Is a Tooth Abscess an Emergency?
Yes, a tooth abscess should always be treated as urgent, because it’s a pocket of infection that won’t heal on its own. Most abscesses need to be seen by a dentist within 24 to 48 hours. If your face or neck is swelling, you have a high temperature, or you’re struggling to swallow or breathe, it’s a medical emergency and you need care straight away, either from an emergency dentist or A&E.
Call 999 or go to A&E now if you have: swelling spreading to your eye, neck or floor of the mouth, difficulty breathing or swallowing, a high fever with shivering, or you feel very unwell and confused. These can be signs that the infection is spreading.
An abscess can feel like a throbbing toothache that keeps you up at night, a pimple on the gum, or a swollen cheek that seems to grow by the hour. The pain sometimes eases suddenly if the abscess bursts, which tricks people into thinking it’s gone.
It hasn’t. The source of the infection, usually inside the tooth or deep in the gum, is still there. The most common way to save the tooth is root canal treatment in Catford, which removes the infected pulp and seals the tooth from the inside.
If the tooth is too damaged to save, a careful tooth extraction removes the source of infection completely. Your dentist will explain which option makes sense after an exam and X-ray.
Abscess treatment is clinically necessary, so it’s available on the NHS through our NHS dentist service as well as privately. If you’re not sure where to go, our dental clinic on Brownhill Road can give you advice over the phone.
What is a tooth abscess?
A tooth abscess is a collection of pus caused by a bacterial infection. It forms when bacteria get into the inside of a tooth or the gum around it, and your body walls off the infection.
There are 3 main types:
- Periapical abscess: forms at the tip of the tooth root, usually because decay or a crack has let bacteria reach the nerve.
- Periodontal abscess: forms in the gum and bone beside the root, often linked to gum disease.
- Gingival abscess: forms in the gum surface only, sometimes from something stuck under the gum, like a popcorn husk.
What are the symptoms of a tooth abscess?
Symptoms can come on gradually or very fast. Common signs include:
- A severe, throbbing toothache that may spread to the ear, jaw or neck
- Pain when biting or touching the tooth
- Sensitivity to hot or cold
- A swollen, red gum or a small pimple-like bump on the gum
- A bad taste or smell in the mouth, sometimes with salty fluid if it drains
- Swelling in the cheek or jaw
- Swollen glands under the jaw or in the neck
- A raised temperature and feeling generally unwell
Some abscesses cause very little pain, especially if the nerve has already died. A painless bump on the gum still needs checking.
How urgent is a tooth abscess?
| What you notice | How urgent | What to do |
|---|---|---|
| Small gum bump, little pain, no swelling | Urgent but not an emergency | See a dentist within a few days |
| Throbbing pain, tender tooth, mild gum swelling | Urgent | See a dentist within 24 to 48 hours |
| Facial swelling that’s getting bigger | Very urgent | Same-day dental care or call NHS 111 |
| Swelling near the eye or neck, fever, trouble swallowing or breathing | Medical emergency | Call 999 or go to A&E |
What causes a tooth abscess?
Most abscesses start with something that lets bacteria past the tooth’s natural defences:
- Deep, untreated decay
- A cracked or chipped tooth
- An old filling or crown that has leaked
- Advanced gum disease
- Injury to a tooth, even years earlier
- A failed root canal treatment
Things that raise your risk include a sugary diet, smoking, a dry mouth, diabetes and skipping check-ups.
What can you do before you see a dentist?
Home care can ease pain while you wait. It can’t cure the infection.
- Call a dentist as soon as possible. If your practice is closed, call NHS 111 for urgent dental advice.
- Take painkillers as directed. Paracetamol or ibuprofen can help. Follow the dose on the pack, and check with a pharmacist if you have health conditions or take other medicines.
- Rinse with warm salt water. Half a teaspoon of salt in a glass of warm water, several times a day.
- Use a cold compress on the outside of the cheek for 15 minutes at a time.
- Eat soft, cool food and chew on the other side.
- Sleep with your head raised on an extra pillow to reduce throbbing.
Avoid these: don’t put aspirin directly on the gum (it burns the tissue), don’t apply heat to the face, and don’t try to burst the swelling yourself. Heat and squeezing can push infection deeper.
Will antibiotics get rid of a tooth abscess?
Not on their own. Antibiotics can’t reach the source of infection inside a tooth, because there’s no blood supply to the dead pulp.
Under UK guidance, dentists only prescribe antibiotics for dental abscesses when the infection is spreading or you’re unwell with it, or as a short bridge until treatment. The main fix is always to remove the source: draining the abscess, treating the root canal, or removing the tooth.
How is a tooth abscess treated?
Your dentist will examine you, test the tooth and usually take an X-ray to see where the infection is. Then the options are:
| Treatment | What happens | When it’s used |
|---|---|---|
| Drainage | A small opening lets the pus drain, easing pressure and pain quickly | As a first step, often on the same day |
| Root canal treatment | Infected pulp is removed, the canals cleaned and sealed | When the tooth can be saved |
| Extraction | The tooth is removed and the socket cleaned | When the tooth is too damaged or the patient prefers it |
| Gum treatment | Deep cleaning of the pocket, sometimes with drainage | For periodontal abscesses |
Root canal or extraction: which is better?
