My crown fell off

Dental Prostheses

Dental prostheses are used to replace the visible portions of teeth, the portion used for chewing and biting, which also happens to be the portion that is visible when we are smiling. Dental prostheses come in the form of crowns, and when more crowns are next to each other, they are called a bridge. A full set of crowns replacing an entire arch of teeth is referred to as a denture, or a partial denture if it is anchored to still existing teeth. Dental prostheses may be adhered, with dental adhesive, to an existing, living tooth, or a dental implant, or they can be anchored to adjacent teeth.

Faulty Crowns and Teeth

The reason patients call to book an emergency appointment that involves dental prostheses is because a crown has fallen off. There are a couple of things that can go wrong that will make it so that a crown falls off, the tooth underneath the crown can deteriorate further, although this is the rarest of situations.

The crown itself can be faulty, and can be fitted poorly, which will make it so that even weaker occlusal forces exerted when biting and chewing will make it loosen, and a stronger bite may make it so that the crown comes off altogether. If this is the case, you should demand that a proper crown be made, and possibly have it fitted by someone else. A faulty crown may occur, but it should be apparent very quickly, within a matter of days, if this is the reason for the crown falling off. This situation also does not occur frequently, and a good technician will spot faulty material or a faulty crown right as it comes out of the oven.

Bonding Issues

The most frequently occurring issue by far is that the dental adhesive did not hold. This can be due to the fact that often dentists will have a trial period where only temporary cement will be given, and this will tend to confuse patients sometimes. The reason for using temporary cement is to give a trial period, and not have to ruin the abutment of an implant or the remains of a living tooth in the process of removing a crown, if that said crown is not desirable for the patient (this can because of shape or color not being quite what they imagined, or maybe they have decided they do not want the crown at all). A crown takes roughly two weeks to make, and in the meanwhile, dentistries usually hand out temporary crowns to hold you over, and these are always cemented with temporary cement. These crowns are not meant to last, and neither is the adhesive. If the crown is temporary, and the cement used was also temporary cement, than there is a problem, and if the crown pops off, you should come and have it recemented. Whatever you do, do not lost the crown, as that will cause problems in the future, and bring it with you for your next appointment, which you should book as soon as it comes off.