There are many kinds of materials to make porcelain teeth, so everyone is confused and doesn't know which material is suitable for them. Many people choose zirconia all-ceramic teeth, so how hard are zirconia all-ceramic teeth? Can you eat hard food? According to experts from the professional plastic surgery hospital, the porcelain crown restoration materials are mainly considered from the aspects of biocompatibility, strength and aesthetics, and now the popular zirconia all-ceramic teeth are excellent in these three aspects. Zircon is a natural mineral, also known as zircon. Mainly used in national defense and aerospace industry, its strength, refractive index and dispersion value are second only to diamonds, and it can withstand high temperatures above 3000 degrees. It is a gem second only to diamonds! Zirconium dioxide used for clinical repair now belongs to synthetic zirconium, and its materials are mainly baddeleyite and zircon, and it is made into finished products through high-density molding, sintering and other processes. Experts say that zirconia has excellent mechanical properties, especially fracture toughness, which is much higher than traditional alumina materials. The bending strength of alumina is 665,438+00 ~ 680 MPa, while that of zirconia can reach over 900Mpa. Some reported materials can reach about 1200 MPa, and the fracture toughness (which can be understood as the shear force on the bridge body of porcelain bridge when biting hard objects) can reach 150Mpa. In addition, the melting point of zirconia is 27 10 degrees. If some oxides such as Mg, Y and Ca are added, the melting point temperature can be reduced to 2500 degrees, and tetragonal zirconium can effectively exist at room temperature at this temperature. Simply put, it is like a tightly woven bamboo basket. Under the action of external force, it will simply deform to cushion the force, but it will not break. How hard are zirconia all-ceramic teeth? Can you eat hard food? Now you can rest assured. However, related projects still suggest that you choose a professional beauty hospital.