What To Do If You Lose a Filling or Crown

If you lose a filling or crown, rinse your mouth gently, save the crown if you still have it, avoid chewing on that side, and schedule a dental evaluation. Even if the tooth does not hurt right away, a lost restoration can leave the tooth vulnerable to sensitivity, cracks, infection, and further decay.

At Bailey Family Dental in Whittier, we can evaluate the tooth, check whether decay or fracture caused the filling or crown to come loose, and recommend the right way to restore and protect the tooth. If the tooth is painful, sharp, swollen, or difficult to chew on, our Emergency Dentist page explains when prompt care may be needed.

What Should You Do If a Filling or Crown Falls Out?

Why fillings and crowns fall out

Dental restorations are durable, but they do not last forever. A filling or crown may come loose because of normal wear and tear, tooth decay forming underneath the restoration, trauma to the tooth, or repeated pressure from chewing and teeth grinding. Sticky or hard foods can also pull a restoration loose.

When a filling or crown falls out, the tooth underneath is often exposed and less protected. This can make the area more sensitive and increase the risk of cracks, infection, or additional decay. Food may also start catching around the damaged area. If that happens, our Food Stuck Between Teeth blog may be helpful. A dentist can determine whether the restoration can be replaced, re-cemented, or whether the tooth needs a new restoration. In some cases, dental X-rays are needed to check for decay under the old filling or crown.

What to do right away

If a filling or crown falls out, patients should rinse their mouth gently with warm water to keep the area clean. If the crown comes out intact, it is a good idea to save it and bring it to the dental appointment. In some cases, the dentist may be able to re-cement it.

Patients should also avoid chewing on the affected side of the mouth until the tooth is treated. If the tooth is sensitive, avoiding very hot, cold, or sweet foods can help minimize discomfort. Over-the-counter dental cement may offer a temporary solution in some cases, but it is not a substitute for professional care.

If you have lost a filling or crown in Whittier, this may require prompt emergency dental care, especially if you have pain, sensitivity, or a sharp edge on the tooth.

In our office, we often see patients wait because the tooth does not hurt right away. A lost filling or crown can still leave the tooth exposed, so we usually recommend having it checked before chewing causes more damage.

Signs the tooth needs prompt dental care

Some lost fillings or crowns cause little discomfort at first, but that does not mean the problem can wait. Patients should schedule a dental visit as soon as possible, especially if they notice:

Sharp tooth pain or pain when biting down, sensitivity to temperature, a rough or broken edge on the tooth, swelling around the gumline, or visible damage to the tooth structure. These symptoms may indicate that the tooth has become weakened or that decay has spread beneath the old restoration.

How a general dentist restores the tooth

The right treatment depends on the condition of the tooth and the type of restoration that was lost. If a small filling came out and the tooth is still healthy enough, the dentist may place a new filling. If a crown came loose but is still in good condition, the dentist may be able to re-cement it.

If the tooth has additional decay or structural damage, a new dental crown may be needed. If the damage is extensive, our Large Cavity: Filling vs. Crown vs. Root Canal page explains how treatment options may change as more tooth structure is lost. In more advanced cases, the dentist may recommend an inlay, onlay, or root canal treatment before restoring the tooth. Early treatment often keeps the repair simpler and helps preserve more of the natural tooth.

When a crown comes off, we check why it came loose before simply putting it back on. If decay, bite pressure, or a fracture caused the problem, re-cementing the crown without addressing the cause may not last.

Why delaying treatment can make the problem worse

A lost filling or crown is not just a cosmetic problem. Without protection, the tooth can become more fragile and more likely to fracture. If part of the tooth has broken, cracked, or starts acting like a cracked tooth, our Broken or Cracked Tooth Repair page explains how damaged teeth may be evaluated and restored. Food and bacteria can collect in the exposed area, increasing the risk of infection and deeper decay.

Delaying treatment may turn a relatively simple repair into a more involved procedure. What could have been treated with a replacement filling or crown may eventually require root canal therapy or even extraction if the damage becomes severe.

Reviewed by Brian Choi, DMD
General Dentist at Bailey Family Dental in Whittier, CA
Updated: June 2026