Avulsed tooth (tooth knocked out)
If a tooth has been knocked clean out of the mouth, it is essential to see a dentist immediately. When a tooth exits the mouth, tissues, nerves and blood vessels become damaged. If the tooth can be placed back into its socket within an hour, there is a chance the tissues will grow to support the tooth once again.
Usually, a crown or filling comes loose while eating. Once it is out of the mouth, the affected tooth may be incredibly sensitive to temperature changes and pressure. Crowns generally become loose because the tooth beneath is decaying. The decay causes shape changes in the teeth – meaning that the crown no longer fits.
If a crown has dropped out of the mouth, make a dental appointment as soon as possible. Keep the crown in a cool, safe place because there is a possibility that the dentist can reinsert it. If the crown is out of the mouth for a long period of time, the teeth may shift or sustain further damage.
The teeth are strong, but they are still prone to fractures, cracks and breaks. Sometimes fractures are fairly painless, but if the crack extends down into the root, it is likely that the pain will be extreme. Fractures, cracks and breaks can take several different forms, but are generally caused by trauma, grinding and biting. If a tooth has been fractured or cracked, there is no alternative but to see the dentist as quickly as possible.