ParaPost XT Titanium Alloy Post System is a complete family of posts for any clinical situation. A post that's both active and passive in one. Active threads in the coronal section for optimum retention. Passive in the apial section for added safety State-of-the-art universal endodontic post system for all direct and casting techniques. Standardized system with seven sizes including two intermediate sizes. Non-end cutting, depth-calibrated drills for precise canal preparation. Diamond pattern design, multiple venting channels. Threaded, parallel-sided post with rounded, undercut head for direct post/core restoration in one appointment. Ideal for glass-ionomer/composite core restorations which require more retention and more safety.