1. The high-permeability zirconia material for dental use according to claim 1, characterized in that the tetragonal zirconia polycrystalline powder is prepared from the following two raw materials in mole percentage, fully stabilized zirconia powder = 40% 60%; Among them, the mole percentage of yttrium oxide in the tetragonal zirconia polycrystalline powder is 3%; the mole percentage of yttrium oxide in the fully stabilized zirconia powder is 8%.
2. The preparation process of dental high-permeability zirconia material according to claim 4, characterized in that the sintering temperature is 140 (Tl60 (TC).
