Tooth Abscess Treatment: Options, Costs, and When to See a Specialist

Periapical Abscess

A periapical abscess forms at the tip of the tooth root. It develops when bacteria enter the dental pulp, the soft tissue inside the tooth containing nerves and blood vessels, typically through a deep cavity, crack, or trauma. The infection kills the pulp tissue and spreads out through the root tip into the surrounding bone.

This is the most common type of tooth abscess. It is treated by an endodontist or general dentist through root canal therapy, which removes the infected pulp and seals the tooth.

Periodontal Abscess

A periodontal abscess forms in the gum tissue alongside the tooth root. It is usually caused by gum disease (periodontitis) that creates deep pockets between the gum and tooth where bacteria accumulate. Foreign objects trapped in the gum, such as a popcorn kernel or broken toothpick, can also cause a periodontal abscess.

This type is typically treated by a periodontist (gum specialist) or general dentist through drainage and treatment of the underlying gum disease.

Gingival Abscess

A gingival abscess is limited to the gum tissue and does not involve the tooth root or the supporting bone. It is the least severe type and is often caused by a foreign body or localized irritation. Treatment involves draining the abscess and addressing the cause.

Common Symptoms

• Severe, persistent, throbbing toothache that may radiate to the jawbone, neck, or ear
• Sensitivity to hot and cold temperatures
• Pain when chewing or biting
• Swelling in the face, cheek, or neck
• Tender, swollen lymph nodes under the jaw or in the neck
• A pimple-like bump on the gum near the affected tooth (fistula) that may drain salty or foul-tasting fluid
• Bad breath or a persistent unpleasant taste in the mouth

Emergency Warning Signs

Certain symptoms indicate that the infection is spreading and requires immediate medical attention. Go to an emergency room if you experience difficulty breathing or swallowing, swelling that extends to the eye or neck, a fever over 101 degrees Fahrenheit (38.3 degrees Celsius), or confusion and general malaise with dental symptoms.

A spreading dental infection can become life-threatening. These symptoms should not be managed at home.

Incision and Drainage

If the abscess has formed a visible swelling filled with pus, the dentist or endodontist may need to drain it. This involves making a small incision in the swollen tissue to allow the pus to escape. The area is then flushed with saline to clean out remaining bacteria.

Drainage alone does not cure the underlying infection. It relieves pressure and pain while the definitive treatment, either root canal or extraction, is planned.

Root Canal Treatment

Root canal therapy is the primary treatment for saving a tooth with a periapical abscess. The endodontist removes the infected pulp tissue from inside the tooth, cleans and disinfects the root canals, and seals them with a biocompatible material. This eliminates the source of infection while preserving the natural tooth.

In cases with significant infection, the endodontist may place medication inside the tooth and a temporary filling, then complete the root canal at a second visit once the infection has subsided. The tooth will need a permanent crown afterward to restore its full strength.

Apicoectomy (Root-End Surgery)

If a tooth abscess persists after root canal treatment, an apicoectomy may be recommended. This surgical procedure removes the infected root tip and a small amount of surrounding tissue, then seals the end of the root canal. It is typically reserved for cases where retreatment through the crown of the tooth is not feasible or has already been attempted.

Tooth Extraction

If the tooth is too damaged to be saved, or if the abscess is severe and the tooth cannot be restored, extraction may be the best option. After the tooth is removed, the socket is cleaned to ensure all infected tissue is eliminated. The extracted tooth can later be replaced with a dental implant or bridge.

Extraction is generally considered a last resort when the tooth cannot be preserved through root canal treatment or surgery.

Typical Cost Ranges

The crown needed after a root canal is an additional cost, typically $800 to $1,500, and is placed by your general dentist or prosthodontist. Most dental insurance plans cover a portion of abscess treatment. Costs vary by location, provider, and case complexity.

• Emergency examination and X-rays: $100 to $300
• Incision and drainage: $150 to $400
• Root canal treatment: $700 to $1,500 (depending on the tooth)
• Apicoectomy: $900 to $1,900
• Tooth extraction (simple): $150 to $400
• Tooth extraction (surgical): $300 to $800
• Antibiotics (if prescribed): $10 to $50 with insurance

See an Endodontist When

• The abscess is caused by an infection inside the tooth (periapical abscess) and root canal treatment is needed
• A previous root canal on the tooth has failed and the abscess has returned
• The tooth has complex anatomy that requires specialized equipment (microscope, CBCT imaging)
• Your general dentist refers you for specialty care

See a Periodontist When

If the abscess is related to gum disease (periodontal abscess), a periodontist is the appropriate specialist. Periodontists focus on treating the gums and supporting structures around the teeth. They can drain the abscess, treat the underlying gum disease, and prevent recurrence.