What Is a Dental Abscess
A dental abscess is a pocket of pus caused by a bacterial infection inside or around a tooth. It develops when bacteria invade the inner structures of the tooth or the surrounding gum tissue, triggering the body's immune response and causing pus to accumulate.
Abscesses do not resolve on their own. Without treatment, the infection can spread beyond the mouth — to the jaw, neck, or in rare but serious cases, further into the body. A dental abscess is always a condition that requires professional dental care.
Types of Dental Abscess
There are two main types of dental abscess, each with a distinct origin and location.
Periapical Abscess
A periapical abscess forms at the tip of the tooth's root. It typically develops when the dental pulp — the soft inner tissue containing nerves and blood vessels — becomes infected, usually as a result of untreated tooth decay, a cracked tooth, or a deep filling that has allowed bacteria to reach the pulp.
This is the most common type of dental abscess. It is closely associated with the need for root canal treatment, which addresses the infection at its source inside the tooth.
Periodontal Abscess
A periodontal abscess forms in the gum tissue beside a tooth, rather than inside it. It is usually the result of advanced gum disease (periodontitis), where bacteria become trapped in deep pockets between the tooth and gum.
It can also develop following a tooth injury, food impaction in the gum, or around a wisdom tooth that has not fully erupted. A periodontal abscess is treated through gum-focused care rather than root canal treatment.
What Causes a Dental Abscess
Both types share the same underlying driver: bacteria. The specific pathway differs by type.
Periapical abscess causes:
- Untreated tooth decay that has progressed to the pulp
- A cracked or fractured tooth that allows bacteria to enter
- A failed or leaking dental filling or crown
- Trauma to a tooth that damages the pulp without visible external damage
Periodontal abscess causes:
- Advanced gum disease with deep periodontal pockets
- Food or debris trapped beneath the gumline
- A partially erupted wisdom tooth (pericoronitis)
- An injury to the gum tissue
Symptoms to Watch For
Dental abscesses tend to present with recognisable, often sudden symptoms. These can include:
- Severe, throbbing toothache that may radiate to the jaw, ear, or neck
- Sensitivity to hot and cold temperatures
- Pain or discomfort when biting or chewing
- Swelling in the face, cheek, or jaw
- Swollen, tender lymph nodes under the jaw or in the neck
- A foul taste in the mouth or bad breath
- Fever
- A visible pus-filled bump (fistula) on the gum near the affected tooth
Not every abscess causes intense pain. In some cases — particularly when the pulp has died — pain may reduce or disappear, which can create a false sense that the problem has resolved. The infection, however, remains active and continues to spread.
If you experience facial swelling, difficulty swallowing, or difficulty breathing alongside dental pain, seek emergency care immediately. These are signs the infection may be spreading.
Why a Dental Abscess Should Never Be Ignored
A dental abscess will not go away without treatment. Antibiotics alone cannot fully eliminate an abscess — they may reduce the infection temporarily, but the source of the bacteria must be addressed by a dentist.
Left untreated, a dental abscess can lead to:
- Spread of infection to the jaw bone (osteomyelitis)
- Spread to the neck or floor of the mouth (Ludwig's angina — a medical emergency)
- Sepsis in rare, severe cases
- Permanent tooth loss
- Damage to surrounding teeth and bone
The earlier an abscess is treated, the more treatment options are available — and the greater the chance of saving the tooth.
How a Dental Abscess Is Treated
Treatment depends on the type and severity of the abscess, and whether the affected tooth can be saved.
For a periapical abscess, treatment typically involves root canal treatment to remove the infected pulp, disinfect the root canals, and seal the tooth. A dental crown is often placed afterwards to restore strength and function. If the tooth cannot be saved, extraction may be necessary, after which a replacement option such as a dental implant can be considered.
For a periodontal abscess, the dentist or periodontist will drain the abscess and thoroughly clean the affected gum pocket. Depending on the extent of the gum disease present, a course of periodontal treatment — including scaling and root planing — may follow.
In both cases, antibiotics may be prescribed alongside dental treatment if the infection is spreading or the patient has a fever, but they are a supplement to treatment — not a replacement for it.
