A crown is an artificial restoration that fits over the remaining part of a prepared tooth, making it strong and giving it the shape of a natural tooth. A crown is sometimes known as a ‘cap’.
Crowns are an ideal way to repair teeth that have been broken, or have been weakened by decay or a very large filling.
In root-filled teeth it may be necessary to insert a post into the tooth root before placing a crown. A post gives support and helps the crown to stay in place. The surface of the tooth may be removed down to the level of the gum.
If a root-filled tooth is not completely broken down, it may be possible for your dentist to build it up again using filling material. This ‘core’ is then prepared in the same way as a natural tooth and the impressions are taken.