Seven Tooth Symptoms Worth Having Checked

Tooth pain rarely comes with a clear label. A dull ache, a sharp sensation when biting and sensitivity to cold can have different explanations. An examination is the only reliable way to decide whether a root canal is needed.

1. Temperature sensitivity that lingers

Brief sensitivity to a cold drink can be relatively common. Pain that continues long after the stimulus has gone, particularly if it is worsening, is worth discussing with a dentist.

2. Pain that interrupts sleep

A tooth that aches spontaneously or wakes you at night may require prompt attention. The intensity of pain does not reveal the exact cause, so do not rely on symptoms alone to decide on treatment.

3. Discomfort when biting or releasing pressure

This can occur with inflammation near a root, a high filling or a crack. Tell your dentist whether it hurts as you bite down or as you release your bite.

4. Swelling or a recurring spot on the gum

These changes can be associated with infection. A small gum spot that drains and then seems to disappear can still need dental investigation.

5. A tooth that darkens after an injury

After a knock, a change in colour may signal changes within the tooth. Injured teeth sometimes need repeated checks over time, even if they are initially comfortable.

6. Symptoms around an old root filling

New tenderness does not necessarily mean a previous treatment has failed, but it is a reason to examine the tooth and restoration. Learn more about retreatment.

7. Pain that comes and goes without an obvious trigger

Intermittent discomfort can still be important, particularly when it is becoming more frequent. Keep a note of what brings it on and how long it lasts.

When is help urgent?

Seek urgent dental advice for severe pain, significant swelling or an injury. Call 999 or attend A&E if breathing or swallowing becomes difficult. If you cannot obtain urgent dental care, NHS 111 can advise. Read our urgent tooth pain guide.