Canker sores, also known as aphthous ulcers, are painful lesions that develop inside the mouth. While their exact cause remains unclear, recent studies suggest that oral trauma from certain chewing habits may play a significant role in their development.

Understanding Canker Sores

Canker sores typically appear as small, round, or oval ulcers with a white or yellowish center and a red border. They can cause discomfort while eating, drinking, or speaking. Although they usually heal on their own within one to two weeks, recurring sores can significantly impact quality of life.

Chewing Habits and Oral Trauma

Many individuals develop habits such as chewing on the inside of the cheeks, biting the lips, or using hard foods that can cause repeated trauma to the oral mucosa. Over time, this trauma can lead to small injuries or irritations that may develop into canker sores.

Common Habits Contributing to Trauma

  • Chewing on the cheeks or tongue
  • Biting the lips or inner cheeks during stress or concentration
  • Consuming hard or abrasive foods
  • Using aggressive brushing techniques

Repeated trauma from chewing habits can cause micro-injuries in the mucosa. These injuries may disrupt the natural healing process, leading to the formation of ulcers. Additionally, trauma can trigger an inflammatory response, making the area more susceptible to infection and ulceration.

Prevention and Care

To reduce the risk of developing canker sores related to oral trauma:

  • Be mindful of chewing habits, especially during stress
  • Avoid hard or sharp-edged foods that can injure the mucosa
  • Practice gentle oral hygiene techniques
  • Use protective dental appliances if necessary

If sores do develop, maintaining good oral hygiene, avoiding irritating foods, and using topical treatments can help speed healing. Persistent or severe sores should be evaluated by a healthcare professional.