Numerical analysis of the mechanical behavior of ceramic dental implants based on Ce-TZP/AlO composite.

This study aimed to identify the potential use of the ceramic composite ZrO(CeO)-AlO as a dental implant due to its intrinsic geometry and different masticatory loads based on finite element simulations. Ceramic samples were sintered at 1500 °C-2h, and characterized: The mechanical properties of the ceramic composite (hardness, fracture toughness, flexural strength, Young's Modulus, and Poisson ratio) were determined, in addition to the relative density and its structural characteristics. Commercial dental implant designs (incisal and third-molar) on CAD models were used in this study as an initial implant geometry applied in a typical simulated mandible anatomy.

Mechanical properties of ceramic composites based on ZrO co-stabilized by YO-CeO reinforced with AlO platelets for dental implants.

Objectives: The objective of this work was the development and characterization of a ceramic composite based on (Ce,Y)-TZP/AlO aiming an application on dental implants, comparing it with conventional monolithic 3Y-TZP ceramics, currently used for the same type of application.

Methods: Ceramic samples, 3Y-TZP (n = 40) and (Ce,Y)-TZP/AlO (n = 40), were sintered at 1500 °C - 2h and characterized by relative density, X-Ray diffraction (XRD) and microstructure. Then, the samples of both materials were divided into two groups: 1) samples with original (as sintered) surfaces; 2) samples with conditioned, polished, surfaces.