When enough tooth structure does not exist to ensure retention and resistance form, then post-and-core restoration is required to replace missing tooth structure.Many factors are involved in determining the type used and how the procedure is completed. Post and cores have many variables in terms of which systems, materials,designs and techniques are used. This book focuses on imparting the information about the materials and designs to create the post and core that will best help retain the full-coverage restoration and minimize detrimental forces on the tooth.