Titanium Ti-6AL-4V-ELI is a highly successful material for the fabrication of dental superstructures and implants, on account of its favorable combination of properties such as low specific weight, high strength to weight ratio, high modulus of elasticity, very high corrosion resistance and excellent general biocompatibility.
Ti-6AL-4V-ELI is short for "Extra Low Interstitials" that provide more ductility and better fracture toughness.