Most toothache is uncomfortable but not dangerous. A dental abscess is uncomfortable AND can become dangerous — the same underlying pathology (bacterial infection of the pulp or surrounding tissue) but with a meaningful risk of spreading to facial spaces where it becomes a hospital problem rather than a dental one. Telling the difference matters.
Routine toothache — typical features
- Sharp pain triggered by hot, cold, or sweet food and drink, settling within seconds of removing the trigger
- Mild constant ache that responds reasonably to over-the-counter painkillers
- No swelling — the gum and face look normal
- No bad taste or visible pus
- You feel generally well — no fever, no fatigue beyond what the pain causes
Routine toothache is usually pulpitis (inflamed nerve), early decay, or a cracked tooth. It needs a dentist within days but is not an immediate threat to your wellbeing. Manage with painkillers and see a dentist at the earliest sensible appointment.
Dental abscess — typical features
- Constant throbbing pain, often worse when lying down (gravity drains pus from the area when upright)
- Pain that does not respond fully to over-the-counter painkillers
- Visible gum swelling — a localised "boil" near a specific tooth, sometimes with a white pus head
- Bad taste in the mouth, often intermittent (the abscess discharges and refills)
- Mild facial swelling on the affected side
- Sometimes mild fever or general unwellness
A localised abscess is urgent — same-day matching — but rarely dangerous if seen promptly. The dentist drains the abscess, treats the underlying tooth (root canal or extraction), and prescribes antibiotics if appropriate. Pain relief is usually immediate.
Spreading infection — the medical-emergency category
A small subset of dental abscess presentations escalate to spreading infection of the facial spaces. This is a hospital problem, not a dental one. Call 999 or NHS 111 — not a dentist — if you have any of:
- Facial swelling extending towards your eye (preseptal or orbital cellulitis)
- Swelling spreading down towards the throat or neck (Ludwig's angina)
- Any difficulty swallowing — feels like there is something in your throat
- Any difficulty breathing — even mild
- Difficulty fully opening your mouth (severe trismus)
- High fever (over 38.5°C) with shaking chills
- Generally feeling very unwell — confused, severely tired, dizzy on standing
These presentations need IV antibiotics in hospital, sometimes airway protection, and urgent surgical drainage. They are uncommon — most dental abscesses do not progress this far — but when they do, the progression is fast and the outcome depends on early hospital admission. The matching service will tell you immediately if your symptoms suggest hospital care rather than dental care.
What about antibiotics from a GP?
GPs are increasingly reluctant to prescribe antibiotics for dental abscess because antibiotics alone do not cure the infection — the source (the dead nerve, the infected socket) is still present, and the abscess returns once the antibiotic course finishes. Only the dentist can address the source through drainage and definitive treatment. The matching service connects you with a dentist who can do both — drain the acute abscess and start the definitive treatment plan.
How fast should you act?
- Routine toothache: see a dentist within the working week
- Localised abscess (visible gum boil, bad taste, no facial swelling): same-day if at all possible
- Mild facial swelling without the spreading-infection signs above: same-day urgently
- Spreading-infection signs (eye, throat, neck, breathing, swallowing): call 999 or NHS 111 immediately, not a dentist
This is a dental matching service, not a medical service
For genuine medical emergencies — uncontrolled bleeding, facial swelling spreading to your eye, throat or neck, difficulty breathing or swallowing, or feeling severely unwell — these are hospital problems and need IV antibiotics, not a dental appointment.