Dental abscess symptoms can start with what feels like an ordinary toothache, a swollen gum or discomfort when chewing. However, these seemingly minor problems may sometimes indicate a dental infection that requires urgent attention.

A dental abscess is a collection of pus caused by a bacterial infection in or around a tooth or gum. It can cause significant pain and swelling, and the infection may spread to surrounding tissues if it is not treated.

Many people try to manage tooth infections with painkillers or home remedies, hoping the discomfort will disappear. Unfortunately, these measures do not remove the source of an abscess.

Recognising the warning signs early can help you seek appropriate treatment before the problem becomes more serious.

In this article, we explain seven common dental abscess symptoms, what causes a tooth infection, the available treatment options and when you should seek emergency dental care.

What Is a Dental Abscess?

A dental abscess is a pocket of pus that develops when bacteria cause an infection in the tooth, gums or surrounding tissues.

There are two common types:

• Periapical abscess: This develops around the tip of a tooth’s root, usually when bacteria enter the inner part of the tooth through deep decay, cracks or injury.
• Periodontal abscess: This develops in the gum tissues surrounding a tooth and may be associated with gum disease or a deep gum pocket.

Both types require professional dental assessment and treatment.

A dental abscess does not usually disappear without treatment. Even if the pain reduces or the abscess drains by itself, the underlying infection may still be present.

The NHS explains that a dental abscess requires urgent dental treatment because the infection can spread if left untreated.

Source: NHS: Dental Abscess.

7 Dental Abscess Symptoms You Should Watch Out For

Dental abscess symptoms can vary depending on the location and severity of the infection. Some people experience intense pain, while others initially notice swelling or an unpleasant taste in their mouth.

Here are seven warning signs to look out for.

1. Persistent or Throbbing Toothache

One of the most common tooth abscess symptoms is persistent, throbbing pain around an affected tooth.

The pain may start gradually and become more intense over time. You may notice that it becomes worse when chewing, biting down or lying down.

In some cases, the discomfort may spread beyond the affected tooth to the jaw, ear or neck.

Unlike occasional tooth sensitivity, pain associated with an abscess may be constant and difficult to ignore. It may also interfere with eating, sleeping and everyday activities.

What it may mean: Persistent toothache can indicate an infection involving the inner part of the tooth or surrounding tissues. A dentist needs to examine the tooth to establish the cause.

2. Swollen Gums Around the Tooth

Another important warning sign is swelling around the affected tooth.

You may notice that the gum appears red, tender, shiny or swollen. Sometimes, a small raised bump resembling a pimple develops on the gum.

This may be a sign of a gum abscess or an infection draining through the gum tissue.

The swelling may be painful when touched, and you may experience discomfort when brushing or eating.

What it may mean: Swollen gums around a tooth can indicate a localised infection, although other gum conditions can cause similar symptoms. Do not attempt to squeeze or puncture the swollen area yourself.

3. A Bad Taste or Unpleasant Smell in Your Mouth

Have you noticed a sudden unpleasant taste in your mouth that does not disappear after brushing?

A dental abscess may release pus into the mouth, creating a foul or salty taste. You may also notice persistent bad breath.

Sometimes, an abscess drains naturally, and the pressure or pain may temporarily reduce. However, this does not mean the infection has cleared.

What it may mean: An unpleasant taste combined with toothache or swollen gums may indicate an infection that needs dental treatment.

Even if the pain improves after drainage, arrange an urgent dental assessment.

4. Sensitivity to Hot and Cold Foods or Drinks

Increased sensitivity to hot or cold foods and drinks may also occur when a tooth is infected.

You might experience sharp discomfort when drinking cold water, eating ice cream or consuming hot beverages.

This can happen when tooth decay or damage affects the inner tissues of the tooth.

Although sensitivity alone does not confirm a dental abscess, it becomes more concerning when accompanied by persistent pain, gum swelling or an unpleasant taste.

What it may mean: The tooth may have deep decay, inflammation or an infection affecting its inner tissues. Your dentist may need to examine the tooth and take an X-ray.

5. Swelling in Your Face, Cheek or Jaw

Swelling that extends beyond the gum and affects your cheek, jaw or face is a more serious warning sign.

