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The 3mol% yttria stabilized tetragonal zirconia polycrystals (3Y-TZP) powder had three particle size distributions, while the fine one was lower than 100nm. The 3Y-TZP compact was prepared by dry-pressing under pressures ranged from 10 to 30MPa and then presintered at 1250°C for 2h. The matrix dry-pressed under the pressure of 20MPa had a porosity of 16.7% and could be easily processed by computer aided design and computer aided manufacturing (CAD/CAM), and which had been infiltrated by the La2O3–Al2O3–SiO2 glass at 1200°C for 4h. The flexural strength and fracture toughness of the composite were 710.7MPa and 6.51MPam1/2, respectively. The low shrinkage (0.3%) of the composite can satisfy the net-shape fabrication standard. XRD results illustrated that zirconia in the La2O3–Al2O3–SiO2 glass-infiltrated 3Y-TZP all-ceramic composite was mainly in the tetragonal phase. SEM and EDS results indicated that the pores of the matrix were almost filled by the La2O3–Al2O3–SiO2 glass

La2O3–Al2O3–SiO2 glass-infiltrated 3Y-TZP all-ceramic composite for the dental restorative application