Dental question about taxonomy:symptom:tooth-pain
Tooth pain can come from decay, pulp inflammation, a crack, gum disease, trauma, or an abscess and needs a cause-based examination.
The short answer
Toothache is a symptom rather than a diagnosis. A dentist identifies whether the problem is in enamel, dentin, the pulp, the root-supporting tissues, or the gums before selecting treatment.

What is the direct answer?
What does this question mean?
Sharp pain with cold can involve exposed dentin, while lingering heat pain can indicate pulp inflammation. Pain on biting may relate to a crack or tissues around the root, and swelling can indicate infection.
What can you do next?
Keep the area clean, avoid the trigger, and take an appropriate labelled pain medicine if you can use it. Do not place chemicals inside the tooth or delay care because pain briefly improves.
When should you seek dental care?
Arrange prompt dental care for persistent or severe pain, night pain, swelling, fever, pus, trauma, or a broken tooth. Emergency assessment is needed for breathing or swallowing difficulty.
What should you ask the dentist?
Ask which structure is causing the pain, what tests were performed, and whether the recommended option preserves the tooth or replaces it.
Frequently asked questions
Why does cold hurt one tooth?
Cold can stimulate exposed dentin or an inflamed pulp, but examination is needed to distinguish them.
Can a cracked tooth heal itself?
A crack in tooth structure does not biologically repair itself and may need protective treatment.
