Wisdom teeth are the last teeth to come through at the back of the mouth.

They usually appear between the ages of 17 and 25.

Some people have no problems with their wisdom teeth. Others may have pain, swelling or infection.

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Does everyone get wisdom teeth?

No.

Some people have all four wisdom teeth, some have fewer, and some people do not develop them at all.

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What is an impacted wisdom tooth?

Sometimes there is not enough room in the mouth for a wisdom tooth to come through properly.

When this happens, the tooth can become stuck against the tooth in front of it or stay partly under the gum. This is called impaction.

An impacted wisdom tooth may grow at an angle and be difficult to clean.

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What problems can wisdom teeth cause?

When wisdom teeth are coming through, you might notice:

• Sore, swollen or tender gums at the back of the mouth.
• Difficulty opening your mouth fully.
• Pain when chewing.
• A bad taste or bad breath.

Partly erupted wisdom teeth can trap food and plaque. This can lead to an infection of the gum around the tooth, called pericoronitis.

You can help reduce the risk by:

• Cleaning the area carefully with a small-headed or single-tufted toothbrush.
• Using warm saltwater mouth rinses.
• Seeing your dentist if the area becomes painful or swollen.

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Will I need my wisdom teeth removed?

Not always.

Wisdom teeth that are healthy, fully through, and easy to clean usually do not need to be removed.

A dentist may suggest removal if:

• There is not enough room for the tooth to come through.
• The tooth is causing repeated pain or infections.
• The tooth is partly through and has decay.
• Food is getting trapped and damaging the tooth in front.

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Are wisdom teeth difficult to remove?

This depends on their position and shape.

• Upper wisdom teeth are often easier to remove.
• Lower wisdom teeth are more likely to be impacted.

Many wisdom teeth can be removed by your dentist using a local anaesthetic.

If the tooth is difficult to remove, or the roots are close to a nerve, you may be referred to a specialist. This helps reduce the risk of nerve damage.

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After wisdom tooth removal

It is normal to have some swelling and discomfort for a few days.

You should:

• Rest and avoid heavy exercise for the first 24 hours.
• Avoid smoking and alcohol for at least 24 hours.
• Take pain relief as advised.
• After 24 hours, rinse gently with warm salt water to keep the area clean.

Contact your dentist if pain gets worse after a few days, you have bad swelling, or you notice a bad taste or smell from the area.