摘要：We are very often confronted in dental daily practice with the clinical situations where important loss of hard dental structure is present and direct restoration is required. In these cases, armed odontal direct restauration can be performed, using additional retention systems. The restoration of the coronal part in non-vital teeth has certain specific aspects and one of the most used endodontic anchorage is the metal threaded prefabricated posts. Current techniques and materials allow the dentist to fulfill all the clinical requirements, in terms of resistance to occlusal stress and the esthetic aspect of the restoration.
关键词：direct odontal restoration ; non-vital tooth ; screw metal post
