When a wisdom tooth doesn't have enough space to come through properly, it can get stuck against the bone or the tooth next to it. Left alone, this can lead to ongoing pain, swelling, or infection, which is why removal is often recommended.

Many jaws simply aren't big enough to fit a full set of wisdom teeth alongside everything else. When there's no room for them to sit properly, they can push against neighbouring teeth and gradually affect your bite or alignment.

When a wisdom tooth only partly breaks through the gum, it creates a flap of tissue where food and bacteria can easily get trapped. This often leads to recurring swelling and infection around the tooth, known as pericoronitis.

Sitting right at the back of the mouth, wisdom teeth are notoriously hard to reach with a toothbrush and floss, making them more prone to decay and gum disease. Once a problem takes hold there, removal is often the simplest long-term fix.

An impacted wisdom tooth can occasionally lead to a fluid-filled cyst forming around it, which may put pressure on nearby tooth roots and jawbone if it's not addressed. Removing the tooth early helps avoid this kind of damage further down the track.

Wisdom teeth don't always grow straight up. Sometimes they come through sideways or at an angle, pressing directly into the tooth next to it. This can cause discomfort and, over time, put the neighbouring tooth at risk too.