Wisdom teeth (third molars) usually come through in the late teens or twenties. Many people do not have enough room, so wisdom teeth can become impacted: stuck under the gum or bone or angled against the tooth in front.
Common problems
- Infection and swelling of the gum over a partly erupted tooth (pericoronitis)
- Decay in the wisdom tooth or the tooth in front
- Pain, jaw stiffness or difficulty opening the mouth
- Cysts or damage to neighbouring teeth, seen on X-ray
Some impacted wisdom teeth cause no problems and can be monitored.

When removal may be advised
Your dentist will examine the area and take an OPG X-ray. Removal may be recommended if a wisdom tooth is causing repeated infection, decay or damage. Spreading infection with facial swelling needs prompt attention.
The procedure
Removal is done under local anaesthetic, and can be simple or surgical depending on the tooth’s position. Some cases are referred to an oral surgeon.
Risks and recovery
Swelling, pain and jaw stiffness are common for several days. Risks include dry socket, infection, and temporary or rarely permanent numbness of the lip, chin or tongue. Read about extraction recovery.
Read more about wisdom teeth removal at North Ryde Dentistry.
Related articles
- How Long Does It Take to Recover From a Tooth Extraction?
- Wisdom Teeth Removal Cost: What Affects the Fee
- Tooth Extraction Cost: Three Factors That Affect the Price
This article is general information only and does not replace advice from your own dentist. Whether a treatment is suitable for you can only be decided after an examination. All dental treatment carries risks, and results vary from person to person. Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.