A loose crown is more than a small nuisance: the exposed tooth needs protection. If you’re wondering what to do if a dental crown falls out, retrieve it, rinse your mouth gently with warm salt water, avoid chewing on that side and arrange dental care. Seek care within 24 hours if the tooth is sharp, painful, bleeding or shows signs of infection.
It can feel alarming, especially if the tooth underneath is sensitive. Crowns can come loose when the cement wears away or decay develops where the crown meets the tooth. Sticky foods, grinding and a weakened tooth can also contribute. Don’t use household glue to reattach the crown, as it can harm your tooth and gums.
This guide explains what to do if a dental crown falls out: the immediate steps to protect your tooth, why crowns may loosen and how to reduce the chance of it happening again. You’ll also learn what a dentist considers when deciding whether a crown can be refitted or needs replacing.
Key Takeaways
- Keep the crown, protect the exposed tooth, and arrange dental care. Avoid household glue and chewing on the affected side.
- Reduce strain on your crown with good daily cleaning, regular dental check-ups, and care around hard or sticky foods.
- Decay near the crown’s edge, worn cement, grinding, and damage to the tooth can all contribute to a crown coming loose.
- A dentist will assess the crown and underlying tooth to decide whether it can be refitted or needs replacing.
Why do dental crowns come loose?
- Arrange a dental assessment and watch for urgent symptoms. Crowns can loosen when cement wears away or decay develops where the crown meets the tooth. Grinding can also place strain on the crown. Contact a dentist promptly after it falls out. Seek dental care within 24 hours if the exposed tooth is sharp, painful, bleeding or shows signs of infection. Severe pain, swelling, bleeding or a large broken piece of tooth calls for emergency dental care.
- Retrieve the crown and keep it safe. Check whether it is intact or broken, and whether a piece of tooth is attached. Gently rinse away visible debris with water, but don’t scrub it or use household cleaners. Place the crown in a clean container and take it to your dentist so they can assess whether it can be refitted. If a dentist advises temporary reinsertion, gently clean the inside with toothpaste first.
- Protect the tooth underneath. Brush gently around the exposed area to clear food and bacteria without pressing hard. A warm salt-water rinse may help keep your mouth clean: dissolve half a teaspoon of salt in a cup of warm water, then swish gently for about 30 seconds. If you can’t see a dentist immediately, pharmacy dental cement may temporarily hold the crown for one or two days. Follow its instructions, and never use superglue or household glue.
- Choose gentle foods while sensitivity settles. The tooth underneath may react to air, temperature or pressure, so chew on the opposite side and choose soft foods. Avoid hard, crunchy, sticky or chewy items that could irritate the tooth or pull at temporary cement. Very hot or cold foods may also aggravate sensitivity. Clove oil or pharmacy dental cement may offer temporary relief, but neither replaces a dental assessment.
Can You Prevent This From Happening in the Future?
- Clean carefully every day. Brush twice a day and floss regularly to remove plaque around a crown. Use an interdental brush gently where the gum meets the tooth, without forcing it. This helps clean the crown’s edge, where plaque can contribute to decay in the supporting tooth. Keeping the margin clean helps protect the tooth that holds the crown in place.
- Keep regular dental check-ups. Arrange dental check-ups every six months so a dentist can assess the crown’s fit and the gum around it. Small changes at the crown edge can be easier to address before the crown becomes loose or the tooth becomes damaged. If you’re due for a visit, routine dental check-ups help keep both natural teeth and existing dental work under observation.
- Take care while eating, especially after treatment. Avoid chewing ice, and be cautious with sticky or chewy foods that can pull at a crown. After a crown is re-cemented, avoid hard or sticky foods for at least 24 hours while the cement sets. If you have a temporary crown, choose softer foods and chew on the opposite side where possible. If it loosens during eating, stop chewing and take care not to swallow it.
- Reduce strain from grinding and notice changes. Grinding at night can put pressure on crowns and natural teeth. A dentist may recommend a night mouthguard to protect them. Crowns can last 10 to 15 years or longer, depending on material, oral hygiene and habits such as grinding. If a crown feels loose, becomes broken or changes how your teeth meet, arrange an assessment. The crown and tooth can then be checked for damage and whether replacement is needed.
Reasons dental crowns become loose or fall off
- Consider whether the tooth’s edge has changed. A crown cannot decay, but decay can develop where it meets the gum. This edge is called the crown margin. Plaque left nearby can damage the tooth underneath and weaken the support holding the crown. For example, a crown that once felt secure may start rocking if decay affects the supporting tooth. A dentist can examine the margin and check beneath the crown.
- Think about the dental cement and crown fit. Cement holds the crown against the prepared tooth, but it can wear down over time. If too little cement was used or the crown doesn’t fit closely, it may loosen sooner. A poor fit can leave gaps where food and bacteria collect. A loose crown may also feel different when you bite, even before it comes off. These clues can help explain the problem, but an examination is needed to identify the cause.
- Notice pressure, impact and crown damage. Grinding can repeatedly strain a crown, while biting hard foods or chewing sticky lollies can pull at one that is already loose. A weakened or cracked tooth may also fail to support the crown. Look for a visible crack, a broken edge or a piece of tooth attached to the crown. These signs can affect whether the crown can be refitted or needs replacing.
