When a tooth is too badly damaged to be repaired using a filling, the dentist must cover it with a crown in order to prevent further damage. Crowns are highly recommended for teeth which have undergone root canal treatment. They may also be used to:
A crown can be made of porcelain on a metal base, of porcelain only or of metal (gold), when esthetic aspects are of no concern. Moreover, some devices now enable dentists to create custom-made ceramic crowns in their own office. Before fitting a crown, it may be necessary to perform root canal treatment in order to install a pin (inlay core) onto which the crown will be fixed.
The longevity of a crown varies according to:
This type of bridge, also known as a fixed dental prosthesis, is permanently anchored to adjacent teeth using a porcelain-covered metal frame. It makes it possible to replace one or several teeth.
Source: Ordre des dentistes du Québec