A filling can fall out, a crown can come loose, or a tooth can crack unexpectedly. These problems do not all require the same level of urgency, and the amount of pain you feel is not always a reliable guide. A damaged restoration or tooth may be exposed or weakened even when there is little discomfort. Knowing what happened and recognizing warning signs can help you decide when to contact a dentist.
Lost Filling: When Should You See a Dentist?
After a filling falls out, you may notice a hole or rough area in the tooth, food becoming trapped, hot or cold sensitivity, a sharp edge, or mild discomfort when chewing. Sometimes there are no symptoms at all.
A lost filling is not automatically a middle-of-the-night emergency, but the tooth should still be assessed by a dentist. Contact a dentist promptly if you have significant or increasing pain, swelling, strong sensitivity, difficulty biting, or a large portion of the tooth has broken away.
What to Do After Losing a Filling
- Avoid chewing hard foods on the affected side.
- Keep the area clean with normal brushing and flossing, while being gentle if it is sensitive.
- If food becomes trapped, carefully clean around the area.
- Do not place aspirin directly on the tooth or gum.
- Arrange a dental appointment rather than leaving the tooth untreated.
If Your Crown Comes Off
A crown protects a tooth that may already have been weakened by decay, a large restoration, trauma, or previous root canal treatment. When a crown comes off, the tooth underneath may be exposed and vulnerable to further damage. You may notice an altered tooth shape, sensitivity, difficulty chewing, or a sharp edge, although there may be no pain.
Keep the crown and bring it to your dental appointment. Avoid chewing on the affected tooth, and do not permanently glue the crown back yourself. Your dentist can examine both the crown and the underlying tooth and determine whether the existing restoration can be used or needs to be replaced.
Cracked Tooth: Why It Needs Prompt Attention
A cracked tooth can be difficult to judge because the crack may not be obvious. Possible symptoms include sharp pain when biting or releasing the bite, hot or cold sensitivity, intermittent discomfort, a rough or broken edge, or no obvious symptoms.
The location and depth of a crack affect treatment. A dentist needs to examine the tooth before determining whether it can be restored and what treatment is appropriate. Depending on the damage, treatment may involve a restoration, crown, root canal treatment, or, in severe cases, extraction.
For more information about treatment when the tooth’s pulp is affected, see root canal treatment in Cambridge.
When Is It a Dental Emergency?
Seek urgent dental attention if a damaged filling, crown, or tooth is accompanied by severe or persistent pain, facial or jaw swelling, significant bleeding, serious dental or facial injury, difficulty opening your mouth, or other signs of infection.
Difficulty breathing or swallowing associated with facial or oral swelling requires immediate medical attention. If a tooth has been knocked out, seek urgent care and contact a dentist as soon as possible.
Cambridge Centre Dental Care currently provides emergency dental care seven days a week, including Sundays, and accepts emergency patients who are not already registered with the clinic. If you are unsure whether your situation is an emergency, contact the clinic and describe your symptoms.
Quick Comparison
| Problem | Common signs | Recommended action |
|---|---|---|
| Lost filling | Hole, sensitivity, rough edge | Arrange a dental assessment |
| Broken or lost crown | Crown comes off, exposed or altered tooth | Contact a dentist promptly |
| Cracked tooth | Pain when biting, sensitivity, visible fracture | Arrange prompt dental assessment |
| Swelling or severe pain | Significant discomfort or swelling | Seek urgent dental care |
Frequently Asked Questions
Is a lost filling always a dental emergency?
No. The urgency depends on the condition of the tooth and your symptoms. However, a lost filling should still be assessed because the underlying tooth may be vulnerable to further damage.
What should I do if my crown falls out?
Save the crown, avoid chewing on the affected tooth, and contact your dentist. Do not permanently glue the crown back yourself.
Does a cracked tooth always hurt?
No. Some cracks cause intermittent symptoms or little noticeable discomfort initially. A suspected or visible crack should still be assessed by a dentist.
Final Thoughts
A lost filling, broken crown, and cracked tooth can look similar from a patient’s perspective, but they can represent different dental problems. A lost filling may sometimes be managed through a timely appointment, while a loose crown should be assessed because the tooth underneath may need protection. A cracked tooth also deserves prompt attention because the extent of the damage may not be obvious.
If you have significant pain, swelling, infection, substantial tooth damage, or uncertainty about what has happened, contact a dentist promptly. For patients seeking emergency dental care in Cambridge, Cambridge Centre Dental Care provides emergency appointments seven days a week.
