Person smiling for a dental emergency guide

Published March 8, 2026Written by Landmark Dental Care

What to Do if a Filling or Crown Falls Out

If a filling or crown falls out, save the piece if you have it, avoid chewing on that tooth and contact a dentist promptly—the exposed tooth can be sensitive, sharp or at higher risk of further breakage or decay. Temporary drugstore kits may cover a rough surface for a short time in some cases, but they are not a repair and should not delay professional assessment. Severe swelling, difficulty breathing or swallowing, uncontrolled bleeding or signs of serious infection require emergency medical care or 911 rather than home temporary measures.

Key Takeaways

  • Save the crown or filling fragment, keep the area clean and call a dentist soon—do not wait for a routine recall if the tooth is open or sharp.
  • Avoid sticky foods, hard chewing on that side and household glues; temporary dental cement is short-term cover only when used as directed.
  • Pain, swelling, a bad taste, fever or a sharp edge cutting soft tissue raise urgency.
  • A dentist must decide whether recementation, a new restoration or other treatment is appropriate after examining the tooth.

Why a restoration coming off needs assessment

Fillings and crowns protect tooth structure that has been weakened by decay, fracture or previous treatment. When a restoration comes loose or falls out, the underlying tooth may be more fragile than it looks. The open surface can collect food, become sensitive to air and temperature, and chip further under normal biting forces.

A crown that comes off intact does not automatically mean it can be recemented. The tooth may have decay underneath, the crown margins may no longer fit, or the remaining tooth structure may be inadequate. Only an examination—and imaging when clinically indicated—can determine whether the same crown can be reused.

A lost filling can leave a cavity or a deep preparation exposed. What feels like a small hole can involve a larger area of missing structure or proximity to the pulp. Delaying care because “it only hurts a little” can allow decay to progress or a crack to extend.

Lost temporary crowns after recent dental work also need a call to the office. Temporary restorations protect the prepared tooth and maintain space and bite relationships until the final crown is ready. Leaving the tooth uncovered for days without advice increases risk of sensitivity, shifting and further damage.

Contacting emergency dentistry the same day or next available urgent slot is appropriate when a restoration is missing, even if you are not in severe pain.

Safe short-term steps

  1. Retrieve the restoration if possible. Rinse a crown gently with water. Do not scrub the inside with abrasive cleaners. Store it in a clean container and bring it to your appointment.
  2. Look carefully, but do not poke. Avoid digging into the tooth with toothpicks, pins or sharp tools to remove debris.
  3. Rinse gently. Warm water or a mild saltwater rinse can help clear food from the open area. This is comfort care, not disinfection that cures the problem.
  4. Cover only if advised and appropriate. Some pharmacies sell temporary dental cement or filling material for short-term use. If you use a product, follow the package directions exactly, use the smallest amount needed to cover a sharp edge or open surface, and understand it is temporary. Do not force material deep into a painful tooth or under the gums.
  5. If a crown still fits loosely and you are considering temporary recementation with a dental-specific temporary cement, ask a pharmacist or the dental office first. Incorrect seating can lock the crown on at the wrong height or trap debris. Never use super glue, household cement, epoxy or denture adhesive not intended for this purpose.
  6. Manage discomfort carefully. Over-the-counter pain relievers may help if appropriate for your medical history and used as labeled. Do not place aspirin tablets against the gum; that can burn tissue.
  7. Call the dental office. Describe whether the piece is a filling or crown, whether you still have it, whether the tooth hurts and whether the edge is sharp. Ask how soon you should be seen.

If you cannot reach your dentist and pain is severe, swelling is increasing or you feel systemically unwell, escalate to urgent dental or medical care as symptoms dictate.

What to avoid chewing or using

Until the tooth is assessed:

  • do not chew sticky candy, chewing gum or caramel on that side;
  • avoid hard foods such as ice, hard nuts, hard candy and crusty bread on the open tooth;
  • do not use the tooth to tear packages or open bottles;
  • avoid whitening strips or abrasive powders on the exposed surface;
  • do not file the tooth;
  • do not try to “tap” a crown back on repeatedly throughout the day;
  • do not leave temporary cement in place for weeks as a substitute for care.

Sticky foods can pull a temporary cover or a loose crown off again. Hard biting can fracture remaining cusps. Household adhesives can permanently damage the tooth and the restoration and may require more invasive treatment to remove.

If temporary material comes out while you wait for your visit, call the office rather than inventing a new covering from non-dental products.

When pain or sharp edges change urgency

Call sooner—or seek same-day care—if:

  • pain is moderate to severe or waking you at night;
  • cold air or drinks cause lasting pain;
  • a sharp edge is cutting your tongue or cheek;
  • the tooth feels loose;
  • the bite feels “high” after you tried to seat a crown yourself;
  • swelling appears in the gum or face;
  • you notice fever, foul taste, or pus-like drainage;
  • a large portion of tooth broke away with the restoration.

Seek emergency medical care or call 911 for difficulty breathing or swallowing, rapidly spreading facial or neck swelling, uncontrolled bleeding, or severe trauma associated with the dental injury. A missing filling by itself is usually a dental problem; combined airway or systemic red flags are medical emergencies.

People with higher medical risk—such as significant immunosuppression—should mention that when calling, because infection risk management may affect how quickly assessment is advised. This article cannot triage individual medical risk remotely.

What the dentist may do next

The dentist will examine the tooth, check the bite and inspect the old restoration if you brought it. Imaging may be used when it could show decay under the restoration, root problems or other changes that affect the plan. Imaging decisions should be based on clinical need.

Possible next steps, depending on findings, include:

  • cleaning the tooth and placing a new filling;
  • adjusting and recementing a crown when fit and tooth structure allow;
  • making a new crown when the old one no longer fits or the tooth has changed;
  • placing a temporary restoration while a laboratory crown is fabricated;
  • evaluating the pulp if symptoms suggest irreversible inflammation or infection;
  • discussing extraction and replacement options when the tooth cannot be predictably restored.

None of these outcomes can be promised from a description of “my crown fell out.” Fees, number of visits and whether a temporary is needed vary with the clinical situation. Ask what must be done today for comfort and protection, and what can be scheduled as definitive care.

If decay or a crack is found under the old restoration, the dentist should explain how that changes the plan. Saving the tooth is often a goal when predictable, but predictability is judged in the chair—not by online comparisons of before-and-after photos.

FAQ

Can I put my crown back on with super glue?

No. Super glue and household adhesives are unsafe for teeth and soft tissues and can complicate professional recementation. Use only dental-specific temporary products if needed for short-term cover, and see a dentist promptly.

How soon should I see a dentist after a filling falls out?

Contact a dental office as soon as practical, ideally the same day. Even without severe pain, the open tooth can be sensitive and more vulnerable to further damage or decay. Sharp edges or pain should move the visit up further.

Will the same crown always go back on?

Not always. Recementation is possible only when the crown still fits, the tooth is intact enough and decay or other problems are controlled. Sometimes a new restoration is required after examination.

Next step

If a filling or crown has come loose or fallen out, call Landmark Dental Care for urgent dental concerns at 902-893-2919. For difficulty breathing or swallowing, severe facial swelling or other medical emergency signs, seek emergency medical care or call 911.

References

This article provides general educational information and is not a diagnosis or a substitute for care from a dentist or other qualified health professional. Temporary home measures do not replace an examination.