Dental insights · Restorative dentistry
Loose or lost dental crown: what matters now
A crown suddenly feels loose while eating – or it is already in your hand. This can be unsettling, even without pain. Contact your dental practice promptly and describe what happened. How soon treatment is needed, and whether the crown can be refitted, depend on the findings.
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AI-generatedWhen it is urgent
Severe or increasing pain, swelling or fever need urgent dental assessment. Outside normal opening hours, contact the emergency dental service. Call the practice on duty before attending.
Find the emergency dental service in North Rhine
For breathing difficulty, severe swallowing problems, a serious facial injury or heavy bleeding that will not stop: call 112. Suspected inhalation of a crown needs immediate medical assessment – if breathing is difficult, call 112.
01 Get in touch, even without pain
A loose crown does not automatically mean the tooth is lost. For example, its cement may have loosened; damage to the crown or tooth is also possible. You cannot reliably tell the difference from appearance alone. Do not simply wait for your next routine check-up. The dental team can assess urgency based on your symptoms.
02 Keep the crown safe
If the crown has come out completely, keep it in a small clean container and bring it to the appointment. If it is still partly attached, do not pull or twist it. Avoid repeatedly testing it with your tongue or by biting down. Explain how loose it feels when you call.
03 Do not use household glue
Superglue and other household adhesives do not belong on a crown or in your mouth. Superglue can bond teeth and soft tissues together. Do not force the crown onto the tooth or wear it loosely in place. Ask the practice whether any temporary measure is appropriate before your appointment.
04 Protect the affected area
Soft foods are often more comfortable while waiting for assessment. Avoid hard or sticky foods on the affected side and chew on the other side where possible. If the tooth is sensitive, avoid very hot or cold food and drinks. Clean gently with a soft toothbrush. These steps can help until the examination; they do not repair the restoration.
05 Have both tooth and crown assessed
The examination considers the remaining tooth, the crown and its fit, among other things. If they are sufficiently intact, refitting may be possible. Damage or decay may require other steps, such as a temporary restoration or a new crown. A promise based on a photograph alone would not be reliable.
Three common questions
Does this also apply to a temporary crown?
Yes. Contact the practice promptly if a temporary crown is lost. The prepared tooth underneath may be sensitive and unprotected.
No pain – can I wait?
Absence of pain does not reliably mean everything is fine. Discuss the situation with the practice rather than deciding to leave it for an extended period.
What if a whole tooth was knocked out?
That is a different emergency. This article covers artificial crowns, not natural teeth that have been knocked out. A dental injury needs prompt dental help.
Read on: What is a dental crown?
Sources and further information
General information, not an individual diagnosis. Sources accessed and editorially reviewed on 30 October 2026. UK telephone numbers and healthcare access arrangements have not been adopted. The older ZahnRat issue is used only for the enduring principles concerning crowns and temporary restorations.
- SDCEP / NHS Scotland: Cracked, fractured, loose or displaced tooth fragments and restorations; current web version
- NHS: How to find an emergency or urgent NHS dentist appointment; reviewed 14 May 2025
- NHS: Dental abscess; reviewed 18 March 2026
- State dental associations: ZahnRat 81 – Mit der Krone wieder lachen können, March 2014, pages 6–7
- gesund.bund.de: emergency telephone numbers, updated 6 October 2025
- North Rhine Dental Association: emergency dental service
- National Capital Poison Center: Is super glue toxic?