Why Do I Keep Biting My Cheek? Causes, Prevention, and Solutions

Why Do I Keep Biting My Cheek? Causes, Prevention, and Solutions
Why Do I Keep Biting My Cheek? Causes, Prevention, and Solutions

Accidentally biting your cheek is a common annoyance that happens to most people from time to time. But when cheek-biting becomes a frequent occurrence, it can lead to discomfort, sores, and even more significant oral health problems. If you find yourself asking, “Why do I keep biting my cheek?”, you’re not alone. This comprehensive guide will explore the underlying causes, potential treatments, and strategies to prevent this from becoming a chronic issue.

What Happens When You Bite Your Cheek?

Cheek-biting usually occurs when you accidentally bite the soft tissue inside your mouth while chewing, talking, or even sleeping. While this may seem like a harmless habit, it can lead to inflammation, ulcers, and infections if left untreated. Each time you bite the same spot, you may create a painful sore, making it easier to bite the area again.

cheek biting scars why do i keep biting the inside of my cheek when i eat. why do i keep accidentally biting the inside of my cheek
Cheek biting scars

Understanding the Causes of Cheek-Biting

Several factors may contribute to chronic cheek-biting. Understanding these underlying causes can help you address and manage the issue effectively.

1. Poor Alignment of Teeth (Malocclusion)

One of the leading causes of frequent cheek-biting is a misalignment of the teeth, known as malocclusion. When teeth are not properly aligned, the chances of accidentally biting the inside of your cheek increase, particularly while chewing or speaking. Common types of malocclusion include overbites, underbites, and crossbites, all of which can contribute to accidental cheek trauma.

2. Stress and Anxiety

Cheek-biting is sometimes linked to stress and anxiety. Some people develop a habit of biting the inside of their cheeks as a nervous tic, much like nail-biting or grinding teeth (bruxism). Over time, this behavior can become a subconscious coping mechanism in response to tension or anxiety.

3. Accidental Biting During Meals

It’s easy to bite your cheek while eating, especially if you’re talking or distracted. Fast eaters or those who chew large bites of food may be more prone to these accidents. The repetitive nature of this issue can lead to sore spots, which are easier to bite again.

4. Sleep Bruxism (Teeth Grinding at Night)

Grinding or clenching your teeth at night, also known as bruxism, can contribute to cheek-biting during sleep. This unconscious activity may cause you to clench your jaw muscles, leading to inadvertent trauma to your cheeks or other oral tissues.

5. Cheek-Biting as a Behavioral Habit (Morsicatio Buccarum)

Chronic cheek-biting can sometimes evolve into a habitual condition called Morsicatio Buccarum. This is considered a type of body-focused repetitive behavior (BFRB), in which individuals repeatedly bite the insides of their cheeks, often unaware of it.

6. Dental Work

Ill-fitting crowns, bridges, or orthodontic devices like braces can contribute to accidental cheek-biting. If dental restorations aren’t properly adjusted, they may interfere with your bite, increasing the chances of biting your cheeks.

7. Swelling or Injury Inside the Mouth

In some cases, swelling due to a previous bite, infection, or irritation can cause the cheek to protrude slightly into the biting path of the teeth, making future bites more likely. A sore spot on the cheek can also make it vulnerable to repeated trauma.

why do i keep accidentally biting the inside of my cheek
why do i keep accidentally biting the inside of my cheek

The Risks of Repeated Cheek-Biting

If chronic cheek-biting is not addressed, it can lead to several complications, including:

  • Painful ulcers and sores: Frequent biting can create open sores that may become painful and infected.
  • Infection risk: Open wounds inside the mouth provide an opportunity for bacteria to enter, increasing the risk of infections.
  • Cheek swelling and inflammation: Persistent trauma can cause swelling, making it even more likely that you’ll continue to bite the affected area.

why do i keep biting the inside of my cheek when i eat scar of cheek biting inside mouth

How to Prevent Cheek-Biting

Preventing cheek-biting requires understanding the root cause and taking proactive steps to avoid future incidents. Below are some practical solutions:

1. Correct Misalignment with Orthodontics

If malocclusion is contributing to your cheek-biting habit, consider visiting an orthodontist. Braces, clear aligners, or other dental devices can help align your teeth properly, reducing the chances of accidental bites.

2. Be Mindful While Eating

Chewing slowly and taking smaller bites can significantly reduce the chances of accidentally biting your cheek. Avoid multitasking while eating, as being distracted increases the likelihood of a misbite.

3. Manage Stress and Anxiety

Since cheek-biting is sometimes linked to stress, adopting relaxation techniques can help manage the behavior. Meditation, yoga, deep-breathing exercises, or counseling can be beneficial for reducing stress-induced cheek-biting.

4. Consider a Mouthguard for Nighttime Bruxism

If cheek-biting happens while you’re asleep, a custom-fitted mouthguard prescribed by your dentist can help protect your cheeks and prevent damage. This is especially useful for people who grind their teeth at night.

5. Address Habitual Cheek-Biting

For those who struggle with habitual cheek-biting, behavioral therapy can help break the cycle. Habit reversal training (HRT) is a popular method used to unlearn body-focused repetitive behaviors like cheek-biting.

6. Keep Dental Work in Check

If dental work such as crowns, fillings, or orthodontic devices are causing you to bite your cheek, consult your dentist. Adjustments to your dental work may be needed to prevent further injury.

Cheek biting scar formed due to biting inside of mouth while eating. why do i keep biting the inside of my cheek
Cheek biting scar

When Should You See a Dentist?

If cheek-biting becomes a frequent or painful issue, it’s essential to seek professional advice. Here are some signs that warrant a visit to your dentist:

  • Persistent sores that don’t heal within a week or two
  • Signs of infection such as swelling, redness, or pus
  • Pain when eating or speaking due to cheek sores
  • Difficulty sleeping due to discomfort from cheek trauma

Your dentist will examine your bite, assess for any underlying dental issues, and recommend an appropriate treatment plan. They may refer you to an orthodontist or suggest other dental devices like a mouthguard to prevent further damage.

why do i keep accidentally biting the inside of my cheek
cheek biting scars

Conclusion: Protect Your Cheeks and Your Oral Health

Chronic cheek-biting can be more than just a nuisance; it can lead to serious oral health issues if not addressed. By understanding the causes and implementing preventive measures, you can protect your cheeks and maintain a healthier smile. Whether the problem stems from malocclusion, stress, or a habit, addressing the root cause is key to preventing future incidents.

If cheek-biting persists, don’t hesitate to consult a dental professional for guidance and treatment options. Taking action early can save you from unnecessary pain and protect your overall oral health.


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