Extensive research has been done regarding endodontic posts. In the majority of cases, only a few aspects are investigated. A literature review was performed regarding the various aspects that have to be considered when selecting a particular endodontic post for clinical application. The dentist has to realize that the ideal endodontic post (still) does not exist for all clinical situations. Most important is to achieve both a durable and a predictable result, sparing as much as possible of the root itself. Based on the literature, data presenting the requirements for an ‘ideal’ endodontic post are formulated.