Not every impacted wisdom tooth needs removal. The decision depends on recurrent infection, damage to the neighbouring tooth, decay risk and cyst formation.
No. A wisdom tooth that causes no symptoms, does not press on its neighbour and can be kept clean may simply be monitored. Removal is indicated because a tooth is causing problems or clearly about to, not because it is impacted.
What impaction means
Wisdom teeth erupt late, and when there is not enough room at the back of the jaw they stay partly or fully covered by bone and gum. Fully buried teeth with no connection to the mouth are often silent. Partially erupted ones are the usual troublemakers: a pocket forms that cannot be cleaned, bacteria collect and repeated inflammation follows.
Findings that call for removal
- Recurrent gum infection with swelling, bad odour and difficulty opening the mouth.
- Decay on a surface that cannot be cleaned, on the wisdom tooth or the molar in front.
- A tooth tilted forward, pressing on or resorbing the neighbouring root.
- A cyst-like lesion around the crown on a radiograph.
- Space required for an orthodontic or prosthetic plan.
When monitoring is reasonable
A fully buried, symptom-free tooth with a healthy relationship to its neighbour can be watched, provided you attend regular check-ups, since position and surrounding tissues can change over years. A partially erupted tooth that cleans well and bites properly may also be kept.
How removal is planned
Imaging shows the position, root shape and, in the lower jaw, the proximity to the nerve canal. The procedure is done under local anaesthetic: a small incision, a little bone removal if needed, and often sectioning of the tooth. Sectioning is not a sign of difficulty; it protects bone and neighbouring tissue.
Afterwards
Swelling and limited opening for two or three days are expected. Cold packs on the first day, keeping the head raised and taking prescribed medication as directed all help. Avoid rinsing or sucking for the first 24 hours so the clot stays in place, and avoid smoking for several days.
If swelling increases after day three or pain worsens, arrange a check-up. See our pages on wisdom tooth pain, oral surgery and orthodontic treatment.
