Clean gently behind the last tooth
Use a small soft toothbrush to remove trapped debris without forcing it beneath tender gum.
Emergency
Wisdom Tooth Pain Treatment
Assess pain, swelling and inflamed gum around a wisdom tooth.
Wisdom tooth pain may come from inflamed gum, trapped debris, decay, infection or impaction. Assessment identifies the cause; removal is only one possible treatment.
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Wisdom tooth pain often starts in the gum around a partly erupted tooth.
A partially erupted wisdom tooth can leave a flap of gum that traps food and bacteria. The resulting inflammation is called pericoronitis and can cause pain, swelling, a bad taste and difficulty opening the mouth.
Pain may also come from decay, an abscess, impaction or damage affecting the neighbouring molar. A dental assessment distinguishes these causes and determines whether cleaning, local treatment, monitoring or eventual removal is appropriate.
Common signs
Pain behind the back tooth
The gum may feel sore, swollen or tender when biting.
Bad taste or breath
Food and bacteria trapped under a gum flap can cause an unpleasant taste.
Difficulty opening your mouth
Inflammation may make the jaw feel stiff or painful.
Swelling
The gum, cheek or jaw may become visibly swollen if inflammation or infection increases.
Wisdom tooth pain? Do these things now.
Keep the area as clean as comfort allows and arrange care if symptoms persist or increase.
Rinse with warm salty water
Gentle rinsing may help keep the inflamed area clean. Do not use water hot enough to burn.
Contact a dentist
Seek prompt advice for swelling, restricted mouth opening, fever or pain that is not settling.
What to avoid
- Do not poke under the gum with sharp objects.
- Do not place aspirin or caustic substances on the area.
- Avoid smoking and foods that repeatedly lodge beneath the gum flap.
When is wisdom tooth pain an emergency?
Inflammation around a wisdom tooth can spread into nearby tissue and affect jaw movement or swallowing.
Increasing facial swelling
Swelling into the cheek, jaw or neck needs urgent assessment.
Difficulty swallowing or breathing
Call 999 or attend A&E if the airway or swallowing is affected.
Restricted mouth opening
Worsening inability to open your mouth may indicate spreading inflammation.
Fever or feeling unwell
Systemic symptoms alongside dental pain require prompt care.
Not sure whether it can wait?
Our emergency dental team can help you understand whether you need to be seen urgently.
What happens if wisdom tooth problems are left untreated?
Some episodes recur because the tooth remains difficult to clean or lacks space to erupt normally.
- Inflammation and pain may repeatedly return.
- An abscess or spreading infection can develop.
- Decay may affect the wisdom tooth or adjacent molar.
- Gum and bone around the neighbouring tooth may be damaged.
How wisdom tooth pain and pericoronitis are treated
The dentist examines the gum, wisdom tooth and neighbouring molar, checks how widely you can open your mouth and may take an X-ray to assess eruption, impaction and the roots. Treatment depends on the cause and severity.
Clean and settle the acute problem
Debris may be flushed from around the tooth and tailored cleaning advice provided.
- local cleaning or irrigation
- pain-management advice
- antibiotics only when clinically indicated
Treat damage around the tooth
Decay, gum injury or an abscess may require restorative or infection-focused treatment.
Consider wisdom tooth removal
Extraction may be discussed for recurrent infection, untreatable decay or damage to adjacent structures. Timing depends on the acute condition and X-ray findings.
After emergency wisdom tooth care
- Continue careful cleaning as instructed.
- Take prescribed medication exactly as directed.
- Attend planned review or extraction appointments if the cause remains.
Reducing recurrent inflammation
- Keep the area behind the last molar clean with an appropriately sized brush.
- Attend review if symptoms recur.
- Discuss definitive removal when repeated episodes or damage make retention unsuitable.
Related emergency dental guidance
These pages explain closely related symptoms and treatments without replacing a dental assessment.
Common questions
Clear answers to questions patients often ask before an urgent dental assessment.
Seek urgent dental care for increasing facial or neck swelling, fever, worsening difficulty opening the mouth or severe pain. Call 999 or attend A&E if swelling affects breathing or swallowing.
No. Pain from inflamed gum may initially be managed with cleaning and local care. Removal may be considered for recurrent infection, untreatable decay, impaction-related damage or other clinical reasons.
Pericoronitis is inflammation of the gum around a partially erupted tooth, most often a lower wisdom tooth. Food and bacteria can collect beneath the gum flap and cause pain, swelling and a bad taste.
Partly erupted teeth can trap debris beneath surrounding gum, causing inflammation or infection. Decay, trauma from the opposing tooth and an abscess are other possibilities that require assessment.
Yes. Infection can extend into the cheek, jaw or neck. Increasing swelling, fever, significant illness, restricted mouth opening, or breathing or swallowing difficulty needs urgent attention.
Inflammation around a lower wisdom tooth can affect nearby chewing muscles and make jaw opening painful or restricted. Worsening restriction can be a sign of spreading inflammation and should be assessed promptly.
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Other emergency dental problems we treat
Explore guidance for other common dental emergencies, including symptoms, what to do immediately and when to seek urgent dental care.
Swelling or dental abscess
Swelling, tenderness or a bad taste may indicate an infection that should be examined promptly.
Broken or chipped tooth
Assessment and repair options for a tooth damaged by an accident, impact or biting.
Toothache and severe tooth pain
Persistent, throbbing or night-time tooth pain needs assessment to identify its cause and urgency.
Lost filling or crown
Protect an exposed or sensitive tooth and arrange an assessment before further damage occurs.
Emergency tooth extraction
When a tooth cannot be restored, an urgent assessment can establish the safest next step.
Root canal treatment
Treatment may help relieve pain and address infection inside a damaged tooth.
Loose implant crown or lost veneer
Careful assessment distinguishes a loose implant restoration, a moving implant and a detached veneer.
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