If you are in pain now, the team at Drs. Nicolas & Asp Centers is available for emergency dental appointments across all four Dubai locations. Call 04 394 7777.
Can a Dental Abscess Be Prevented
Most dental abscesses are preventable. The following habits significantly reduce the risk:
- Brush twice daily with fluoride toothpaste and clean between teeth daily
- Attend regular dental check-ups so early decay and gum disease are caught before they progress
- Address cavities, cracked teeth, and gum disease promptly — do not delay treatment
- Wear a mouthguard during contact sports to protect against tooth trauma
- Do not ignore dental pain — early symptoms are much easier to treat than an established abscess
Frequently Asked Questions
No. A dental abscess will not resolve without professional treatment. The infection may appear to calm if the tooth pulp dies and pain reduces, but the bacterial infection remains active and will continue to cause damage. Dental treatment is always required.
Yes. A dental abscess should be seen by a dentist as soon as possible. If swelling extends to the face, neck, or floor of the mouth, or if you have difficulty swallowing or breathing, go to an emergency department immediately.
No. Antibiotics are not a substitute for dental treatment. Even if antibiotics reduce symptoms temporarily, they cannot eliminate the source of the infection — the abscess will return unless the infected pulp or diseased gum pocket is treated by a dentist.
Whether antibiotics are appropriate, and which type, is a clinical decision only your dentist can make. Do not self-medicate with antibiotics for a dental infection. See a dentist as soon as possible.
Initial treatment — draining the abscess and beginning root canal treatment or gum cleaning — is usually completed in one to two appointments. Full resolution, including any restorative work such as a crown, may take a few additional visits depending on the complexity.
Not necessarily. Many abscessed teeth can be saved with root canal treatment, especially when the abscess is caught early. However, if the tooth is severely damaged or the surrounding bone is extensively affected, extraction may be the recommended course of action.
Yes. Children can develop periapical abscesses, typically as a result of untreated decay in baby or permanent teeth. Prompt treatment is important — an abscess in a baby tooth can affect the developing permanent tooth beneath it.
Yes. Dental abscesses are treated across all four of our Dubai locations — Jumeirah, Marina Walk, The Springs Souk, and Uptown Mirdif. If you are in pain or have swelling, call us on 04 394 7777 to arrange an urgent appointment.
This depends on the type of abscess. A periapical abscess — originating inside the tooth — is typically treated by a specialist endodontist. A periodontal abscess — originating in the gum tissue — is typically treated by a specialist periodontist. In both cases, your dentist will assess your condition first and refer you to the appropriate specialist if needed. Call us on 04 394 7777 and our team will guide you to the right care.
Dental abscess treatment is generally considered a necessary dental procedure and is covered by most insurance plans, though the extent of coverage will depend on your specific policy.
At Drs. Nicolas & Asp Centers, we accept most major insurance cards for direct billing and handle all pre-approvals and paperwork on your behalf — so you can focus on getting the care you need. Feel free to give us a call so we can help you navigate you coverage.
- American Dental Association. "Abscess (Toothache)." MouthHealthy, 2024. mouthhealthy.org
- Tampi MP, Pilcher L, Urquhart O, et al. "Evidence-Based Clinical Practice Guideline on Antibiotic Use for the Urgent Management of Pulpal- and Periapical-Related Dental Pain and Intraoral Swelling." Journal of the American Dental Association, vol. 150, no. 11, 2019, pp. 906–921. jada.ada.org
- Cope AL, Francis N, Wood F, Thompson W, Chestnutt IG. "Systemic Antibiotics for Symptomatic Apical Periodontitis and Acute Apical Abscess in Adults." Cochrane Database of Systematic Reviews, no. 5, 2024, CD010136. cochranelibrary.com
- Herrera D, Retamal-Valdes B, Alonso B, Feres M. "Acute Periodontal Lesions (Periodontal Abscesses and Necrotizing Periodontal Diseases) and Endo-Periodontal Lesions." Journal of Periodontology, vol. 89, Suppl. 1, 2018, pp. S85–S102. aap.onlinelibrary.wiley.com
