Crown or Filling Fell Out? What to Do Right Away

One minute you're eating and the next there's a hard little piece in your mouth that shouldn't be there. A crown or filling coming loose is one of the more common reasons GTA patients call us outside of a scheduled visit. The good news is that it's rarely a true emergency if you know what to do in the first day or two.

Is a Lost Crown or Filling a Dental Emergency?

Not always, but it should always get prompt attention. The tooth underneath a crown or filling is more vulnerable than the enamel around it. Once it's exposed, it's open to air, temperature changes, and the bacteria in your saliva, which can lead to sensitivity, a new cavity, or infection if it sits too long.

Call us the same day if you also have significant pain, swelling in your face or gums, bleeding that won't stop, or a piece of the tooth itself came away with the crown. Those signs point to something more than a loose restoration.

What to Do Right Away

The first hour matters less than the first day or two. Here's how to protect the tooth until you can get into the chair.

If Your Filling Fell Out

• Rinse gently with warm water to clear away any debris.

• Avoid chewing on that side of your mouth.

• If the edge feels sharp or is cutting your tongue or cheek, cover it with a small piece of sugar-free gum or dental wax from the pharmacy.

• Keep brushing normally, just go softly around the exposed spot.

If Your Crown Fell Off

• Find the crown if you can and rinse it off gently. Don't throw it out, it can often be recemented.

• Check the inside of the crown for a small tooth-shaped indent, that's where it sits over your tooth.

• You can try slipping the crown back over the tooth using a dab of denture adhesive or temporary dental cement from the pharmacy, just to hold it in place until your appointment. Never use superglue or household adhesive.

• If it won't stay in place, keep the crown in a small container and bring it with you. In many cases we can simply recement the original crown instead of making a new one, which saves you time.

A crown that comes loose on its own is different from one that's knocked off along with a broken piece of tooth. If that happens to you, treat it the same way you'd treat a cracked tooth emergency and call us right away.

When to Call an Emergency Dentist vs. When It Can Wait

Use this as a quick guide, but when in doubt, call us. We would rather take a look and tell you it can wait than have you manage a real problem at home.

Situation	How Urgent	What to Do
Filling fell out, no pain	See us within 1-2 days	Keep the area clean, avoid chewing on that side
Crown fell off, tooth feels normal	See us within 1-2 days	Store the crown safely, try a temporary reseat
Sharp or throbbing pain	Same day	Call us right away, may mean the nerve is exposed
Swelling in the gums or face	Same day	Call us right away, possible sign of infection
Piece of tooth broke off too	Same day	Call us right away, the tooth needs protecting
Bleeding that doesn't stop after 10 minutes	Same day	Call us right away

What Not to Do

• Don't use superglue or household adhesives. They're not safe for your mouth and can damage the tooth further.

• Don't leave a crown off for weeks hoping it'll be fine. Neighbouring teeth can shift into the gap.

• Don't ignore ongoing sensitivity to hot or cold drinks. That's often a sign the nerve is more exposed than it should be.

• Don't try to file down a sharp edge yourself. Dental wax is a safer temporary fix.

What Happens at Your Visit

When you come in, we'll check whether your original crown or filling can be reused or whether the tooth needs a new one. Recementing an intact crown is usually a short appointment, often the same day you call. If the tooth has decayed underneath or the crown no longer fits well, we'll walk you through your options, including what getting a new crown involves or what a replacement filling costs in Toronto.

How to Avoid This Happening Again

Crowns and fillings are strong, but they're not indestructible. Chewing ice, hard candy, or using your teeth to open packages is the most common way restorations come loose. Grinding your teeth at night puts extra pressure on old fillings and crowns too, and a properly fitted night guard can extend their life by years. Keeping up with regular checkups also means we catch a crown or filling that's starting to wear before it fails on its own.

Frequently Asked Questions

Is it painful when a crown or filling falls out?

Often not right away. The tooth underneath can feel sensitive to hot, cold, or pressure, but it isn't always painful. Pain usually means the nerve is more exposed or an infection is starting, which is your cue to call us the same day.

How long can I wait before seeing a dentist?

Ideally within 24 to 48 hours. The tooth is more vulnerable without its covering, and waiting longer raises the risk of a new cavity, a cracked tooth, or nearby teeth shifting out of place.

Can the same crown be put back on?

Often, yes. If the crown is intact and simply came loose, we can usually clean it and recement it in the same visit. If it's cracked, worn out, or no longer fits well, we'll recommend a new one.

Is this considered a dental emergency?

It's an urgent situation more often than a true emergency. If you also have pain, swelling, bleeding, or a broken piece of tooth, treat it as an emergency and call us right away.

Dealt with a crown or filling that's come loose? Don't wait it out and risk a bigger repair. Book an emergency appointment with Lornview Dental and we'll get you back to normal fast.