Tooth Abscess – Causes, Symptoms and Treatments

What is a Tooth Abscess?

A dental abscess is a localised collection of pus that develops within the tissues of the mouth, typically caused by a bacterial infection. This infection usually originates from the soft pulp inside a tooth or in the surrounding gums. A tooth abscess requires urgent dental care and should never be ignored.

There are two main types:

1. Periapical Abscess: Forms at the tip of the tooth root.
2. Periodontal Abscess: Develops in the gum tissue beside the tooth root.

In both cases, the body’s natural immune response seals off the infection, causing a painful, enclosed pocket of pus.

The Causes of a Tooth Abscess

The bacterial infection that leads to an abscess stems from lapses in oral health care, which allow bacteria to penetrate the protective layers of your mouth.

Deep, Untreated Tooth Decay:
This is the most common cause of a periapical abscess. If a cavity is left untreated, bacteria can erode through the hard enamel and dentine, eventually reaching the dental pulp (where the nerve and blood vessels are located). Once the pulp is infected, bacteria move down the root canal to the tip, forming the abscess.

Advanced Gum Disease (Periodontitis):
This is the main cause of a periodontal abscess. Gum disease creates deep pockets between the tooth and the gum. These pockets trap food debris and bacteria, which multiply and cause inflammation. If the gum tissue swells and seals off the top of the pocket, the infection can’t drain, leading to an abscess in the gum beside the tooth.

Trauma or Injury:
A cracked, chipped, or broken tooth can expose the inner pulp to bacteria, even if the injury seems minor. If left unrepaired, it becomes a direct pathway for infection.

Key Symptoms

Unlike a temporary toothache, the pain from an abscess is persistent and often escalates rapidly. If you experience any of the symptoms below in Northam or the Avon Valley region, please contact us for emergency care immediately.

Severe, Throbbing Toothache:
The main symptom is usually an intense, throbbing, or pulsing pain that can spread to your ear, jaw, or neck. It often worsens when you lie down.

Sensitivity:
Extreme pain or sensitivity when chewing, biting down, or consuming hot or cold foods and drinks.

Facial/Gum Swelling:
Noticeable swelling of the face, cheek, or gum area near the affected tooth. The gum may feel tender and appear red.

Bad Taste or Breath:
A persistent foul taste in your mouth or ongoing bad breath, which can occur if the abscess begins to leak pus.

Fever or Generally Unwell:
In more severe cases, the infection can cause systemic symptoms like a fever, feeling generally unwell, or swollen lymph nodes under the jaw or neck.

Crucially, sometimes the pain stops suddenly if the abscess bursts. Do not mistake this for the infection being resolved; the source of the bacteria must still be professionally treated.

Abscess Treatment Options

An abscess is a serious condition that will not heal on its own. Professional dental intervention is mandatory to drain the pus, eliminate the infection, and save the tooth if possible.

1. Drainage and Antibiotics:
   The first priority is often to relieve pressure and stop the infection from spreading. We may make a small incision into the abscess to drain the pus and will likely prescribe a course of antibiotics to help control the infection, especially if it has started to spread.
2. Root Canal Therapy (To Save the Tooth):
   For a periapical abscess (at the tooth root), a root canal is typically the definitive treatment. This procedure involves:
   a) Carefully accessing the inside of the infected tooth
   b) Removing the diseased pulp and bacteria
   c) Cleaning, disinfecting, and sealing the root canal system
   d) Placing a filling or a crown over the tooth to restore its strength and function.
3. Tooth Extraction (If the Tooth Cannot Be Saved):
   If the tooth is severely damaged by the infection and cannot be saved with a root canal, extraction may be the only safe option to remove the source of the infection entirely. We will then discuss options for tooth replacement, such as a bridge or implant, to restore your smile and chewing ability.

Emergency Care at Avon Valley Dental Centre in Northam

If you suspect you have a dental abscess, the most important action you can take is to seek professional care immediately.

Do not try to pop or drain the abscess yourself. You can take over-the-counter pain relief (following dosage instructions) and apply a cold compress to your cheek while waiting for your appointment to manage discomfort.

As your local Northam dental team, we are here to provide fast, effective care for dental emergencies and urgent care. If you are experiencing symptoms of an abscess, call us on the number below or book online for an appointment at your earliest convenience.