Purpose. Although several studies evaluating the mechanical properties of Ce-TZP/Al2O3 have been published, to date, no study has been published investigating the bonding protocol between Ce-TZP/Al2O3 and resin cement. The aim of this study was to evaluate the shear bond strength to air-abraded Ce-TZP/Al2O3 when primers and two different cement types were used. Materials and Methods. Two types ...

El calor puede ser una fuente de mejora la fuerza unión (FU) los agentes enlace entre zirconia y un cemento resinoso. Objetivo: Medir FU adhesivos utilizados para cementar zirconia, cuando han sido calentados a 75 1000 C. Materiales Métodos: tres acoplamiento disponibles comercialmente, Single Bond Universal (3M), Monobond-N (Ivoclar Vivadent) Clearfil Ceramic Primer (Kuraray America Inc). Se c...

Manufacturing of advanced ceramic parts exhibiting complex geometries is laborious and expensive. Traditionally, the machining carried out on a so-called ‘green ceramic’: compact composed powder held with help binder. This difficulty due not only to composition material, but also lack methods that determine optimal parameters. The goal this paper apply method based ductile material behavior fee...

It has recently been reported that in the Y203-stabilized tetragonal zirconia phase (TZP) system the addition of a small amount of transition-metal oxides (e.g. CuO, MnO and ZnO) which form a liquid or amorphous grain boundary phase significantly enhances superplasticity [1, 2]. In CuO-added 2Y-TZP abrupt changes have been found in the stress exponent and activation energy across the melting te...

Objectives: Considering the need for intraoral polishing of zirconia restorations, this in vitro study aimed to 1) evaluate 2D and 3D surface roughness different types ceramic after their finishing 2) compare three techniques using kits. Methods: Seventy-two specimens were obtained from two 3Y-TZP zirconia. After sintering, a layer glass-based fluorapatite veneering was applied over 24 one cera...

WC/Y–TZP–Al2O3 hybrid ceramic–matrix composites (CMCs) with dispersed Hadfield steel particles were sintered and then tested at sliding speeds in the range of 7–37 m/s contact pressure 5 MPa. Fast low-temperature sinter-forging allowed obtaining micron-sized WC grains, submicron-sized alumina-reinforced yttria partially stabilized polycrystalline tetragonal zirconia (Y–TZP–Al2O3), evenly distri...

the aim of this study was to assess the surface of yttrium-stabilized tetragonal zirconia (y-tzp) after surface treatment with lasers and airborne-particle abrasion.first, 77 samples of presintered zirconia blocks measuring 10 × 10 × 2 mm were made, sintered and polished. then, they were randomly divided into 11 groups (n=7) and received surface treatments namely, er:yag laser irradiation with ...