Post And Core
A post and core is a type of dental restoration that is utilized when there is inadequate tooth structure remaining to support a traditional restoration. A small rod, usually metal, is inserted into the root space (root canal) of the tooth and protrudes from the root a couple of millimeters. This rod is referred to as a post. The post is then used to hold a filling, or core, in place. Without this post there would not have been enough tooth structure remaining to hold the filling required. Oftentimes, the post and core is covered with a crown, however it does not need a crown to function.