Keeping your natural tooth is usually the better long-term option when it’s restorable. A root-treated tooth can last many years, especially with a crown on a back tooth.
Extraction is quicker and simpler on the day, but it leaves a gap. Gaps can let neighbouring teeth drift and may need a bridge, denture or implant later.
What does recovery look like?
Most people feel a big drop in pain within 24 hours of drainage or root canal treatment. Mild soreness when biting can last a few days.
- Day 1: soft food, painkillers as needed, avoid chewing on the treated side.
- Days 2 to 3: swelling should be going down. Keep rinsing with salt water if advised.
- Week 1: most discomfort settles. If a root canal was started, you may return to finish it.
- Follow-up: a review appointment and, for back teeth, often a crown to protect the tooth.
Contact the practice if swelling gets worse after treatment, you develop a fever, or the pain returns.
Can you get abscess treatment if you don’t have a regular dentist?
Yes. NHS dental practices don’t hold a fixed patient register, so you can contact any practice that has urgent appointments available. If none can see you, NHS 111 will direct you to an urgent dental service.
When you call, describe your symptoms clearly: where the pain is, how long it’s been going on, and whether there’s swelling or a temperature. That helps the team judge how quickly you need to be seen.
Is abscess treatment safe during pregnancy?
Yes, and it’s important not to delay it. An untreated infection is a bigger risk to you and your baby than dental treatment.
Local anaesthetic is considered safe in pregnancy, and dentists can take X-rays with protection when they’re needed. Tell your dentist you’re pregnant so they can choose painkillers and any antibiotics that are suitable. NHS dental care is free during pregnancy and for 12 months after the birth with a valid exemption certificate.
What if a child has a tooth abscess?
Children can get abscesses on baby teeth as well as adult teeth. Look for a swollen gum, a bump that comes and goes, or a child who suddenly refuses to chew on one side.
Book an urgent appointment. An infected baby tooth can affect the adult tooth developing underneath, so it shouldn’t be left until it falls out.
What are the common myths about tooth abscesses?
- Myth: if it stops hurting, it’s healed. Pain often stops when the abscess drains or the nerve dies. The infection is still there and can flare up again.
- Myth: antibiotics alone will cure it. They may calm a spreading infection for a while, but the source still has to be treated.
- Myth: an abscessed tooth always has to come out. Many can be saved with root canal treatment.
- Myth: you’ll wait weeks for NHS emergency care. Urgent NHS appointments are prioritised by clinical need. NHS 111 can direct you to urgent care if your usual practice can’t see you.
- Myth: private treatment for an abscess is better than NHS treatment. Both are carried out by GDC-registered dentists following the same clinical standards.
How can you prevent a tooth abscess?
- Brush twice daily with fluoride toothpaste
- Clean between your teeth every day
- Cut down on sugary food and drinks, especially between meals
- Get cracked teeth and lost fillings checked quickly
- Keep regular check-ups so decay is caught while it’s small
- Don’t smoke
Why Catford patients trust Hillview Dental Centre
Hillview Dental Centre has cared for Catford families for more than 100 years, since 1915. Patients often describe us as the best dentist in Catford when they’re in pain, because we make urgent cases a priority and explain each step calmly.
We accept both NHS and private patients. Our GDC-registered dentists treat abscesses with drainage, root canal treatment and extractions, and we book follow-up visits so you’re never left wondering if the infection has cleared.
If you need an emergency dentist in Catford, call us on +44 20 3846 6010 as early in the day as you can. You can also email info@hillviewcentre.co.uk for non-urgent questions. We’re at 299 Brownhill Road, Catford, London SE6, a dental clinic in Catford that’s easy to reach from Bellingham, Hither Green and Lewisham.
Whether you see us as an NHS dentist in Catford or privately, you’ll get the same careful assessment and the same focus on keeping you comfortable.
Frequently asked questions
Can a tooth abscess go away on its own?
No. It may drain and feel better for a while, but the infection stays and usually returns. It needs treatment by a dentist to remove the source.
Can a tooth abscess make you ill?
Yes. An untreated abscess can spread into the jaw, face, neck or bloodstream. Fever, spreading swelling and feeling very unwell are signs to seek urgent care.
How long can I wait to see a dentist with an abscess?
Aim to be seen within 24 to 48 hours. If swelling is spreading or you have a fever, get help the same day or call NHS 111. Breathing or swallowing problems need 999.
Is abscess treatment painful?
Local anaesthetic numbs the area, so most patients feel pressure rather than pain. Many feel immediate relief once the pressure from the abscess is released.
Can I get abscess treatment on the NHS?
Yes. Abscess treatment is clinically necessary, so it’s available on the NHS. Urgent care falls under the urgent treatment band, and further treatment is a new course.
Conclusion
A tooth abscess is always urgent and needs a dentist to treat the source of the infection.
Spreading swelling, fever or trouble swallowing or breathing need emergency care straight away.
Early treatment with drainage, root canal treatment or extraction relieves pain and protects your health.
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