Jaw Pain or Earache From a Tooth Infection

Definition

Jaw pain or earache caused by a tooth infection occurs when inflammation or infection spreads beyond the tooth and irritates surrounding nerves, bone, or soft tissues.
This type of referred pain is a common sign that a dental problem is progressing and requires prompt assessment.

Is This a Dental Emergency?

Yes — jaw pain or earache linked to a suspected tooth infection should be assessed promptly, as these symptoms often indicate that infection is spreading beyond the tooth into surrounding tissues or nerve pathways.
Assessment within a structured emergency dentistry framework helps determine the source, extent, and urgency of the infection and identify the safest next steps to prevent complications.

Immediate dental emergency (seek care today):

  • Swelling on one side of the face or jaw
  • Persistent earache without an ear or sinus diagnosis
  • Severe throbbing or pressure pain
  • Fever or feeling unwell
  • Difficulty opening the mouth
  • Bad taste, pus, or discharge

Same-day urgent dental problem:

  • Pain when biting or chewing
  • Jaw pain lasting more than 48 hours
  • Heat sensitivity
  • Pain spreading to the temple, ear, or neck

Possibly non-urgent (still needs assessment):

  • Mild jaw discomfort without swelling or infection signs

If pain is worsening or spreading, delaying treatment increases the risk of infection spreading into deeper tissues.

Common Causes of Jaw Pain or Earache From a Tooth

  • Tooth infection or abscess
  • A cracked tooth can allow bacteria and pressure to irritate the nerve and surrounding ligament, causing pain to radiate into the jaw or ear.
  • Deep tooth decay affecting the nerve
  • Impacted or infected wisdom teeth
  • Gum infection or periodontal abscess
  • Bite imbalance causing ligament inflammation

Each cause can refer pain into the jaw or ear due to shared nerve pathways.

What Happens If You Delay Treatment

Short-term risks:

  • Increasing pain and pressure
  • Worsening jaw stiffness or earache
  • Difficulty chewing or sleeping

Medium-term risks:

  • Spread of infection into the jawbone or surrounding tissues
  • As infection progresses, jaw pain may be accompanied by facial swelling from tooth infection, indicating spread into surrounding tissues.
  • Abscess formation

Severe / worst-case outcomes:

  • Deep facial or neck infection
  • Difficulty swallowing or breathing
  • Hospital-based treatment in advanced cases

Early treatment greatly reduces these risks and often allows simpler care.

How Jaw Pain or Earache Is Treated at Deepcar Dental

Treatment focuses on identifying the source of infection, relieving pressure, and stopping the spread.

At Deepcar Dental, jaw pain and earache caused by dental infection are assessed by our clinical team led by Dr Ibraheem Ijaz, GDC-registered Principal Dentist with advanced training in restorative and digital dentistry. Same-day assessment is available where clinically appropriate.

1. Assessment and diagnosis

  • Clinical examination of teeth, gums, and jaw
  • Digital X-rays to identify infection, cracks, or bone involvement
  • Bite and ligament assessment
  • Evaluation of wisdom teeth if relevant

2. Emergency stabilisation

  • Relief of pressure and pain
  • Drainage of infection where required
  • Cleaning infected or inflamed tissues

3. Definitive treatment options

  • In many cases, emergency root canal treatment is required to remove infection from inside the tooth and stop referred jaw or ear pain.
  • Extraction if the tooth cannot be predictably saved
  • Treatment of cracked or weakened teeth
  • Management of wisdom tooth infections
  • Periodontal treatment for gum-related infections

What You Should Do Right Now

  • Contact an emergency dentist the same day if symptoms are worsening
  • Take recommended pain relief as directed
  • Apply a cold compress externally for swelling
  • Rinse gently with warm saltwater
  • Avoid chewing on the painful side
  • Apply heat
  • Ignore spreading pain or swelling
  • Rely on antibiotics alone
  • Delay assessment

FAQs About Jaw Pain or Earache From a Tooth

1. Why does my ear hurt if there’s no ear infection?

Dental nerves overlap with the ear and jaw, so tooth infections commonly refer pain to the ear.

No. Antibiotics do not remove the source of infection. Dental treatment is required.

Yes. Untreated infection can spread into deeper tissues. Early treatment prevents escalation.

Need urgent relief from jaw pain or earache?

Jaw pain or earache caused by a tooth infection rarely improves on its own.
Early assessment helps stop infection from spreading and provides faster, safer relief.