5 Signs Your Wisdom Teeth May Be Impacted

Wisdom teeth usually come through between the ages of 17 and 25, and for a lot of people, they cause no trouble at all. But when there isn’t enough room in the jaw for them to come through properly, they can become impacted – stuck at an angle, partially covered by gum, or pressing against neighbouring teeth. Impacted wisdom teeth don’t always hurt straight away, which is part of why they’re easy to miss until they start causing problems.

Here are five signs worth paying attention to, and what they might mean.

1. Pain or Tenderness at the Back of the Jaw

This is usually the first thing people notice – a dull ache or sharper pain right at the back of the jaw, sometimes radiating toward the ear. It can come and go, which makes it tempting to ignore, but recurring pain in this area is one of the clearest signs something’s not right with a wisdom tooth.

2. Swelling or Redness Around the Gum

An impacted wisdom tooth can irritate the surrounding gum tissue, leading to visible swelling, redness, or tenderness when you touch the area. In some cases, a flap of gum partially covers the tooth, creating a pocket where food and bacteria can get trapped, which often makes the swelling worse over time.

3. Difficulty Opening Your Mouth Fully

If you’ve noticed your jaw feels stiff or you can’t open your mouth as wide as usual, particularly on one side, this can be a sign of inflammation around an impacted tooth affecting the surrounding muscles and tissue.

4. A Bad Taste or Odour Near the Back Teeth

Because impacted wisdom teeth are harder to clean properly and can trap food and bacteria underneath the gum, they’re a common cause of a persistent bad taste or smell that doesn’t go away with brushing.

5. Crowding or Shifting of Nearby Teeth

An impacted wisdom tooth pushing at an angle can gradually put pressure on the teeth next to it, sometimes contributing to crowding or shifting you’ll notice over months rather than days.

What Happens If It’s Left Untreated?

Not every impacted wisdom tooth needs to come out – some cause no symptoms and can simply be monitored. But when symptoms like the ones above are present, leaving it unaddressed can allow the irritation, swelling, or crowding to gradually worsen, and increases the chance of infection developing around the tooth.

Why Do Wisdom Teeth Become Impacted in the First Place?

It comes down to space. Jaws vary in size, and for many people, there simply isn’t enough room at the back of the mouth for a fourth molar to come through in proper alignment. This is a normal anatomical variation, not something anyone’s done wrong – it’s just a matter of whether your jaw has the space to accommodate them.

What to Do Next

If any of these signs sound familiar, the best next step is a proper dental check-up rather than waiting to see if it resolves on its own. Our team offers wisdom tooth removal in Townsville, and can assess whether your wisdom teeth need monitoring, treatment, or removal based on your individual situation.

Frequently Asked Questions

Can an impacted wisdom tooth heal on its own?

The position of the tooth itself won’t change without treatment, but mild symptoms can settle temporarily. If you’re having recurring pain, swelling, or other symptoms, it’s worth having it assessed rather than waiting.

Is it normal for only one wisdom tooth to be impacted?

Yes, it’s common for impaction to affect one or two teeth rather than all four, since jaw space and the angle each tooth grows at can vary from side to side.

How is an impacted wisdom tooth diagnosed?

Your dentist will examine the area and may recommend an x-ray to see the exact position of the tooth and how it’s sitting relative to your jaw and neighbouring teeth.