Definition

A headache caused by a dental infection occurs when inflammation or infection in a tooth, gum, or jaw irritates shared nerve pathways in the face and head.
This type of headache is often persistent, one-sided, or pressure-based and may not respond to standard pain relief.

Is This a Dental Emergency?

Yes — headaches linked to a suspected dental infection should always be assessed promptly, as this type of pain often indicates infection spreading beyond the tooth into surrounding bone, sinuses, or nerve pathways.
Evaluation within a structured emergency dentistry pathway helps identify the source of infection, assess risk, and determine the safest next steps before complications develop.

Immediate dental emergency (seek care today):

  • Facial swelling on one side
  • Fever or feeling unwell
  • Severe throbbing headache
  • Bad taste, pus, or discharge
  • Severe toothache alongside headache
  • Difficulty opening the mouth

Same-day urgent dental problem:

  • Headache worsening over 24–48 hours
  • Pain spreading to jaw, ear, or temple
  • Pain when biting or chewing
  • Pressure behind the eyes or forehead

Possibly non-urgent (still needs assessment):

  • Mild headache without dental pain or infection signs

Headaches caused by infection rarely resolve without dental treatment and often worsen if delayed.

Common Dental Causes of Headache

  • Tooth infection or abscess
  • Cracked or heavily decayed tooth
  • Impacted or infected wisdom teeth
  • A gum abscess can spread infection into surrounding tissues, leading to referred pain felt as pressure or headache.
  • Upper tooth infection affecting the sinus
  • Clenching or grinding (jaw muscle strain)

These conditions commonly refer pain into the temples, forehead, eye socket, or top of the head.

What Happens If You Delay Treatment

Short-term risks:

  • Persistent or worsening headaches
  • Increasing facial or jaw pressure
  • Poor sleep and reduced concentration

Medium-term risks:

Severe / worst-case outcomes:

  • Deep facial or sinus infection
  • Neck space infection
  • Hospital-based treatment in advanced cases

Early dental treatment significantly reduces these risks.

How Headaches From Dental Infection Are Treated at Deepcar Dental

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

At Deepcar Dental, dental-related headaches 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 sinus involvement
  • Bite and muscle assessment
  • Vitality testing to assess nerve health

2. Emergency stabilisation

  • Relief of pressure and pain
  • Drainage of infection where required
  • Management of inflammation

3. Definitive treatment options

  • When the tooth nerve is infected, emergency root canal treatment is often required to remove infection and relieve pressure-related headaches.
  • Extraction if the tooth cannot be predictably saved
  • Treatment of cracked or weakened teeth
  • Periodontal treatment for gum infections
  • Bite management or night guard for clenching-related headaches

All findings and treatment options are explained clearly before proceeding.

What You Should Do Right Now

  • Arrange same-day dental assessment if the headache is worsening
  • Take pain relief as directed
  • Apply a cold compress externally if facial pressure is present
  • Avoid chewing on painful teeth
  • Rest your jaw and avoid clenching
  • Relying on antibiotics alone
  • Ignoring facial pressure or swelling
  • Waiting to see if symptoms settle

FAQs About Headaches Caused by Dental Infection

1. Can a tooth infection cause pain behind the eyes or forehead?

Yes. Upper teeth and jaw nerves share pathways with the forehead and eye region.

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

Most patients feel relief within 24–48 hours once pressure and infection are treated.

Book an Emergency Appointment for a Headache Caused by a Tooth Infection

Headaches caused by dental infection rarely resolve without treating the source.
Early assessment helps stop infection spreading and provides faster, more predictable relief.