Endodontic treatment needed teeth are generally with a presence of carious tissue or have had large restorations in the past. Sometimes the defects cannot be treated with restorative procedures alone, they need the addition of a technique that involves the pulp chamber, such as additional root canal treatment to the teeth. The requirement for extra retention for the core structure and coronal restoration to be performed therefore makes posts essential components in the roots of teeth with structural damage. More often than not endodontically treated teeth remain relatively intact after conservative endodontic treatment. Endodontically treated teeth become more brittle for some reasons and one of the reasons is the masticatory function of the jaws. As a result of this known phenomenon, dental professionals have been looking for strategies to prevent pulpless teeth from breaking. Restoration and reinforcement of pulpless teeth is a crucial preventative step in endodontic therapy. A post may be used in the root of a structurally damaged tooth in which additional retention is needed for the core and coronal restoration. A widely used technique for repairing teeth that have undergone endodontic treatment is post and cores. Retention applied onto the root thorough final restoration using the post and core restoration as a substructure. Therefore, post placement in the root is crucial. In order to ensure retention for a fixed restoration, endodontically treated teeth are frequently treated with posts and cores. Teeth that had gone through endodontic treatment often suffer from severe coronal damage. In order to ensure retention for full or partial coverage restoration, these teeth may require a coronal substructure or core for retention of a full or partial bonding restoration. Generally, primary retention feature of a core is an intraradicular post. Posts and cores are routinely used for endodontically treated teeth. This article provides a review presentation about utilization of post systems on the pulpless tooth.