- Match the response to symptoms, including on weekends. A lost crown with severe pain, swelling, bleeding or a large broken piece of tooth calls for emergency dental care. If the exposed tooth is painful, sharp, bleeding or shows signs of infection, seek dental care within 24 hours. If the crown has come off cleanly and the tooth feels comfortable, an appointment within two to three days is usually fine. Don’t leave a sensitive tooth unassessed just because the crown fell out outside normal weekday hours.
When a replacement crown may be needed
- Have the crown and tooth underneath assessed. A dentist checks whether the crown is intact, whether it still fits, and whether decay or damage affects the supporting tooth. An X-ray can help assess the tooth beneath it. These findings help determine whether the crown can be cleaned and re-cemented or needs replacing. Bring the fallen crown to your appointment so it can be examined.
- Ask whether the existing crown can be reused. If it’s intact, fits well and the underlying tooth is healthy, the dentist may clean and permanently re-cement it. A small chip in a porcelain crown can sometimes be smoothed or bonded. A through-crack, a large missing piece or a poor fit usually means a new crown is needed. Don’t try to secure it with household adhesive.
- Understand the steps if a new crown is needed. If the crown or tooth underneath is decayed, damaged or worn, the dentist may take impressions to make a replacement. A temporary crown can protect the prepared tooth while the permanent one is made, often for a couple of weeks. If a break exposes the nerve or infection develops, root canal treatment may be recommended before the new crown is placed.
- Ask how treatment costs and insurance affect your out-of-pocket amount. Repair or replacement costs depend on the extent of damage, whether a new crown is needed, the material and the complexity of treatment. Australian private health insurance can affect out-of-pocket costs; your cover and the treatment provided influence the amount. After recementing, avoid hard or sticky foods for at least 24 hours while the cement sets. For an assessment of a loose or damaged crown, arrange a dental crown assessment.
Star Dental Care: Emergency Dental Services
Star Dental Care provides Emergency Dental Services for a lost crown, a painful exposed tooth or damage that needs prompt assessment. A dentist can examine the crown and the tooth underneath, then discuss whether it can be refitted or needs replacing. If the tooth’s nerve is affected, Root Canal Endodontics may be part of the care plan. Dental Crowns & Bridges can address the next step when a crown needs repair or replacement. Seek urgent dental care for severe pain, swelling, bleeding or signs of infection. If your crown is loose or has fallen out, contact Star Dental Care to arrange an assessment and discuss your care.
Take the next step towards a secure smile
Knowing what to do if a dental crown falls out can make an unexpected problem easier to manage. After protecting the tooth, arrange an assessment to make a clear plan for your ongoing dental health. At your appointment, discuss what may have caused the crown to loosen and how to care for the repaired or replacement crown as part of your daily routine.
Star Dental Care offers Emergency Dental Services for urgent dental concerns, alongside Family Dental Care for ongoing needs. The practice also provides Wisdom Tooth Extractions. Whether you need attention for a fallen crown or are planning care for your household, Star Dental Care can help you take the next step.
Contact Star Dental Care to discuss your dental concern and arrange care. A calm, practical next step can help you move forward with confidence.
Frequently Asked Questions
How Soon Should You See a Dentist?
If you’re deciding what to do if a dental crown falls out, seek dental care within 24 hours if the tooth is painful, sharp, bleeding or shows signs of infection. If it came off cleanly and feels comfortable, arrange an appointment within two to three days. Tell the dental practice whether the crown is missing, damaged or partly attached. If symptoms worsen while you wait, contact a dentist sooner.
What Happens If You Leave a Fallen Crown Untreated?
Leaving the tooth without assessment can expose it to further damage. Knowing what to do if a dental crown falls out includes arranging care before the tooth chips during everyday biting or decay and infection go unnoticed. Mild discomfort may become harder to ignore as you use the tooth. Temporary protection isn’t a lasting fix, so arrange dental care.
Why Do Crowns Fall Out?
Crowns can come loose when the cement weakens, the fit changes, decay affects the tooth’s edge or the supporting tooth is damaged. Grinding and biting sticky foods can also strain a crown. A crown that shifts while chewing may signal a developing problem, even if it hasn’t fallen off. A dental examination can identify whether the crown or tooth needs attention.
Can I glue it back on myself?
No. Don’t use superglue, nail glue or household adhesive on a crown. These products aren’t made for use in the mouth and can harm the tooth or gums. Glue can also make proper dental treatment more difficult. Keep the crown safe and bring it to your appointment. If you’re considering a temporary product, use dental cement only as directed for short-term protection.
Can You Reattach It Yourself?
Don’t force the crown back onto the tooth yourself. It may not sit correctly, and pressure could hurt the exposed tooth or damage the crown. If a dentist advises putting it back temporarily, follow their instructions carefully and stop if it doesn’t sit easily. A crown that feels loose or changes your bite needs professional assessment, even if it appears to stay in place.
Can a Crown Be Put Back On After It Falls Out?
Yes, a dentist may be able to reattach it if the crown is intact, fits properly and the tooth beneath it is healthy. A cracked crown, poor fit or decay may mean replacement is needed instead. Bring the crown to the appointment, including any pieces if it has broken. The dentist can assess both the crown and tooth before deciding on suitable treatment.
My name is Jeremy Rourke. I’m part of a family of dentists with my father, brother, cousin and nephew also being dentists. I won a University of Sydney Dental Alumni prize for being the top student in my year and graduated with Honours in 1971. I have been a Registered dentist for over 40 years. In that time I have created a few “firsts” in my efforts to stay ahead.
