A novel polymer infiltrated ceramic dental material

Objectives luate the mechanical behavior of a prototype porous ceramic interpenetrating polymer–ceramic material containing 15–20% polymer. s sample preparation, elastic modulus, hardness, stress–strain relationship and indentation creep response were measured by a nanoindentation system. Fracture toughness was measured by the single-edge-notched beam (SENB) method. SEM was employed to observe the fractured surface and analyze the fracture mechanisms. s lymer infiltrated ceramic material has elastic modulus, hardness, and fracture toughness values of 30.14 GPa, 2.59 GPa, and 1.72 MPa m1/2, respectively. The material illustrates a significant indentation size effect for elastic modulus and hardness, and has similar indentation creep behavior to human enamel. Manufacturing procedures such as the density of pre-infiltrated porous ceramic and processing pressure influence the final properties of the material. icance olymer infiltrated ceramic material is anticipated to become a new member of the dental CAD/CAM family.