You may notice that one side of your face looks larger than the other, or that your jaw feels tender and uncomfortable.

Facial swelling can indicate that the infection is spreading beyond the immediate area of the tooth.

What it may mean: A spreading dental infection requires urgent professional assessment.

If you develop facial swelling alongside fever, seek urgent dental or medical attention immediately. Do not wait for the swelling to disappear on its own.

If swelling is severe, affects your neck or eye, or causes difficulty swallowing or breathing, seek emergency hospital care.

6. Fever and Feeling Generally Unwell

A dental abscess can sometimes cause symptoms beyond the mouth, particularly when the infection is spreading.

You may experience:

• A raised body temperature or fever.
• General body weakness or tiredness.
• Feeling unwell or unusually uncomfortable.
• Swollen or tender glands around the jaw or neck.
• Reduced appetite.

These symptoms should not be ignored, especially when they occur alongside toothache or facial swelling.

What it may mean: Fever and feeling unwell may indicate that the infection is affecting more than the immediate area around the tooth.

Seek urgent professional assessment. Your dentist will determine whether dental treatment and additional medical management are needed.

7. Difficulty Chewing, Opening Your Mouth or Swallowing

A dental infection can cause pain and swelling that make normal mouth movements difficult.

You may struggle to chew food comfortably, open your mouth fully or swallow without discomfort.

Difficulty swallowing is particularly concerning when it occurs alongside swelling in the mouth, jaw, face or neck.

What it may mean: The infection may be spreading into surrounding tissues and needs urgent assessment.

Difficulty breathing or swallowing, especially when accompanied by significant swelling, is a medical emergency. Go to the nearest emergency department immediately or call your local emergency service.

What Causes a Dental Abscess?

Dental abscesses develop when bacteria enter and infect the tissues in or around a tooth.

Several dental problems can create an opportunity for bacteria to cause an infection.

Common causes include:

1. Untreated tooth decay

Deep cavities can allow bacteria to reach the pulp, the soft inner part of the tooth containing nerves and blood vessels. If the infection progresses, an abscess may develop around the root.

2. Cracked or damaged teeth

A cracked or broken tooth can create an opening through which bacteria enter the inner tissues.

3. Gum disease

Advanced gum disease can create deep pockets around the teeth where bacteria accumulate. An infection in these tissues may result in a periodontal abscess.

4. Dental injuries

An injury to a tooth may damage its internal tissues, sometimes leading to infection even if the damage is not immediately obvious.

5. Impacted teeth

A tooth that does not emerge properly, such as a partially erupted wisdom tooth, may create an area where bacteria collect and infection develops.

Treating dental decay and gum disease early can help reduce the risk of complications.

You can learn more about gum disease and its warning signs in our related article.

How Is a Dental Abscess Treated?

Dental abscess treatment depends on the location of the infection, the condition of the affected tooth and how far the infection has progressed.

The main aim is to remove the source of infection and prevent it from spreading.

Your dentist may recommend one or more of the following treatments.

1. Drainage of the Abscess

If pus has collected around a tooth or in the gum, your dentist may need to drain the abscess.

This involves creating a controlled opening to allow the pus to escape and relieve pressure.

The procedure is carried out using appropriate local anaesthesia where necessary.

However, draining the pus alone may not resolve the underlying cause. Additional treatment may be required.

2. Root Canal Treatment

If the infection has affected the pulp inside the tooth, root canal treatment may be recommended.

During the procedure, the dentist removes the infected or damaged pulp, cleans and disinfects the root canals, and seals the space.

A dental crown may be recommended afterwards to protect and restore the tooth, depending on how much of its structure remains.

Root canal treatment can help save a tooth that might otherwise need to be removed.

You can explore our current dental price list for information about available treatments and starting prices.

3. Tooth Extraction

Sometimes, a tooth is too damaged or infected to be restored successfully.

In such cases, your dentist may recommend extracting it to remove the source of infection.

The decision depends on the condition of the tooth, the surrounding tissues and whether the tooth can be predictably restored.

4. Antibiotics When Clinically Necessary

Antibiotics may be prescribed when there are signs that the infection is spreading or causing systemic symptoms.

However, antibiotics are not a substitute for treating the source of the infection. Drainage, root canal treatment or extraction may still be necessary.

