Dental Emergencies
Lost filling or crown
A lost filling or crown is usually not urgent but should be seen promptly.
Urgency
Prompt, not urgent
Keep crown
Yes
Sensitivity
Common
Avoid
Sticky foods
Overview
Fillings and crowns can come loose over time or when biting something sticky or hard. The exposed tooth may feel sensitive to hot, cold or sweet.
It is rarely an emergency, but the tooth is more fragile without its cover. Seeing your dentist soon helps avoid further damage or decay.
What to know
- Usually not an emergency, but see your dentist soon
- The exposed tooth may be sensitive
- Keep a lost crown and bring it with you
- Avoid chewing on that side
Caring for it
- Keep the area clean by rinsing gently with warm water.
- If a crown came off whole, keep it safe and bring it to your appointment.
- Avoid chewing on that side to protect the tooth.
- Sugar-free gum or dental wax can cover a sharp edge for comfort.
- Temporary dental cement from a pharmacy may protect the tooth briefly.
- Do not use household glue to refit a crown.
- Book a dental visit promptly.
Call your dentist if…
- Seek prompt care if the tooth becomes very painful, swells, or has a sharp edge cutting your tongue or cheek.
Common questions
Is a lost crown an emergency?
Usually not, but see your dentist soon so the tooth can be protected.
Can I glue my crown back on?
Never use household glue. A pharmacy temporary cement is safer until you are seen.
Why is my tooth sensitive now?
The exposed surface is no longer covered, so it can react to hot, cold and sweet.
What if I swallowed the crown?
It will usually pass harmlessly. Let your dentist know so a new one can be planned.
Related topics
Dr Rick Iskandar · Reviewed June 2026