A crown (sometimes called a "cap") is a shell that your dentist makes to fit right over the top of a tooth, strengthening it.
Probably because a tooth has been weakened by extensive dental decay, large fillings, accidental damage or root canal treatment. A crown holds together the remaining tooth and any dental filling material, making it stronger. A crown can also be used to greatly improve the appearance of a tooth that is damaged, discoloured, mis-shapen or misaligned.
There are several different types of crown that your dentist might recommend:
A crown should last for many years. We are so confident of the quality of our crowns that we guarantee them for 2 years.
Please see our price list for reference.
Your dentist will shape the tooth by removing some of the outer surface. Sometimes the dentist may have to "build up" the core of the tooth (particularly if a lot has broken off) with filling material or put a post into the tooth so that the crown has something to sit on. Next, they will take an "impression" (ie make a mould of) your teeth and take a measurement of how you bite together. The dentist will record the shade of the adjacent teeth so that the new crown (nb: not for a metal crown) is an exact match for the other teeth. Your dentist will fit a temporary crown while the permanent crown is being made so that the tooth looks and feels the same between visits.
When the tooth has already been root treated it isn't necessary, but in most cases your dentist will need to anaesthetise the tooth before working on it so that you don't feel anything.
The impression, bite measurements and shade information are passed to a specialist dental laboratory. The laboratory makes a model of your mouth: the crown will be constructed on this to ensure that it fits in perfectly with your other teeth. About a week or two after your first appointment your dentist will see you for a second time to check that your new crown is a good fit and that the shade is a good match for your other teeth. The crown is then fixed in place using special dental cement.
If your dentist has suggested a crown then this is probably because the tooth is weak (see above). It is unlikely that alternative treatments such as fillings , inlays or veneers would be effective (the tooth may well break after they have been placed) If alternatives are viable in your case then your dentist will discuss the options with you.