Severe Toothache

Definition

Severe toothache is intense, persistent dental pain that does not settle on its own and often worsens over time. It is usually caused by infection, deep decay, or damage to the tooth nerve and often requires urgent dental treatment.

Is This a Dental Emergency?

Yes — in many cases, severe toothache requires urgent dental assessment, particularly when pain is persistent, worsening, or linked to infection or trauma.

Emergency dental care is based on identifying the underlying cause and assessing clinical risk before deciding on treatment. Our emergency dentistry care framework explains how symptoms like severe toothache are evaluated, prioritised, and managed safely when time sensitivity is a concern.

Use the guide below to understand the urgency.

Immediate dental emergency (seek care today):

Same-day urgent dental problem:

Possibly non-urgent (still needs assessment):

If your pain fits the first or second category, delaying treatment increases the risk of infection and complications.

Common Causes of Severe Toothache

Severe toothache usually means infection, inflammation, or structural damage inside the tooth or surrounding tissues.

When bacteria reach the inner nerve (pulp), the tooth can become intensely painful. Typical signs include:

  • Deep, throbbing pain
  • Pain that gets worse when lying down
  • Sensitivity to hot and cold
  • Swelling or a bad taste in the mouth

Left untreated, this can develop into a dental abscess, which is a serious infection.

If decay gets close to the nerve, the tooth may become:

  • Extremely sensitive
  • Tender when biting
  • Painful spontaneously

This is often a sign the tooth needs urgent restoration or root canal treatment.

A crack in the tooth can expose or irritate the nerve. You may notice:

  • Sharp, stabbing pain
  • Pain only when biting on certain parts of the tooth
  • Sensitivity to temperature

Cracks often need immediate protection, such as a temporary restoration or crown.

Severe pain can sometimes come from:

  • An abscess in the gum
  • Advanced gum disease
  • Food or plaque trapped deep under the gum

This may make the tooth feel loose or “high” when you bite.

Pressure or infection around a wisdom tooth can cause:

  • Radiating jaw pain
  • Earache
  • Swelling behind the last molar

All of these causes require professional assessment, not just pain relief.

What Happens If You Delay Treatment?

Delaying treatment increases the risk of a spreading dental infection, where pus can build up around the tooth or gum

Short-term risks:

Medium-term risks:

Severe outcomes if untreated:

Can severe toothache go away on its own?

Infection or inflammation inside the tooth may temporarily settle as the nerve dies, but this often leads to recurring pain, abscess formation, and swelling.
If swelling develops in the cheek or jaw, this may indicate spreading infection — see our guide on facial swelling from tooth infection to understand when urgent care is needed.

Leaving severe toothache untreated increases the risk of more complex and costly treatment later on.

How Severe Toothache Is Treated at Deepcar Dental?

At Deepcar Dental, our emergency appointments are led by Dr Ibraheem Ijaz, GDC-registered Principal Dentist, who has advanced training in restorative and modern digital dentistry. We provide same-day emergency care for patients across Deepcar, Stocksbridge, Oughtibridge, Wadsley, Sheffield North and Barnsley, focusing on fast pain relief and clear, honest advice about your options.

Your appointment typically includes:

1

Assessment and diagnosis

We examine the tooth, gums and surrounding structures, often using digital X-rays to look for:

  • Deep decay
  • Cracks
  • Infection at the root tip
  • Bone loss or gum issues
2

Immediate pain control

Where appropriate, we may:

  • Gently numb the area
  • Remove decay or pressure from the tooth
  • Place a temporary dressing to calm an inflamed nerve
  • Smooth any sharp edges or broken parts
3

Emergency treatment options

Depending on the diagnosis, same-day treatment may include:

  • Emergency root canal treatment: When infection reaches the nerve, emergency root canal treatment may be needed to remove infection and relieve pain
  • Temporary or permanent filling to seal and protect the tooth
  • Adjustment or repair of a filling or crown
  • Antibiotics if there are signs of spreading infection (alongside dental treatment)
  • Tooth extraction if the tooth cannot be predictably saved and you choose removal
We will always talk you through:

Our priority is to control pain, stop infection, and leave you with a clear treatment plan.

Do you treat severe toothache for patients outside Deepcar?

Yes. While we are based in Deepcar, we regularly see  emergency patients from nearby areas such as Stocksbridge, Oughtibridge, Wadsley, Sheffield North, and Barnsley. If you are unsure where to seek urgent care, our team can advise you based on symptoms.

What You Should Do Right Now?

FAQs About Severe Toothache

Does severe toothache always mean infection?

Often, yes. Persistent or throbbing pain commonly involves nerve inflammation or infection.

No. They may reduce pain temporarily but do not treat the cause.

Same day. Waiting increases the risk of abscess and tooth loss.

That depends on the diagnosis. We assess whether the tooth can be saved first.

This can indicate spreading infection and requires urgent care.

Book an Emergency Appointment for Severe Toothache

If you’re in severe pain, don’t wait and hope it settles. Early treatment usually means simpler, more predictable care.
We’re here to help you get out of pain, understand what’s happening and move forward with a clear, confident treatment plan.