A toothache is your tooth or gum telling you something is wrong — most often a deep cavity, an inflamed nerve, a cracked tooth or an infection. Rinse with warm salt water, floss gently around the tooth, and call a dentist the same day. Facial swelling, fever, or trouble swallowing or breathing means the emergency room, now.
What usually causes a toothache
Tooth pain has a handful of common sources, and the kind of pain often hints at which one you're dealing with:
- A deep cavity. Decay that reaches the inner layers of the tooth causes sensitivity to sweets, cold or heat, and eventually a lingering ache.
- An inflamed or infected nerve (pulp). Pain that throbs, wakes you up at night, or lasts long after the cold drink is gone often points here.
- A cracked or broken tooth. Sharp pain when you bite down — and then release — is a classic sign of a crack.
- A gum problem or abscess. A swollen, tender area of gum, a "pimple" on the gum or a bad taste can signal an infection at the root or in the gum.
- Food trapped between teeth. Sometimes a popcorn hull or a seed wedged under the gum is the whole story.
- Grinding or clenching. A dull ache in several teeth, especially in the morning, can come from pressure rather than decay.
- Pain that isn't from the tooth. Sinus congestion can make upper back teeth ache, and jaw joint problems can feel like tooth pain.
Only an exam — and usually an X-ray — tells which of these is behind your pain. That's why the goal at home is relief and protection, not a diagnosis.
What to do right now
These steps are safe for most adults while you arrange to be seen:
- Rinse with warm salt water. It cleans the area and can calm irritated gum tissue.
- Floss gently around the painful tooth. If something is trapped, removing it may ease the pain right away.
- Use a cold compress on the outside of your cheek for short periods to reduce swelling and dull the ache.
- Take an over-the-counter pain reliever only as directed on the label, and only if it's safe for you given your health and other medications. If you're unsure, ask a pharmacist.
- Keep your head elevated when you lie down. Lying flat can make throbbing pain feel worse.
- Chew on the other side and avoid very hot, very cold or sugary foods until you're seen.
- Call a dentist today. A toothache rarely fixes itself, and early care usually means simpler treatment.
What not to do
- Don't place a pain pill directly on the gum or tooth. It can burn the tissue and doesn't treat the cause.
- Don't apply heat to the outside of your face if there's any swelling — it can make an infection spread.
- Don't try to pop or drain a swelling on your gum yourself.
- Don't wait it out because the pain stopped. When a severe ache suddenly goes quiet, the nerve may have died — but the infection can still be there and keep growing.
When a toothache is an emergency
Not every toothache means the emergency room, but some situations can't wait. Use this as a guide:
Go to the emergency room or call 911 if you have:
- Swelling in your face, jaw or neck that is spreading
- A high fever along with tooth pain
- Difficulty swallowing or breathing
- An injury to the face or jaw beyond the teeth
Call a dentist for a same-day visit if you have:
- Severe or throbbing pain that over-the-counter relief doesn't control
- A swollen, tender area on the gum or a gum "pimple"
- A broken or cracked tooth, especially with sharp pain on biting
- Pain that keeps you up at night
Book a prompt appointment if you have:
- Sensitivity that lingers for a few seconds after hot or cold
- A mild ache that comes and goes
- Pain when food gets stuck in the same spot
For anything in the middle group, our emergency dental care page explains what happens at an urgent visit. If you see a swollen gum, read more about gum swelling and tooth abscesses.
How a toothache is usually treated
Once the cause is clear, treatment follows the problem — not the pain level:
- A cavity that hasn't reached the nerve is often repaired with a filling. If the tooth has lost a lot of structure, a crown may protect it better; our guide on crown or filling explains the difference.
- An inflamed or infected nerve is commonly treated with a root canal, which removes the damaged pulp and saves the natural tooth. If you're unsure whether your symptoms fit, see the signs you may need a root canal.
- A crack may need bonding, a crown or, if it reaches the root, other options your dentist will explain.
- A gum infection is cleaned and treated at its source, sometimes with a periodontist involved.
- A tooth that can't be saved may need to be removed, followed by a conversation about replacing it.
Your dentist confirms the cause before recommending anything. At Art Dental Studio, the endodontist (the root canal specialist) and the periodontist (the gum specialist) work in the same clinic, so if your toothache needs a specialist, you stay with the team that already has your records.
Questions to ask at your visit
- What is causing my pain — decay, the nerve, a crack or the gum?
- Can this tooth be saved, and what are my options?
- Is there an infection, and does it need treatment today?
- What should I do if the pain or swelling gets worse tonight?
- Do any of my other teeth show early signs of the same problem?
Where to be seen in South Florida
Art Dental Studio offers same-day emergency appointments whenever possible at three locations, with care in English and Spanish:
When you call, describe where the pain is, how long you've had it, and whether there's any swelling. That helps the team decide how soon you need to be seen.
The bottom line
A toothache is a signal, and the sooner it's read, the simpler the fix usually is. Rinse, floss gently, use a cold compress, and call a dentist the same day. Spreading swelling, fever, or trouble swallowing or breathing is a medical emergency — go to the emergency room. And don't take sudden relief as a sign that the problem is gone.
Art Dental Studio has three South Florida locations — Miami / Hialeah, Kendall and Cooper City — with care in English and Spanish. General dentistry, orthodontics, endodontics and periodontics work under one roof, in a clinic directed by Dr. Vivian Menendez.
Frequently asked questions
What should I do right away for a toothache?
Rinse with warm salt water, floss gently around the tooth to remove anything trapped, and use a cold compress on the outside of your cheek. An over-the-counter pain reliever taken only as directed on the label can help while you wait. Call a dentist the same day, because a toothache rarely resolves on its own.
When is a toothache an emergency?
Go to the emergency room or call 911 if you have spreading swelling in your face, jaw or neck, a high fever, or difficulty swallowing or breathing. Severe throbbing pain, a swollen gum or a broken tooth calls for a same-day dental visit. Milder, intermittent sensitivity still deserves a prompt appointment.
My toothache stopped on its own. Do I still need a dentist?
Yes. When a strong toothache suddenly goes quiet, the nerve inside the tooth may have died, but an infection can remain and keep growing without pain. A dentist can check the tooth and confirm whether it needs treatment.
