Causes of Wisdom Tooth Pain
Wisdom tooth pain has several mechanisms, and treatment depends on which one applies.
Pericoronitis — inflammation under the gum flap
The most common cause: food and bacteria enter the pocket under the gum flap where brushing cannot reach. The swollen flap is then bitten by the opposing tooth, creating a vicious circle.
Eruption pressure and lack of space
An erupting tooth creates pressure in the bone and against the neighbouring tooth, felt as a dull, diffuse ache. Without space it may remain horizontal, angled or inverted.
Decay and damage to the neighbouring tooth
Its position at the very back encourages decay both in itself and on the back surface of the molar in front — a silent problem that can even cause root resorption in that tooth.
Cysts and rarer complications
Cysts can develop around fully impacted teeth over the years, usually without symptoms, causing bone loss and displacement as they grow.
What Is Done in the Acute Phase
Immediate surgical extraction during severe inflammation is not appropriate; the priority is controlling the infection.
Why not extract immediately?
Local anaesthesia works less effectively in inflamed, acidic tissue, and surgical trauma can spread the infection. Extraction after control is safer and more comfortable.
What is done in the emergency session
- Cleaning the area and flushing debris from the pocket
- Drainage if required
- Arranging medication for pain and inflammation
- Assessing the tooth position with a panoramic X-ray
- Addressing trauma from the opposing tooth if present
- Planning the right time for surgical extraction
What you can do at home
Rinse gently with warm salt water several times a day and apply a cold compress. Do not chew on that side, avoid small hard foods, and never apply heat.
Does Every Wisdom Tooth Need Removing?
No — this is one of the most misunderstood topics. The decision depends on position, cleanability and the problems it causes.
Wisdom teeth that can be kept
A fully erupted, cleanable wisdom tooth in proper occlusion causing no symptoms does not need removing; it contributes to chewing and may serve as a bridge abutment later.
When extraction is indicated
- Recurrent pericoronitis
- Causing decay or root resorption in the neighbouring molar
- Persistent decay due to an uncleanable position
- Cyst development around the tooth
- Creating space before orthodontic treatment
- The opposing tooth repeatedly traumatising the gum
The role of radiographs in the decision
A panoramic view shows the angle, roots, relation to the neighbouring tooth and, critically, the distance to the mandibular nerve, which sometimes runs very close to lower wisdom tooth roots.
Surgical Extraction and Recovery
Removing an impacted tooth differs from a routine extraction, and recovery has its own pattern.
How the procedure is performed
Performed under local anaesthesia: a small incision is made, overlying bone removed if needed, and the tooth taken out whole or sectioned. Sectioning reduces trauma to the surrounding bone.
The first 24 hours
Apply pressure on gauze for 30 minutes. For 24 hours do not rinse, spit, use straws or smoke. Apply ice 15 minutes on, 15 off, eat lukewarm soft food and keep your head raised.
Swelling and healing
Swelling usually peaks on day two or three and then subsides — this is expected. Increasing pain after day three with a bad odour suggests dry socket and needs review.
