Lost Crown or Filling

A dental crown or filling can loosen, break, or fall out because of recurring decay, wear, biting pressure, trauma, or changes in the tooth beneath the restoration. Although losing a restoration is not always a medical emergency, the affected tooth should be evaluated promptly.

Without its crown or filling, the tooth may become sensitive, painful, structurally weakened, or vulnerable to additional damage. A lost restoration can also leave sharp edges that irritate the tongue or cheek.

Knowing how to protect the tooth, what not to place in the area, and when to seek urgent care can help reduce complications until a dentist can examine it.

What Is the Difference Between a Crown and a Filling?

A dental filling replaces a portion of tooth structure removed because of decay or damage. It is placed directly into the prepared area and shaped to restore the tooth.

A dental crown covers most or all of the visible portion of a tooth. Crowns are commonly used to protect teeth that are extensively damaged, weakened, heavily restored, or treated with root canal therapy.

When either restoration comes loose or falls out, the underlying tooth may no longer have the protection or support the restoration was designed to provide.

Why Dental Crowns and Fillings Fall Out

A restoration may fail because of a problem with the restoration itself, the tooth beneath it, or the forces placed on the tooth.

Common causes include:

• New decay developing around or beneath the restoration
• Wear or breakdown of the dental material
• A weakened or fractured tooth
• Biting hard foods, ice, or nonfood objects
• Teeth grinding or clenching
• Trauma to the mouth or jaw
• A crown becoming loose as dental cement deteriorates
• A large filling no longer having enough tooth structure for support
• A temporary restoration reaching the end of its intended use
• Changes in the tooth after previous dental treatment

A dentist must examine the tooth to determine whether the existing restoration can be replaced or whether the tooth requires additional treatment.

Signs That a Crown or Filling Has Come Loose

A restoration may become loose before it falls out completely.

Possible warning signs include:

• Movement when chewing or touching the restoration
• A change in the way the teeth come together
• Food repeatedly collecting around the tooth
• New sensitivity to hot, cold, sweets, or pressure
• A rough edge or unusual space around the restoration
• Pain when biting or releasing pressure
• A bad taste or odor near the affected tooth
• The crown or filling coming out in one piece
• A visible opening, hole, or exposed portion of tooth

Do not continue chewing normally on a restoration that feels loose. Additional pressure may cause it to detach, fracture, or damage the remaining tooth.

Is a Lost Crown or Filling a Dental Emergency?

A lost crown or filling generally requires prompt dental care, but the degree of urgency depends on the condition of the tooth and the symptoms involved.

Contact a dentist as soon as possible when:

• A crown or filling has completely fallen out
• The tooth is painful or highly sensitive
• A large portion of the tooth is exposed
• The tooth has a sharp or broken edge
• The restoration became loose after an injury
• The tooth hurts when biting
• The remaining tooth appears cracked or fractured
• The crown covered a tooth that previously received root canal treatment
• You cannot bite normally because the restoration is displaced

A small lost filling without pain may not require an emergency-room visit, but it should not be ignored or postponed indefinitely.

When a Lost Restoration Needs Urgent Care

Seek urgent dental evaluation when a lost crown or filling is accompanied by:

• Severe or rapidly worsening tooth pain
• Swelling of the gums, jaw, cheek, or face
• Pus, drainage, or a persistent bad taste
• Fever or feeling generally unwell
• Bleeding that does not stop with gentle pressure
• A visible crack extending into the tooth
• A tooth that has become loose or displaced
• Trauma involving the mouth, face, or jaw
• Difficulty opening the mouth normally

These symptoms may indicate infection, extensive structural damage, or another condition requiring more immediate treatment.

Call 911 or seek emergency medical care for difficulty breathing or swallowing, rapidly increasing facial or neck swelling, severe facial trauma, uncontrolled bleeding, or loss of consciousness.

What to Do When a Crown Falls Out

When a crown comes out, locate it and protect both the crown and the underlying tooth.

Take the following steps:

• Remove the crown from your mouth so it is not swallowed or inhaled
• Rinse the crown gently with water
• Place it in a clean container
• Do not scrape away material from inside the crown
• Rinse your mouth gently with warm water
• Avoid chewing on the affected side
• Contact the dental office promptly
• Bring the crown to the appointment

The dentist will determine whether the crown can be cleaned and recemented or whether a new restoration is necessary.

Should You Put a Crown Back on Yourself?

Do not permanently reattach a crown with household glue, super glue, nail adhesive, epoxy, or another non-dental product. These substances can damage the tooth, irritate oral tissue, contaminate the crown, and make professional treatment more difficult.

