The Truth About Cheek Biting & How It Impacts Your Oral Health

April 5, 2026

a woman holding her cheek in pain

Stress and anxiety can trigger all kinds of unconscious habits, including things like nail biting, jaw clenching, and for many people, biting the inside of their cheeks. However, did you know that this repetitive behavior, called cheek biting, can often harm your oral health over time if left unchecked? Here’s a closer look at why this habit can develop, and why it’s in your best interest to curb it.

What Causes Cheek Biting?

Cheek biting is often medically labeled as a body-focused repetitive behavior. It tends to occur the most during moments of stress, boredom, concentration, or anxiety, and it can become an automatic coping mechanism that your body relies on without conscious thought. In some cases, cheek biting is also linked to a misaligned bite, where the teeth don’t quite line up correctly, which in turn can make it easier to accidentally bite the inside of the cheek while chewing or talking.

Chronic cheek biting can lead to a range of other oral health issues; for example, this repeated irritation can cause sores, calluses, or thickened patches of tissue inside the mouth, which may become painful or prone to infection. In more severe cases, it can also lead to jaw discomfort, especially if paired with teeth grinding or clenching.

Tips for Breaking the Habit

Cheek biting is often tied to stress, meaning that managing your anxiety is a key part of stopping the habit. Some helpful tips to keep in mind include:

  • Practicing mindfulness or relaxation techniques to reduce overall stress levels.
  • Chewing sugar-free gum as a less harmful alternative.
  • Wearing a custom nightguard or mouthguard if biting happens during sleep or is linked to a misaligned bite. Orthodontic treatment can also correct a misaligned bite pattern.

If cheek biting is causing persistent sores, noticeable tissue changes, or discomfort that doesn’t go away, it’s a good idea to have it evaluated by your dentist. It may seem like a small and innocent habit at first, but it can take a toll on your oral health over time. Learning its causes and how to prevent it can really benefit your smile in the long run!  

About the Practice

Our team here at Ralph Avenue Dental Care has proudly served those in Brooklyn and the surrounding neighborhoods for several years. We offer a wide range of preventive, restorative, and cosmetic treatment options, as well as emergency dentistry with same-day appointments. If you have any questions about the blog or you’re ready to schedule an appointment, you can reach us online or give us a call for more information. Telephone: (732) 335-7155.