What can I do for a permanent crown that has come loose from a non decayed tooth

Paul,
You have to go to the dentist and have him recement it. Depending on how long it's been on the tooth the fee should be minimal if you see the dentist who originally cemented it.

Thank you for answering my dental question. I have 1 more question to ask in this matter. Its not possible to go to the dentist who put crown in, for it was done in another state. Can u give me the cost of having a dentist cement a crown that has come loose?

Honestly Paul it all depends on where you are and how money hungry the dentist you see is. I'm guessing under $100. Remember, I am in Canada so our fees are different than in the USA.

You could phone a few local offices and get a rough estimate over the phone.

The dentist might decide you need a new crown, as the tooth might have a bit of decay or chipping on it (the crown must fit VERY close to the tooth to last) that's about 1000

.bro just eat me irl it works.