The post-and-core is a non-independent prosthetic restoration that can be prefabricated or customized with the participation of a prosthetic laboratory. Regardless of the method of preparation, it consists of a crown and a root part, which should be at least equal to the height of the future clinical crown of the tooth. When preparing a tooth for a post-and-core, it is extremely important to mantain the maximum amount of biomechanically efficient supragingival hard tooth tissue. There are various types of post-and-cores. The most popular are cast metal customized post-and-cores, as well as prefabricated fiberglass inserts with a specific conicity. The development of digital CAD/CAM technology has enabled the use of modern flexible materials for the production of post-and-cores. Unfortunately, there are still few articles on this topic. Because of the possibility of using both analog and digital methods, the dentist is able to offer the patient many prosthetic treatment options. Modern dental materials enable the use of new therapeutic solutions, which improves the dentist’s work and increases the comfort of patient’s treatment.