lips, or gums. While they’re not contagious, they can cause significant discomfort and often return in cycles. At Chicago Dental 312, we help patients manage and reduce the frequency of these irritating sores.

Although the exact cause of canker sores isn’t fully understood, they’re believed to be linked to the immune system and triggered by factors like stress, hormonal changes, certain foods, or even toothpaste ingredients. One known irritant is sodium lauryl sulfate (SLS), a common foaming agent found in many toothpastes. We recommend using SLS-free toothpaste or those labeled “canker sore formula” to help prevent flare-ups.

In some cases, taking vitamin B12 supplements has also shown to reduce canker sore frequency in chronic sufferers. Over-the-counter gels or rinses may provide temporary pain relief, but if the sores persist or worsen, it’s important to schedule an appointment with our team for a full evaluation.