The success of endodontic restoration of badly compromised teeth depends on the quality of post and core placement and the extra-coronal restoration. Ensuring that students place posts to acceptable q
1Among 3,315 assessable patients in our data base, 209 died early, due to early toxic death (n = 163, 4.9%), other cancers (n = 8, 0.2%), unknown reasons (n = 17), probable but not formally proven lym