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Tooth Abscess?

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What Is a Tooth Abscess?

A tooth abscess is a bacterial infection found in the inner part of the tooth where pus has collected and can cause moderate to severe pain in people who suffer from the condition. Tooth abscesses can occur when a cavity has gone untreated for too long or when a crack or chip in the tooth allows germs to find their way into the dental pulp (the inner, soft part of the tooth), leading to infection.

Once the germs have made their way inside, they will spread down to the root and cause both inflammation and swelling. Once inflammation occurs, it will force the pus into a tight space (known as the abscess) at the tip of the root where the swelling occurs.


Signs and symptoms of a tooth abscess include:

  • Persistent, throbbing or severe toothache.
  • Extreme temperature sensitivity.
  • Pain when performing normal chewing or biting.
  • Fever.
  • Swelling in the face or cheeks.
  • Tender or swollen lymph nodes under the jaw or in the neck.
  • A rush of foul-tasting fluid in the mouth followed by cessation of pain, which means the abscess has ruptured.

Other Risk Factors

The following factors may increase your risk of a tooth abscess:

  • Poor Dental Habits — If you don’t brush and floss every day (preferably twice or more a day), this can significantly increase your risk of dental and oral complications like gum disease, tooth abscesses and cavities.
  • A High-Sugar DietToo much sugar is bad for your body and is especially hard on your teeth. Sodas, sweets and other foods high in sugar content can cause cavities, which can very quickly turn into infections or tooth abscesses.
  • Other Health Issues — Do you have diabetes or any other kind of autoimmune disease? If so, these can certainly increase your likelihood of getting a tooth abscess, so proper dental care and regular check-ups are essential.

When Should You Consult Your Dentist?

If you experience any of the signs or symptoms listed above, you should see your dentist immediately, especially if you begin to experience swelling in your face or feel feverish. If your dentist cannot see you immediately, you should go to an emergency room as these symptoms may indicate that the infection is spreading into your jaw and the surrounding tissue.

The only way to rid yourself of both the pain and the condition is to get proper dental treatment. You may feel a lessening of pain if the abscess ruptures, but you’ll still need to get professional help. The infection could spread to other parts of your jaw and beyond to parts of your head and neck. In a worst-case scenario, it could lead to sepsis, which is a potentially life-threatening infection throughout the entire body.

Testing and Diagnosing

Beyond regular dental check-ups, your dentist may perform some specialised tests to confirm you have an abscessed tooth:

  • Tooth Tapping — An abscessed tooth is often very sensitive to touch or pressure, so your dentist may apply both to the tooth in question to determine your pain levels.
  • X-rays — Your dentist may require you to take an X-ray or other imaging test (such as a CT scan) to help identify an abscess.
  • Lab Tests — If the first line of antibiotics doesn’t help combat the infection, your dentist may take a sample of the infection to find out what kind of germs are causing it. This will help pinpoint a more effective treatment plan moving forward.

Tooth Abscess Treatments

Treating a tooth abscess involves draining the abscess and ridding the area of infection. The tooth itself may be saved through root canal treatment, but in some instances it may need to be removed completely. Leaving a tooth abscess untreated can lead to serious, even life-threatening complications. Your dentist or oral surgeon may recommend the following:

  • Root Canal Procedure — If possible, your dentist will try to save your tooth by performing a root canal. The tooth is cleaned and disinfected on the outside, drilled into and cleaned out from the inside, and then filled with a safe adhesive cement to restore structural integrity (and protect the tooth from future infection). If taken care of properly, this restored tooth should last your entire lifetime.
  • Extract or Pull the Affected Tooth — Extracting the tooth is a last resort: if the tooth cannot be saved, your dentist will choose this option to preserve the health of the rest of your mouth. Once the tooth has been extracted, the abscess will be fully drained and cleaned to prevent further infection.
  • Antibiotics — If the infection is localised around the abscessed area, you may not need antibiotics. However, if the infection has spread beyond the area, your dentist may prescribe antibiotics to help slow or diminish the infection, especially if you have a weakened immune system.

While the area is healing, your dentist may recommend that you regularly rinse your mouth with warm salt water and take over-the-counter pain relievers as needed to help ease any discomfort you may encounter.

Preventing Tooth Abscesses

You can prevent a tooth abscess from ever occurring by taking proper care of your teeth, eating a healthy diet and getting regular dental check-ups. Here are some general guidelines to ensure you have a happy and healthy mouth:

  • Drink fluoridated water.
  • Use a fluoride toothpaste when brushing twice a day (or after every meal).
  • If your brush bristles become frayed, replace your toothbrush. Or simply replace it every three to four months as a general rule.
  • Floss daily with dental floss or an interdental cleaner.
  • Use an antimicrobial or fluoride mouthwash to help rid your mouth of any leftover food particles after meals.
  • Eat a more balanced and sugar-free diet.
  • Get regular dental check-ups and cleanings from your dentist.

If you have questions about your oral care routine or feel like you may be experiencing the early stages of a tooth abscess, contact your dentist for an examination. Your dentist will answer your questions and determine if you need treatment for a tooth abscess.

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