Zirconia discs

Experience Esthetics Strength & Efficiency 3D-Pro multilayer zirconia is a dental restorative material designed for crowns and bridges, offering a flexural strength range of 65-1100 MPa and a fracture resistance of up to 6 MPa 1/2. It features a high-speed sintering cycle, ensuring strength, translucency, and aging resistance simultaneously. Degradation and Transformation: Degradation of zirconia occurs due to tetragonal to monoclinic transformation, especially at temperatures of 200-300°C, leading to micro and macro-cracking. The addition of stabilizers such as yttria can slow down this transformation. Crystal Phase Systems: Zirconia exhibits different crystal phases (monoclinic, tetragonal, and cubic) depending on temperature and yttria content. Higher yttria content stabilizes tetragonal and cubic phases, influencing translucency and mechanical properties. Thermal and Optical Properties: Zirconia has low thermal conductivity and specific thermal expansion characteristics. Co