Do not take leftover antibiotics or purchase them without appropriate professional advice.

The American Dental Association’s guidance on antibiotics for dental pain and swelling explains why dental treatment, rather than antibiotics alone, is usually the priority.

When Is a Dental Abscess an Emergency?

A suspected dental abscess should be assessed by a dentist as soon as possible. Do not wait several days to see whether the symptoms disappear.

Some symptoms require particularly urgent attention.

Seek urgent dental care if you have:

• Persistent or severe toothache.
• Swollen gums around a tooth.
• Pus or an unpleasant taste in your mouth.
• Facial or jaw swelling.
• Fever alongside tooth pain or swelling.

Seek emergency hospital care immediately if you experience:

• Difficulty breathing.
• Difficulty swallowing.
• Significant swelling in your mouth, face, throat or neck.
• Swelling around the eye or sudden changes in vision.
• Severe difficulty opening your mouth, particularly with spreading swelling.

These symptoms can indicate a serious spreading infection that may affect your airway or other surrounding structures.

Do not attempt to manage these emergency symptoms with home remedies or painkillers alone.

What Can You Do While Waiting for Dental Treatment?

If you suspect a dental abscess, arranging professional treatment is the most important step.

While waiting for your appointment, you may be able to manage some discomfort by:

• Taking appropriate over-the-counter pain relief, following the medicine instructions and checking with a pharmacist if you are unsure whether it is suitable for you.
• Eating soft foods that do not require much chewing.
• Avoiding very hot, cold or sugary foods and drinks if they worsen the discomfort.
• Cleaning your teeth gently with a soft-bristled toothbrush.
• Avoiding pressure or unnecessary touching of the swollen area.

Do not attempt to burst, squeeze or drain an abscess yourself. Also, do not place aspirin directly on your tooth or gums, as this can damage the tissues.

These measures may help you feel more comfortable, but they will not cure the infection.

Frequently Asked Questions About Dental Abscess Symptoms

Can a dental abscess go away on its own?

No. A dental abscess requires professional treatment. Even if it drains naturally and the pain reduces, the underlying infection may remain and can spread.

Can you have a dental abscess without pain?

Yes. Although many abscesses cause significant pain, some may produce less noticeable symptoms. Swelling, an unpleasant taste or a small gum bump may be the first indication. A lack of pain does not rule out infection.

How do I know if I have a gum abscess or a tooth abscess?

A gum abscess may appear as a swollen or painful area in the gum surrounding a tooth. A tooth abscess often develops around the root of an infected tooth. However, their symptoms can overlap, so a dentist needs to examine the area to determine the cause.

Will antibiotics cure a tooth abscess?

Antibiotics may be necessary in certain situations, particularly when an infection is spreading or causing systemic symptoms. However, they do not usually remove the source of the infection. Dental treatment such as drainage, root canal treatment or extraction may still be required.

How much does dental abscess treatment cost in Nigeria?

The cost depends on the type of infection, the tooth involved and the treatment required. For example, drainage, root canal treatment and extraction have different costs. At TeethMinder Dental Clinics, root canal treatment starts from ₦150,000, while other treatment costs depend on clinical assessment. You can check our dental price list for current starting prices.

Do Not Ignore the Warning Signs of a Dental Abscess

Dental abscess symptoms should never be treated as an ordinary toothache. Persistent pain, swollen gums, facial swelling, fever and an unpleasant taste can all indicate an infection that requires professional attention.

Early dental assessment can help identify the source of the infection and determine whether drainage, root canal treatment or extraction is necessary.

At TeethMinder Dental Clinics, our dental team can examine your teeth and gums, assess suspected infections and discuss suitable treatment options.

We welcome patients at our two Lagos locations:

• Ilasamaja: 23 Sadiku Street, Ilasamaja/Mushin, Lagos.
• Idimu: 1 Juba Alaro Bus Stop, along Liasu Road, Idimu–Ikotun, Lagos.

If you are experiencing symptoms of a dental abscess, contact us promptly rather than waiting for the pain to become worse.

Call 0810 492 2070 or email info@teethminder.com.

Book an appointment with TeethMinder Dental Clinics and let our dental team help you protect your oral health.