What to do When a Crown Comes off of Your Tooth
First of all, get the crown out of your mouth. You don’t want to risk swallowing it or accidentally breathing it in. If you swallow it, it will probably pass without a problem, but after it’s been through your digestive system you probably don’t want it back in your mouth! If you end up accidentally breathing it in, it could become infected.
Call your dentist and schedule an appointment. Let them know that your crown came off. They should try to fit you in as soon as possible (within a few days at most.)
What Happens In Your Mouth When You Leave the Crown Off
If you just leave the crown off and procrastinate a visit to the dentist for a check-up, you could be allowing the problem to get much worse. Enamel (the outermost layer of the tooth) is pretty resistant to tooth decay. Dentin, the softer layer under the enamel, is not nearly as resistant to tooth decay.
The crown replaces the enamel and some dentin on the tooth. When the crown falls off, it leaves behind a tooth that was shaved down to hold a crown on it. When the tooth got shaved down, most of the enamel was drilled off, leaving cavity-susceptible dentin.
If your crown does fall off, remember that you need to get to your dentist as soon as possible!!! Don’t put it back on and then neglect going to visit your dentist. You could infect the tooth and in the worst case scenario you may need to have the tooth extracted a few years down the line.