▎ 摘　　要

NOVELTY - A dental material comprises 33-40.5 pts. wt. chromium, 28-35.5 pts. wt. cobalt, 15-18 pts. wt. tungsten, 10-13 pts. wt. molybdenum, 5-8 pts. wt. silicon, 3.5-7.5 pts. wt. modified graphene, 2-3.5 pts. wt. gallium, 0.8-1 pt. wt. yttrium oxide and 0.3-0.5 pt. wt. trace element including tin, niobium and tantalum. The modified graphene is copper-plated graphene having surface loaded with silver ions. USE - Dental material. ADVANTAGE - The dental material has excellent strength and antibacterial property, is nontoxic, harmless and environmentally-friendly, and does not contain precious metals such as gold and platinum. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of dental material, which involves weighing raw materials and then mixing, vacuumizing the mixture and then melting, leaving the mixture and cooling.