What should you do if a dental crown falls out?
A dental crown coming loose or falling out can be alarming — but it is a manageable situation in most cases. Acting promptly and sensibly usually prevents the problem from becoming worse.
What to do immediately
If your crown comes out completely, keep it somewhere safe — ideally in a small container. Do not throw it away, as it may be able to be re-cemented if the crown and underlying tooth are undamaged. Avoid eating on the affected side and be careful of sharp edges.
Can you re-cement a crown temporarily?
Temporary dental cement (available from most pharmacies) can be used to replace a crown temporarily while you wait for an appointment. This is a short-term measure only — do not use it as a long-term solution. Follow the packet instructions carefully, and do not use household glue.
Call your dentist as soon as possible
Contact 110 Total Dentistry on 020 7998 7657 to explain your situation. We will assess urgency and arrange an appointment to re-cement, repair or remake the crown as appropriate. A loose or missing crown leaves the prepared tooth vulnerable to sensitivity, cracking or decay, so prompt assessment is important.
Why do crowns come loose?
Crowns can loosen or come off for several reasons: the underlying cement can fail over time, decay can develop at the margins of the crown, the crown or tooth can be damaged by trauma, or the crown may have been placed under conditions that have since changed (bite changes, grinding, etc.). Your dentist will identify the cause and address it as part of re-cementing or replacing the crown.
When you might need a new crown
If the crown is broken, if significant decay has developed on the tooth beneath it, or if the crown no longer fits well, a new crown will be needed. Your dentist will assess the tooth and the existing crown at your appointment and advise on the most appropriate course of action.
About this article
This article is general guidance. If you have a lost or loose crown, call 110 Total Dentistry on 020 7998 7657 for clinical advice specific to your situation.
Written and reviewed by Dr Kozhaya Assaker · GDC 176427 · Published August 2026 · ADD NEXT REVIEW DATE
Book an appointment
For personal advice on this topic, book an appointment at our Finchley practice.
Call for urgent advice020 7998 7657Related treatment
Emergency at 110 Total Dentistry →