Urgent — Do Not Delay Treatment

Dental Abscess Treatment LondonSame-Day Emergency Drainage & Care

A dental abscess is a pocket of pus caused by a bacterial infection. It will not resolve on its own and requires professional dental treatment. Our emergency dentists in London can assess and begin treatment — often on the same day — to help relieve your pain and address the infection.

New Patient Offer
£95£30

Emergency assessment + X-rays if needed

Or call: 020 7183 2362
Open 7 days a week
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GDC registered dentists

Dental Abscess Treatment at Our London Emergency Clinic

A dental abscess is a bacterial infection that produces a collection of pus in or around a tooth. It can cause severe, throbbing pain, facial swelling, and general malaise. Importantly, a dental abscess will not heal on its own — the infection will persist and may spread to other areas if not treated by a dentist.

At South Kensington Medical & Dental, our emergency dentists are experienced in managing dental infections. We aim to see patients with suspected abscesses on the same day, providing drainage where appropriate and discussing the options to address the underlying cause of the infection.

We are open 7 days a week, including late evenings on Tuesdays and Thursdays until 8pm, and weekends (Saturday and Sunday 10am–4pm). Our clinic at 20 Old Brompton Road is directly next to South Kensington Tube Station.

Signs and Symptoms of a Dental Abscess

If you recognise any of these symptoms, we recommend seeking prompt dental assessment.

Intense, throbbing pain that may radiate to the ear, jaw, or neck

Swelling of the face, cheek, or lymph nodes

A foul-tasting discharge if the abscess ruptures

Fever, feeling generally unwell, or malaise

Sensitivity to hot and cold that lingers

Pain that worsens when lying down or biting

Call 999 or go to A&E if: You have difficulty breathing or swallowing, swelling is spreading to the eye or throat, you have a high fever with chills, or the swelling is making it difficult to open your mouth fully. These may indicate a spreading infection that requires urgent medical intervention.

Types of Dental Abscess

Periapical Abscess

The most common type. Occurs at the tip of the tooth root, usually caused by untreated decay that has reached the pulp (nerve). Bacteria enter the dead or dying pulp and create an infection that spreads to the surrounding bone.

Typical treatment: Root canal treatment or extraction

Periodontal Abscess

Develops in the gum tissue, usually alongside an existing gum (periodontal) disease. A pocket forms between the tooth and gum where bacteria accumulate, leading to a localised infection.

Typical treatment: Drainage, deep cleaning, antibiotics

Gingival Abscess

A localised infection in the gum tissue that does not involve the tooth itself. Often caused by a foreign body (such as a popcorn kernel or toothbrush bristle) becoming trapped under the gum.

Typical treatment: Drainage and removal of foreign body

How We Treat Dental Abscesses

Our priority is to address the infection and relieve your pain. Treatment typically follows these steps.

Diagnosis

Clinical examination and digital X-rays to identify the source and extent of the infection. We assess whether the tooth can potentially be saved.

Pain Management

Local anaesthetic to numb the area. We take care to help ensure the anaesthesia is effective even in the presence of infection, where numbing can sometimes be more challenging.

Drainage

If a swelling is present, we may make a small incision to drain the pus, which often provides rapid relief from the pressure-related pain.

Definitive Treatment

Depending on the assessment, this may include root canal treatment to save the tooth, extraction if the tooth cannot be restored, or deep periodontal cleaning for gum abscesses.

Managing a Dental Abscess at Home

These measures may help manage your symptoms while you wait for your emergency appointment. They do not replace professional treatment.

  • Take anti-inflammatory painkillers such as Ibuprofen (if suitable for you) to help manage pain and swelling.
  • Rinse gently with warm salt water (half a teaspoon of salt in a glass of warm water) several times a day.
  • Avoid very hot or very cold food and drinks.
  • Do not attempt to drain the abscess yourself — this can spread the infection.
  • Keep your head elevated when sleeping to help reduce pressure.
  • Complete any prescribed course of antibiotics in full, even if symptoms improve.

Dental Abscess Treatment Costs in London

Transparent pricing. A full treatment plan with costs is always provided before treatment begins.

TreatmentMember Price*Non-Member
Emergency Assessment (New Patient Offer)£30£95
Dental Examination£47.50£95
Digital X-Ray£10£20
Incision & Drainagefrom £92.50from £185
Root Canal (Front Tooth)from £347.50from £695
Root Canal (Molar)from £447.50from £895
Simple Extractionfrom £125from £250
Surgical Extractionfrom £325from £650
*Member prices apply to patients on our membership plan (£20/month). Learn more →

Frequently Asked Questions About Dental Abscesses

A dental abscess is a genuine infection that should be treated promptly. While many abscesses can be managed effectively with dental treatment, in rare cases the infection can spread to other areas of the head, neck, or body. If you experience severe facial swelling, difficulty breathing or swallowing, high fever, or swelling around the eye, please call 999 or attend A&E immediately.
A dental abscess will not resolve without professional treatment. While the pain may temporarily decrease if the abscess drains spontaneously, the underlying infection remains and is likely to recur, potentially more severely. Prompt treatment helps address the source of the infection.
Antibiotics alone do not cure a dental abscess — the source of the infection must be treated dentally (through drainage, root canal, or extraction). However, antibiotics may be prescribed alongside dental treatment if the infection is spreading, if there is significant facial swelling, or if you have a high temperature. Our dentists will assess whether antibiotics are clinically appropriate for your situation.
Our emergency assessment for new patients is £30 (usual fee £95). Treatment costs depend on what is required — drainage from £92.50 (members), root canal from £347.50 (members), extraction from £125 (members). We provide a full cost breakdown before starting treatment so there are no surprises.
In many cases, a tooth with an abscess can be saved through root canal treatment. This involves removing the infected pulp, cleaning the canal system, and sealing the tooth. However, if the tooth is too damaged or the infection is too extensive, extraction may be the most appropriate option. Our dentists will discuss all viable options with you.

Suspect a Dental Abscess? Do Not Wait

Dental abscesses require professional treatment. Our emergency dentists are available 7 days a week.

20 Old Brompton Road, South Kensington, London SW7 3DL

If you have difficulty breathing or swallowing, or severe facial swelling, call 999 or go to A&E immediately.

Registered. Regulated. Trusted.

At South Kensington Medical & Dental, we are fully registered with the Care Quality Commission (CQC) and our clinicians are registered with the relevant UK regulatory bodies, including the GDC and GMC. Our dentists, dental nurses and medical professionals deliver care that meets the highest clinical, safety and ethical standards, because our patients deserve nothing less.

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