Definition

Facial swelling from a dental cause is enlargement of the cheek, jaw, or tissues around the mouth due to infection or inflammation from a tooth or gum.
It often indicates a spreading dental infection and may require urgent or same-day dental treatment.

Is This a Dental Emergency?

Yes — facial swelling from a dental cause often requires urgent clinical assessment, as it can indicate spreading infection or increasing risk to surrounding tissues.

Emergency dental care focuses on assessing the cause, severity, and rate of progression before deciding on the safest next step. Our emergency dentistry care framework explains how swelling and infection-related symptoms are evaluated, prioritised, and managed when urgency is a concern.

Immediate dental emergency (seek care today):

  • Swelling near the eye, jaw, or neck
  • Difficulty swallowing or breathing
  • Fever or feeling systemically unwell
  • Rapidly increasing or spreading swelling

Same-day urgent dental problem:

  • Cheek or jaw swelling with tooth pain
  • Swelling worsening when lying down
  • Pain with limited mouth opening

Possibly non-urgent (still needs assessment):

  • Mild, localised swelling without pain or fever

If swelling fits the first or second category, do not wait — infection can progress quickly.

Common Causes of Facial Swelling

Several dental issues can lead to swelling, each with different levels of urgency. The most common include:

A dental abscess is an infection either inside the tooth or in the gum. Once bacteria spread into the surrounding tissues, swelling can occur rapidly.

Symptoms include:

  • Severe throbbing pain
  • Rapid swelling
  • Fever
  • Tender or swollen glands under the jaw
  • Difficulty swallowing

This is a medical emergency requiring urgent dental care.

If decay reaches the nerve or a tooth cracks, bacteria can infect the inner pulp.
This causes:

  • Severe pain
  • Local swelling
  • Sensitivity to temperature
  • Pain that gets worse when lying flat

The infection cannot clear without professional treatment.

Food or bacteria trapped deep under the gum can cause swelling, tenderness and bad breath.
Treatment usually involves:

  • Cleaning and drainage
  • Antibiotics (if appropriate)

Ongoing gum care

Partially erupted wisdom teeth often trap bacteria under the gum flap, causing:

  • Jaw swelling
  • Difficulty opening your mouth
  • Pain when chewing
  • Sore throat-like symptoms

     

This condition can flare up suddenly and require urgent treatment.

Facial swelling can also develop after dental trauma, such as a cracked or broken tooth. Damage to the tooth structure can allow bacteria to enter deeper tissues, leading to infection and swelling even days after the initial injury.

What Happens If You Delay Treatment?

Facial swelling caused by dental infection does not resolve on its own and often worsens without treatment.

Short-term risks:

  • Increased pain and pressure
  • Expansion of swelling
  • Fever and malaise

Medium-term risks:

  • Abscess formation- If infection continues to spread, it can lead to a dental abscess, where pus builds up in the tissues around the tooth or gum and causes increasing facial swelling.
  • Spread into jaw, cheek, or neck tissues
  • Difficulty opening the mouth (trismus)

Severe outcomes:

  • Facial cellulitis
  • Airway compromise (rare but serious)
  • Hospital treatment for deep infection

Facial swelling caused by dental infection can become dangerous if left untreated. Infection may spread into surrounding facial tissues, the jaw, or neck, and in rare cases can affect breathing or overall health. Facial swelling is often associated with severe toothache with swelling, which should always be assessed urgently.Early assessment and treatment significantly reduce these risks.

How Facial Swelling Is Treated at Deepcar Dental

At Deepcar Dental, emergency facial swelling is assessed and treated 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

We identify the exact cause using:

  • Clinical examination
  • Digital X-rays
  • Infection source identification
2

Immediate stabilisation

Depending on the cause, treatment may involve:

  • Pain control
  • Pressure reduction
  • Drainage where appropriate

We prioritise making you comfortable quickly.

3

Emergency treatment

This may include:

  • Root canal treatment: If infection has reached the tooth nerve, emergency root canal treatment may be required to remove the source of infection.
  • Drainage of an abscess : Where pus has built up, incision and drainage may be needed to relieve pressure and control infection.
  • Cleaning infected gum areas
  • Replacing a failed filling or crown
  • Extraction if the tooth cannot be saved

Your dentist will explain every step clearly.

4

Antibiotics (when clinically necessary)

Antibiotics may be prescribed when there are signs of spreading infection or systemic illness, such as fever or increasing facial swelling. However, antibiotics alone do not remove the source of dental infection and are not a substitute for dental treatment. When used, they are always prescribed alongside appropriate dental care.

We often asked if we treat swelling emergencies for patients outside Deepcar?Yes. While we are based in Deepcar, patients often travel to us from:
  • Stocksbridge
  • Oughtibridge
  • Wadsley
  • Sheffield North
  • Barnsley and surrounding communities

What You Should Do Right Now?

You may:

  • Contact an emergency dentist the same day if swelling is present
  • Take appropriate pain relief
  • Use cold compresses only
  • Keep your head elevated
  • Avoid chewing on the affected side

 

You should not:

  • Apply heat
  • Attempt to drain swelling
  • Ignore worsening symptoms

     

If symptoms worsen before your appointment, please contact us immediately.

Frequently Asked Questions about facial swelling

Is facial swelling always an emergency?

Often yes — especially if pain, fever, or rapid increase is present.

No. They do not remove the source of infection.

Swelling typically reduces within 24–72 hours once infection is treated.

If swelling affects breathing, swallowing, or the eye.

Urgent Dental Care for Facial Swelling

If you have swelling in your cheek, jaw, or face, contact us as soon as possible. Early assessment helps reduce risk and supports safer recovery.