Radiopaque, EZ-Fill cement is compatible with all bonding agents and composites. Subsequent composite techniques may be performed immediately. You need at least one tooth. I sometimes find that there are air bubbles and voids in the core. Use a matrix and a syringe to avoid this situation and apply the core material under pressure.
Stainless steel is a more resilient metal, but titanium alloy is stronger.
However, the trade-off for the stronger metal is that titanium is more brittle and is prone to breakage. Most dentists use stainless steel posts. A post is used to retain the core material, which provides support for the restoration of an endodontically treated tooth. Pins are used to support core build-up materials and are placed in the coronal dentin, not in the root canal. Leave at least 5 mm apically to prevent complications and to deliver a tight endodontic seal.