Remove and save the crown
Take the loose crown out of your mouth so you do not accidentally swallow it. Keep it safe and bring it to your dental appointment.
Dental Emergency Guide
My Crown Fell Off and My Tooth Is Black: What Should I Do?
If a dental crown falls off and the tooth underneath looks black, brown or unusually dark, the colour alone cannot tell you exactly what has happened. Possible causes include decay beneath the crown, staining from old restorative materials, damage to the pulp inside the tooth or a crack or fracture.
Quick answer
Keep the crown, avoid chewing on the exposed tooth and arrange a dental examination. Do not use household glue. If you have severe or worsening pain, swelling, pus, fever, facial swelling or difficulty swallowing, seek urgent dental care.
First Aid Steps
What to Do Right Now If Your Crown Falls Off
The immediate goal is to protect the remaining tooth and avoid causing additional damage before a dentist can examine it.
Keep the area clean
Brush the exposed tooth carefully with a soft toothbrush and keep the surrounding area as clean as possible.
Avoid chewing on the tooth
Use the opposite side of your mouth and avoid hard, sticky or very hot and cold foods if the exposed tooth is sensitive.
Arrange a dental examination
The dentist needs to determine why the crown came off and whether the remaining tooth is healthy enough to restore.
What Should I Do With the Crown That Fell Off?
Keep the crown even if it looks damaged. Rinse it gently with clean water if necessary, place it in a clean container or sealed bag and bring it to your dentist.
Do not scrape the inside of the crown. Material attached to it may be dental cement, restorative material, a core buildup or part of the natural tooth.
Do not force the crown back into place.
If it does not fit easily, feels high when you bite or the tooth looks broken or damaged,
leave it out until the tooth has been examined.
Why Is My Tooth Black After My Crown Fell Off?
A dark colour under a fallen crown has several possible explanations. Appearance alone cannot confirm which one is responsible, so the tooth should be assessed clinically.
Decay under the crown
Recurrent decay can develop around or beneath a crown if bacteria gain access to the natural tooth.
Pulp damage or loss of vitality
Damage to the pulp inside the tooth can sometimes be associated with grey or dark discolouration.
Old restorative material
Existing filling material, cement, metal posts or staining may contribute to a dark appearance.
Crack or fracture
The crown may have loosened because the supporting tooth or restoration underneath has fractured.
What Can the Appearance of the Tooth Suggest?
The appearance can provide clues, but it cannot diagnose the cause by itself. A dentist combines what the tooth looks like with the condition of the crown, remaining tooth structure, symptoms and clinical tests.
| What you notice | What it may suggest | What the dentist may need to check |
|---|---|---|
| Dark but hard tooth structure | Staining, old restorative material or decay | Crown margins, tooth structure and radiographic findings where indicated |
| Soft, crumbling or irregular dark area | Possible recurrent decay or structural breakdown | Extent of decay and how much sound tooth remains |
| Grey or dark tooth with little discomfort | Possible pulpal damage or loss of vitality | Pulp status and surrounding tissues |
| Bad smell or unpleasant taste | Food and bacterial accumulation, decay or possible infection | Tooth, gum, crown and surrounding tissues |
| Tooth or filling material attached inside the crown | Possible fracture or failure of the supporting core | Remaining tooth structure and extent of the fracture |
| Swelling, pus, fever or facial swelling | Possible active dental infection | Prompt clinical assessment and appropriate imaging |
When Is a Fallen Crown Urgent?
A fallen crown should be assessed by a dentist, but the level of urgency depends on the symptoms and the condition of the remaining tooth.
No pain
No pain does not confirm that the tooth is healthy. Decay, structural damage or problems affecting the pulp may sometimes produce limited symptoms.
Bad smell or bad taste
An unpleasant smell or taste may be associated with trapped debris, bacterial accumulation, decay or infection. Arrange a dental assessment promptly.
Pain, swelling or fever
Severe or worsening pain, pus, facial swelling, fever or difficulty swallowing or breathing requires urgent attention.
What If Part of the Tooth Came Off With the Crown?
Material inside the crown may be natural tooth structure, filling material, a core buildup or another part of the previous restoration.
Keep the crown and any separate fragment you can find. Do not scrape the crown or force it back onto the remaining tooth.
A dentist needs to determine how much healthy tooth remains and whether there is enough structure to support another restoration.
What If a Crown Falls Off a Root Canal-Treated Tooth?
Arrange a dental examination even if the tooth is not painful. A previously root canal-treated tooth can still develop problems involving the restoration, recurrent decay, cracks or new bacterial contamination.
