4 Signs You Might Need a Root Canal in Dunedin

May 12, 2026
|

Has that 'zing' in your tooth that hits you with a cold drink turned into a dull and persistent ache? It's probably time to have your dentist take a look, especially if it's keeping you from your normal daily activities. It may indicate a tooth infection and the need for a root canal. Here's what you should know. 

The Signs and Symptoms of a Tooth Infection

Here are four telltale signs that your tooth is infected and needs root canal treatment in Dunedin.

Persistent and Deep Tooth Pain

If you've ever experienced a severe and constant toothache, you know that it's difficult to focus on anything else. 

Don't ignore this pain, waiting for it to go away on its own. A tooth infection will not resolve without treatment from your dentist, and it could spread to other teeth and other critical areas of your body if it's left untreated.

Lingering Sensitivity to Hot and Cold

Tooth sensitivity to temperature or sweets may indicate a tooth infection, especially when it lingers and persists.

If you experience tooth sensitivity to temperature that goes away on its own, this is actually a good time to visit your dentist. With an exam, your dentist may be able to spot tooth decay and treat it before it becomes a more significant problem, such as a tooth infection.

Gum Swelling, Pimple on the Gums, or Tooth Discolouration

Swollen gums or a white blister or pimple on the gums surrounding your compromised tooth may indicate an infection. If your tooth appears dark or discoloured, it may also be infected. 

Don't wait to treat the blister or pimple on your own; contact your emergency dentist in Dunedin right away for prompt treatment. 

Pain When Chewing or Applying Pressure

Consistent pain or an ache when you chew and eat food is also an indicator of an infected tooth. 

Talk to our team on (03) 477 8387 for prompt emergency dental care if you or a loved one is experiencing any of these symptoms.