Tooth pain is never fun, but the type of pain you're feeling can tell you (and your dentist) a surprising amount about what's going on. While none of this replaces an actual examination, understanding the common patterns can help you judge how urgently you need to be seen.
Sensitivity to hot and cold
A short, sharp twinge when you eat or drink something hot, cold, or sweet, that fades quickly once the trigger is gone, often points to sensitivity. This can come from worn enamel, exposed roots from gum recession, or a small area of early decay. If it's brief and occasional, it's worth mentioning at your next visit but usually isn't an emergency.
Lingering pain after hot or cold
If that same hot or cold sensation lingers for many seconds or even minutes after the trigger is removed, that's a more significant sign. Pain that hangs around can indicate the nerve inside the tooth is inflamed, which sometimes means decay has reached deeper than the surface. This one is worth getting looked at sooner rather than later.
Dull, constant ache or pressure
A persistent dull ache or a feeling of pressure, particularly if it's worse when you bite down or lie down at night, can suggest inflammation or infection around the root of a tooth. Throbbing pain that keeps you awake is a classic sign of something that needs prompt attention rather than waiting to see if it passes.
Sharp pain when biting
A sudden sharp pain when you bite on something can point to a cracked tooth or a filling that's come loose or is failing. Cracks can be tricky because they don't always show up obviously, and the pain can come and go, which makes people delay getting it checked, often until it worsens.
When pain suddenly stops
Here's the counterintuitive one: if you've had significant tooth pain that suddenly disappears entirely, that's not necessarily good news. Sometimes it means the nerve inside the tooth has died, and an infection may still be developing quietly underneath. Don't take a sudden vanishing act as the all-clear, it's still worth getting checked.
What to do in the meantime
For manageable pain while you wait for an appointment, over-the-counter pain relief taken as directed, avoiding very hot, cold, or hard foods on that side, and keeping the area clean can all help. If you have facial swelling, a fever, or pain you can't control, treat it as urgent. You can read more on our Dental Emergency page.