Is Your Jaw Pain Caused by TMJ, Tooth Infection, or Grinding?

April 15, 2026
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Jaw pain can be annoying at times, especially if it affects your ability to eat or sleep. Some people ignore the pain at first, hoping it will go away on its own, however, jaw pain can sometimes indicate an underlying dental or jaw-related condition.

Jaw pain does not always have a single cause. It can be caused by problems with the TMJ, dental problems, or even habits like grinding the teeth. The first step towards finding relief is understanding the cause.

What Is Jaw Pain?

Jaw pain is usually experienced by an individual as a feeling of discomfort or soreness. This pain may be experienced either mildly or severely and may be either constant or episodic. 

Signs Your Jaw Pain May Be TMJ-Related

Temporomandibular joint (TMJ) disorders affect the hinge that connects your jaw to your skull. When this joint isn’t working properly, it can lead to noticeable symptoms.

  • Clicking or Popping Sounds – A clicking sound can be heard when opening and closing your mouth.
  • Difficulty Opening Your Mouth – Difficulty opening the mouth or a “locking” sensation in the jaw may also occur.
  • Pain Near the Ears – TMJ pain can radiate to your ears.
  • Frequent Headaches – Frequent headaches can occur due to tension in your jaw.

Relationship Between Bruxism and Jaw Pain

Bruxism, or teeth grinding, is another common source of jaw pain. Most people who grind their teeth do so during sleep without realizing it, and the constant pressure this puts on the jaw can build up into noticeable pain over time. Dental professionals recommend wearing a night guard for bruxism. 

Signs a Dental Infection Is Causing Jaw Pain

A tooth infection can spread beyond the tooth and affect the surrounding jaw area. This type of pain usually worsens without treatment.

  • Severe, Throbbing Toothache: Pain can begin in one tooth and then radiate to the jaw.
  • Swelling in the Face or Jaw: Noticeable swelling is a symptom of a potential infection.
  • Sensitivity to Hot and Cold: Persistent sensitivity may indicate an underlying dental infection or nerve involvement. 
  • Fever or Bad Taste in the Mouth: This may indicate a more serious infection that requires prompt dental attention. 

How to Tell the Difference Between TMJ, Infection, and Grinding

Because symptoms can overlap, it’s important to look at the pattern and triggers of your pain.

TMJ Disorders

The pain is usually related to jaw movements, including eating and talking. Clicking sounds and stiffness are other possible signs.

Teeth Grinding (Bruxism)

Discomfort is usually worse in the morning due to grinding during the night. Jaw pain and tooth wear are common indicators.

Dental Infection

Pain is usually steady and may worsen over time. Swollen cheeks and a painful tooth are typical symptoms.

Final Thoughts

It is important not to ignore jaw pain, especially if it gets worse or lasts for a while. This may be due to TMJ disorders or teeth grinding. It may also be a dental infection. However, if you are unsure of the source of pain in your jaw, visiting a dental professional will help you determine the problem.

For professional dental care, you can always contact South Star Dental. We offer personalized dental care to all our patients and make sure they receive the best care. Call us at (409) 777-0930 to schedule your appointment today!

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