The materials involved in all-ceramic tooth restoration are all dental special materials, which have been fully verified and applied through strict experiments and clinical trials by experts at home and abroad. Under normal circumstances, there is no measurable toxicity to human body, so there is no harm to human body. All-ceramic teeth are harmless to the body, but to make all-ceramic teeth, only by choosing authoritative professional institutions can we ensure the effect and quality of all-ceramic teeth restoration. At present, the commonly used porcelain crown materials for clinical oral restoration in China mainly include: metal materials: dental nickel-chromium alloy, gold-platinum alloy or pure gold, which constitute the base crown (also known as inner crown) of porcelain crown; Porcelain material: dental high-temperature porcelain powder, generally imported, sintered into porcelain crown at high temperature; Adhesives: The commonly used adhesives in dental restoration include zinc phosphate cement, glass ions, adhesive resin, etc. The materials involved in all-ceramic tooth restoration are special dental materials that have been fully verified and applied through rigorous laboratory and clinical experiments. Under normal circumstances, there is no measurable toxicity to human body, so there is no harm to human body.