How do you tell if a tooth is actually cracked?

Cracks are notoriously hard to see — even on x-rays. We use magnification, a bite test, and sometimes a special dye to find them. The pattern of pain (sharp on biting, normal otherwise) is often the biggest clue.

Can a cracked tooth be saved?

Most cracked teeth can be saved if they are treated before the crack reaches the nerve or the root. The repair is usually a crown to hold the tooth together. Deep cracks may need a root canal first, and a few cannot be saved.

How soon do I need to be seen?

Within a few days, ideally — sooner if there is swelling or constant pain. A small crack that is ignored often turns into a bigger problem in weeks to months.

Will a filling fix it?

Sometimes, for very small cracks. More often, a cracked tooth needs a crown or an onlay so the tooth is held together when you chew. We will talk you through which option fits your situation.

I grind my teeth at night — could that be why?

Very likely. Once we have repaired the tooth, we will usually recommend a custom night guard to protect the other teeth from cracking the same way.

Severe pain, swelling, or facial trauma?

Call us now — we offer same-day appointments for urgent dental problems.

Call (619) 265-2262

Symptom guide

Cracked tooth — what to do

A cracked tooth does not always look dramatic. Sharp pain on biting, or pain that comes and goes with temperature, is often the first sign. Catching it early usually means a smaller repair.

Request a same-day appointment Or call (619) 265-2262

Hablamos español. Nói tiếng Việt.

This is not a diagnosis. This page describes common causes and general self-care suggestions. It cannot replace an in-person exam. If you are unsure, please call us — we will help you figure out what to do.

Possible causes

Common reasons behind cracked tooth. Only an exam can confirm the cause for you.

✓Biting down on something hard (ice, popcorn kernels, hard candy)
✓Clenching or grinding teeth, often at night
✓A large old filling that no longer supports the surrounding tooth
✓A blow to the mouth from sports or a fall
✓Years of normal wear on a tooth that has been treated before

When to come in — or call right away

Any of the following deserves prompt evaluation. Call us today.

A visible split that runs all the way down the tooth
A piece of the tooth that comes off in your hand
Severe, lingering pain to hot or cold
Swelling around the tooth or in the gum next to it
Bleeding from inside the tooth that will not stop

Call (619) 265-2262

What you can try right now

These are general suggestions, not medical advice. Follow the directions on any product you use, and ask your dentist or doctor if you are unsure.

•Stop chewing on that side until you are seen.
•Rinse with warm water to keep the area clean.
•If a piece came off, save it in a small container — bring it to your appointment.
•Take an over-the-counter pain reliever as directed on the package.
•A cold compress on the cheek can help if there is swelling.

How KinDentists treats cracked tooth

Treatment depends on the underlying cause — here are the services that most often resolve this for our patients.

Urgent Care

Emergency Dental Care

Urgent dental care for tooth pain, broken teeth, and dental emergencies. Same-day appointments available.

Restorative Care

Crowns & Cosmetic Restorations

Dental crowns, bridges, and restorative treatments to repair damaged teeth and restore function and appearance.

Preventive Care

Fillings & Preventive Care

Cavity fillings and preventive dental treatments to protect and preserve your natural teeth.

You might also have

Tooth Pain→Broken Tooth→Chipped Tooth→

Cracked tooth near you

See how we help with cracked tooth in your San Diego neighborhood — directions, transit, and same-day options.

Cracked tooth in North Park→

Common questions

Cracked Tooth FAQ

Other common symptoms

Tooth pain Bleeding gums Chipped tooth Sensitive teeth Jaw pain Wisdom tooth pain Abscess Broken tooth Bleeding gums Swollen jaw Bad breath Dry mouth Gum recession Loose tooth Canker sores Take the symptom triage quiz →

Not sure what to do next?

Call us — we will help you decide whether you need to be seen today or whether it can wait for a routine visit. Hablamos español. Nói tiếng Việt.

Call (619) 265-2262 Request a same-day appointment

Cracked tooth — what to do

Possible causes

When to come in — or call right away

What you can try right now

How KinDentists treats cracked tooth

Emergency Dental Care

Crowns & Cosmetic Restorations

Fillings & Preventive Care

You might also have

Cracked tooth near you

Cracked Tooth FAQ

How do you tell if a tooth is actually cracked?+

Can a cracked tooth be saved?+

How soon do I need to be seen?+

Will a filling fix it?+

I grind my teeth at night — could that be why?+

Other common symptoms

Not sure what to do next?

Cracked tooth — what to do

Possible causes

When to come in — or call right away

What you can try right now

How KinDentists treats cracked tooth

Emergency Dental Care

Crowns & Cosmetic Restorations

Fillings & Preventive Care

You might also have

Cracked tooth near you

Cracked Tooth FAQ

How do you tell if a tooth is actually cracked?+

Can a cracked tooth be saved?+

How soon do I need to be seen?+

Will a filling fix it?+

I grind my teeth at night — could that be why?+

Other common symptoms

Not sure what to do next?