Resubmit to be more specific. crown in permanently or should i worry? thank you for all your help. sorry for previous confusion i recently had a crown put on my upper molar because the tooth was cracked. the dentist said he cemented the porcelain crown in

Your : Your are very logical and thats for reposting your question. You have a right to be concerned becuase of the confusion. I will try to answer again now knowing a few more items. Duralon is a permanent cement. It does not wash out like a true temporary cement in a short period of time. I do not use it for cementing crowns, but rather as a "base" under large amalgam restorations. There are many final cements out there.. Each dentist will use what they feel works best for them. That is a matter of personal preference. I do not think he will be able to remove the crown without damaging your tooth or the crown. Duralon cement is not that soft. But why should he remove the crown? Does the tooth bother you? Are you in pain? If not, then the the crown should not have to be removed. I think the confusion in your prior post was that the tooth may have needed root canal therapy, and that would have been done before cementing the crown with final cement. I understand your concerns regarding leakage due to your prior problems, but iirc, that bridge had temporary cement. This is something completely different. As dr wollock explained in his prior answer, there are other cements out there that may be less soluble than duralon. Ultimately, the success of the crown depends on the marginal fit. An ill fitting crown will not stay in place for long no matter what cement your dentist uses. I hope this clears up any confusion and puts your mind to rest.

Durelon : Durelon has many uses in the cementation category of dentistry, but i would not consider it as a "permenant" cement. By definition, if it is a permenant cement, then the dentist should not be able to remove the crown. Speak with your dentist and if he feels he can remove this crown without damaging the underlying tooth, then have him remove it and cement it with a permenant cement.

Duralon : Duralon was a popular cement in dentistry. There are newer cements with different properties that may include stronger adhesion and Fluoride release. Duralon was and is considered a "permanent" cement, but a better description would be a final (or non-temporary) cement. Even the newest cements under certain conditions can fail and require a crown to be recemented. As long as the crown is comfortable and the dentist is satisfied with the fit and contour, i would not advise attempting removal of the crown as you risk damaging the crown and/or the tooth beneath the crown. Periodic dental examination and xrays can make sure that all is well with your crowned tooth. You should not lose sleep over this. Happy chewing!

While : While durelon is often marketed to dentists as a temporary cement, it is quite often used as a permanent luting agent. In my opinion, this means it is fantastic as a temporary (won't easily come off) but acceptable as a permanent cement too. The dentist that had my practice before i bought it used durelon 100% of the time for his permanent cement. His crowns stayed on very well.

No worries: The objectives of the permanent cementation process are to permanently secure the crown onto the tooth and seal the remaining dentin.