A dentist may advise some patients to use a temporary dental cement from a pharmacy for short-term protection. This is not appropriate in every situation, particularly when the tooth or crown is fractured, the crown does not fit correctly, or there is a risk of swallowing it.

Contact the dental office before attempting to place the crown back onto the tooth. Never force it into position.

What to Do When a Filling Falls Out

A missing filling may leave a visible opening or rough area in the tooth. The tooth may become sensitive to air, temperature, pressure, or sweet foods.

Until the tooth can be examined:

• Rinse gently with warm water to remove loose debris
• Brush carefully to keep the area clean
• Avoid chewing on the affected side
• Choose softer foods
• Avoid very hot, cold, sticky, or sugary foods
• Do not place sharp objects into the opening
• Contact the dental office for an appointment

Do not attempt to replace the filling with household materials. Temporary dental filling products may provide limited short-term coverage when used according to their instructions, but they do not replace professional diagnosis or treatment.

How to Protect the Exposed Tooth

A tooth that has lost a crown or filling may be more vulnerable to temperature sensitivity, food impaction, fracture, and decay.

To protect the area:

• Chew on the opposite side of the mouth
• Avoid hard, crunchy, chewy, or sticky foods
• Keep the tooth clean with gentle brushing
• Rinse after eating when food collects around the tooth
• Avoid repeatedly touching the area with your tongue or fingers
• Do not bite directly on the exposed tooth
• Keep any recovered crown or filling in a clean container

A tooth that feels fragile, cracked, or painful should receive prompt evaluation.

What to Do for Sensitivity or Discomfort

Sensitivity is common when a restoration falls out because dentin or another vulnerable portion of the tooth may be exposed.

Temporary measures may include:

• Avoiding very hot or cold foods and drinks
• Avoiding sugary or acidic foods
• Eating softer foods at moderate temperatures
• Using toothpaste intended for sensitive teeth
• Following label instructions for over-the-counter medication you normally use safely
• Keeping the area clean without brushing aggressively

Temporary symptom relief does not mean the tooth has repaired itself. The missing restoration and the condition beneath it still require professional evaluation.

What Not to Do After Losing a Crown or Filling

Avoid actions that may damage the tooth or complicate treatment.

• Do not use household glue or permanent adhesive
• Do not force a crown back onto the tooth
• Do not chew hard or sticky foods on the affected side
• Do not place aspirin directly against the tooth or gum
• Do not use gum, wax, putty, or non-dental materials as a permanent repair
• Do not scrape or drill the crown, filling, or tooth
• Do not ignore increasing pain, swelling, or drainage
• Do not continue wearing a crown that feels loose or unstable
• Do not assume a painless tooth is free from decay or fracture

Only a dental examination can determine why the restoration failed and what treatment is appropriate.

Can You Eat With a Missing Crown or Filling?

You may be able to eat carefully, but avoid using the affected tooth whenever possible.

Choose foods that are:

• Soft
• Easy to chew
• Not excessively hot or cold
• Low in added sugar
• Unlikely to stick to the tooth

Avoid ice, nuts, hard candy, popcorn kernels, tough meats, sticky candy, chewing gum, and other foods that could fracture the tooth or become trapped in the opening.

What If You Swallow a Crown or Filling?

A swallowed crown or filling will often pass through the digestive system, but contact a healthcare professional for guidance, particularly if the restoration is large, sharp, or attached to another dental component.

Call 911 or seek emergency medical care immediately for:

• Difficulty breathing
• Persistent coughing or choking
• Wheezing
• Chest pain
• Concern that the restoration was inhaled rather than swallowed

Do not attempt to induce vomiting.

What If the Tooth Breaks With the Crown or Filling?

Sometimes the restoration comes out because part of the underlying tooth has fractured.

Signs of a possible tooth fracture include:

• A piece of natural tooth attached to the restoration
• A jagged or sharp remaining tooth
• Pain when biting
• Visible pink or red tissue inside the tooth
• Bleeding from the center of the tooth
• A crack extending below the gumline
• Movement of the remaining tooth structure

A fractured tooth should be evaluated promptly. Review our guide to a broken or cracked tooth for additional warning signs.

Why a Crown May Fall Off a Root Canal-Treated Tooth

A tooth that has received root canal treatment may be more structurally vulnerable because of previous decay, fractures, or loss of tooth structure.

If the crown comes off, the tooth may not feel as sensitive as a vital tooth because the internal nerve tissue has already been treated. Lack of pain does not mean the tooth is safe to leave uncovered.

The exposed tooth may still fracture, develop new decay, or allow bacteria to reach previously treated areas. Contact a dentist promptly and avoid chewing on the tooth.

