A Strength Behavior Approach for 3Y-TZP Ceramics Dental Implants Based on Finite Element Simulations

This study is based on the numerical simulation of mechanical response yttrium-stabilized zirconia ceramic (3Y-TZP) dental implants as a function their intrinsic geometry and masticatory loads. Samples (n=20) 3Y-TZP ceramics were compacted, sintered at 1500 °C - 2h, characterized by relative density, X-Ray diffraction (XRD), scanning electron microscopy (SEM). The elastic parameters (modulus elasticity Poisson ratio), used in simulations, measured Impulse Excitation Technique, bending strength was obtained using piston-on-three-balls testing. An authorial implant design and, comparatively, commercial CAD models this an initial typical adult mandible anatomy. From CAE techniques, finite element generated for all geometries. Loading cases considered different intensities (100N to 500N) orientation angles (45° or 90°) reproduce human efforts. predictions compared with simulations gold-standard titanium-based implants. investigated presented high densification (> 99%), microstructure formed submicron equiaxed tetragonal grains. average from testing 1192 ± 99 MPa. For both geometries, showed less than 550 MPa, which, turn, independent load value angle. All are 50% inferior corresponding flexural values preliminarily enable applications without fracture risk.