Avoid chewing on the tooth and keep it clean until it can be examined. The dentist will assess the crown, remaining restoration and root before deciding on the appropriate treatment.
Learn more about root canal treatment at Klinik7.
Can the Dentist Put the Same Crown Back On?
Sometimes the existing crown can be reused. The decision depends on why it came off, whether the crown is still intact and how much healthy tooth structure remains underneath.
| What the dentist finds | Possible next step |
|---|---|
| Crown is intact and the tooth is suitable | The crown may be cleaned and re-cemented |
| Decay beneath the crown | Decay may need to be removed and the tooth rebuilt before restoration |
| Pulp inflammation or infection | Endodontic assessment and possible root canal treatment may be required |
| Fractured or badly weakened tooth structure | The tooth may need rebuilding, a new restoration or another treatment depending on the fracture |
| Tooth cannot be predictably restored | Extraction and replacement options may need to be discussed |
What Should I Do While Waiting to See a Dentist?
Eating
Chew on the opposite side and avoid hard or sticky foods that could place additional pressure on the exposed tooth.
Brushing
Continue cleaning the area gently with a soft toothbrush and fluoride toothpaste.
Sensitivity
Avoid foods and drinks that are very hot or cold if the exposed tooth has become sensitive.
Temporary repairs
Do not use superglue, nail glue, craft glue or another household adhesive. Do not force a crown onto a damaged or broken tooth.
Concerned about what you can see?
You can send a clear photo of the crown and exposed tooth.
A photograph cannot confirm a diagnosis, but it may help our team understand what has happened.
Send a Photo on WhatsApp
What Does a Dentist Check When a Crown Falls Off?
The goal is not simply to put the crown back on. The dentist first needs to understand why the restoration failed and whether the underlying tooth can be safely restored.
The crown itself
Whether it is intact, fractured or still fits the tooth correctly.
Remaining tooth structure
How much sound natural tooth remains to support a restoration.
Decay
Whether recurrent decay has developed beneath or around the crown.
Pulp status
Whether the pulp appears healthy or requires further endodontic assessment.
Cracks and fractures
Whether the crown failure is associated with structural damage to the tooth.
Radiographic findings
Imaging may be used when needed to assess roots, surrounding bone or hidden disease.
Can a Black Tooth Under a Crown Be Saved?
Sometimes it can. The important question is not simply how dark the tooth looks, but why it has changed colour and whether enough healthy structure remains for predictable restoration.
- Staining or old restorative material may not require extensive treatment.
- Decay may require removal of damaged tissue and rebuilding of the tooth.
- Pulp inflammation or infection may require endodontic treatment.
- A fractured tooth may need restorative or endodontic assessment depending on the extent of the crack.
- A tooth that cannot be predictably restored may require extraction and replacement planning.
A clinical examination and appropriate imaging are needed before deciding whether the existing crown can be reused, a new crown is required or another treatment is more appropriate.
Related Information From Klinik7
Dental Assessment
Get Your Tailored Treatment Plan
If your crown has fallen off and you are concerned about the tooth underneath, send us your details and any available dental information. A remote assessment cannot replace a clinical examination, but it can help with initial treatment planning.
My Crown Fell Off and My Tooth Is Black: Frequently Asked Questions
How long can I go if my crown fell off?
Arrange a dental examination as soon as reasonably possible. Until then, keep the tooth clean and avoid biting hard foods with it. If you develop severe pain, swelling, pus, fever or facial swelling, seek urgent dental care.
My crown fell off but it does not hurt. Is that okay?
Not necessarily. The absence of pain does not confirm that the underlying tooth is healthy. Decay, structural damage or problems involving the pulp may sometimes cause limited symptoms.
Is a black tooth always caused by decay?
No. A dark appearance may be related to decay, old restorative materials, staining, pulpal damage or other changes. The cause cannot be confirmed from colour alone.
Can the same crown be put back on?
Sometimes. If the crown is intact and the remaining tooth is suitable, a dentist may be able to re-cement it. If decay, fracture or another underlying problem is present, treatment may be needed first.
What if part of my tooth is stuck inside the crown?
Keep the crown and do not remove material from inside it. The attached material may be natural tooth structure or part of the previous restoration. A dentist should assess how much healthy tooth remains.
What if a crown falls off a root canal-treated tooth?
Arrange an examination even if the tooth is not painful. A root canal-treated tooth can still develop recurrent decay, restoration failure, cracks or new bacterial contamination.