How a Dentist Evaluates a Lost Crown or Filling

The dentist will examine the restoration, remaining tooth structure, surrounding gums, bite, and any symptoms involving the tooth.

The evaluation may include:

• Checking for new or recurring decay
• Looking for cracks or fractures
• Determining whether the tooth is structurally sound
• Evaluating sensitivity and pain when biting
• Examining the gums for inflammation or infection
• Assessing whether the crown still fits properly
• Using dental X-rays or other imaging when necessary
• Reviewing whether the tooth previously received root canal treatment

The findings determine whether the restoration can be replaced directly or whether additional treatment is needed first.

How a Lost Crown Is Treated

Treatment depends on the condition of the crown and the tooth beneath it.

Possible treatment options include:

• Cleaning and recementing the existing crown
• Repairing the tooth before replacing the crown
• Creating a new crown when the original no longer fits
• Treating decay beneath the crown
• Building up weakened tooth structure
• Performing root canal treatment when the pulp is infected or severely inflamed
• Removing a tooth that cannot be predictably restored

A crown generally cannot be recemented when it is damaged, no longer fits, or the tooth beneath it has significantly changed.

How a Lost Filling Is Treated

Treatment for a lost filling depends on the size of the opening, the condition of the remaining tooth, and whether additional decay or fracture is present.

Treatment may involve:

• Placing a new dental filling
• Using an inlay or onlay for a larger damaged area
• Placing a crown when the tooth has lost substantial structure
• Treating new decay beneath or around the previous filling
• Providing root canal treatment when the pulp is affected
• Removing the tooth when it cannot be restored

Larger restorations generally require more remaining tooth support than small fillings.

Can the Existing Crown Be Reused?

An existing crown may sometimes be reused when it is undamaged, still fits accurately, and the tooth beneath it does not require significant additional treatment.

A new crown may be necessary when:

• The crown is cracked or distorted
• Decay has changed the shape of the underlying tooth
• Part of the tooth broke away
• The crown no longer fits the margin properly
• The bite has changed
• The restoration has excessive wear
• The crown cannot be cleaned or recemented predictably

Bring the crown to the appointment even when you believe it is damaged.

What Happens If a Lost Restoration Is Not Replaced?

Delaying treatment can expose the tooth to continued chewing pressure, food accumulation, decay, sensitivity, and fracture.

Possible complications include:

• Increasing tooth sensitivity
• New or worsening decay
• Fracture of the remaining tooth
• Inflammation or infection of the dental pulp
• Gum irritation
• Changes in the bite
• The need for more extensive restorative treatment
• Loss of a tooth that might otherwise have been repairable

Prompt care may allow the dentist to restore the tooth before additional damage occurs.

Lost Crown or Filling Care in Madison, Alabama

Patients in Madison, Huntsville, Harvest, Athens, and surrounding North Alabama communities should contact a dentist when a crown or filling becomes loose, breaks, or falls out.

Apex Dental evaluates the affected tooth, remaining restoration, bite, and surrounding tissues to determine whether the restoration can be replaced or whether additional treatment is needed.

Learn more about emergency dental services in Madison and review what is considered a dental emergency.

Frequently Asked Questions About Lost Crowns and Fillings

▸Is a lost crown or filling a dental emergency?
A lost restoration generally requires prompt dental care. More urgent evaluation is appropriate when the tooth is severely painful, fractured, swollen, infected, or damaged during an injury.

▸Can I glue a crown back onto my tooth?
Do not use household glue, super glue, or another permanent adhesive. These products can damage the tooth and surrounding tissue. Contact a dentist for instructions.

▸Can I eat after losing a filling or crown?
Eat carefully and avoid chewing on the affected side. Choose soft foods and avoid hard, sticky, sugary, very hot, or very cold items.

▸Can a dentist reuse a crown that fell out?
A crown may sometimes be cleaned and recemented when it is undamaged, still fits properly, and the underlying tooth is healthy enough to support it.

▸What should I do with a crown that fell out?
Rinse it gently, place it in a clean container, avoid scraping the inside, and bring it to the dental appointment.

▸Why does the tooth hurt after the filling falls out?
The missing filling may expose sensitive tooth structure, or the tooth may have new decay, a crack, or inflammation involving the dental pulp.

Related Emergency Dental Resources

• Emergency Dental Guides
• What Is Considered a Dental Emergency?
• Emergency Dentist or Emergency Room?
• Emergency Dental Services
• Broken Tooth
• Tooth Pain
• Tooth Sensitivity
• Root Canal Treatment