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Toothache from an inflamed nerve (pulpitis)

Also called: Pulpitis, toothache, tooth nerve pain

Inflammation of the nerve inside a tooth, usually from a deep cavity or crack, causing throbbing pain, especially with hot or cold.

ReversibleBrief pain, can be fixed with a filling
IrreversibleLingering pain; needs root canal or removal

Symptoms

Common signs:

  • Throbbing toothache
  • Toothache or tooth sensitive to hot, cold, or sweets

Less common

  • Pain with hot or cold

When to get medical care

Call 911Face or neck swelling with fever or trouble breathing.
Get care todaySevere pain or swelling.
See a doctor soonAny toothache.

Causes

Cavities, cracks.

Does it spread or run in families?

  • It isn't contagious. You can't catch it from someone else.

Possible complications

Diagnosis

A dentist examines.

Tests

Tests, if needed:

  • Dental X-ray:

Treatment

See a dentist.

Self-care

  • Use pain relievers
  • Avoid very hot or cold food

Medicines

Medicines that may help:

MedicineHelps withGood to know
Pain relievers
Pain and swellingAsk first if you have kidney, stomach, or heart problems.

OwieClear doesn't give doses: follow the label or your healthcare professional. Medicine names here are examples, not a full list.

Prevention

To prevent:

  • Brush, floss, checkups

Which doctor treats this

  • Start with your dentist. Go to the ER for face swelling, fever, or trouble breathing.

Back to school, work, or sports

  • Most people can go back to school or work the same day or the next day.

Pregnancy and breastfeeding

  • If you're pregnant or planning to be, tell your prenatal provider about this condition.
  • Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
  • Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
  • Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.

Outlook

Treatable.

Getting ready for your visit

Bring a list of your symptoms and medicines.

What to bring

  • A list of your medicines and supplements
  • Notes on when symptoms started and what makes them better or worse

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Toothache from an inflamed nerve (pulpitis)

Sources

Last updated 2026-11-12.