Problem statement: This study presented bone like apatite formation on yttria stabilized zirconia in Simulated Body Fluid (SBF) through hydroxylation technique. Approach: Sol gel route was used to prepare yttria stabilized zirconia. Then it was hydroxylated with 5M H3PO4 for formation of Zr-OH group. Moreover, the growth rate of calcium and phosphate on zirconia substrate was examined using sim...

The mechanical properties of layered Ce-TZP/Al2O3 composites with laminate and cellular morphologies have been investigated. The strength and toughness increase as the layer thickness decreases, and the amount of transformation in the Ce-TZP layer increases discontinuously at the laminate/cellular transition. Very high strengths (1.1 GPa) and toughnesses (16 MPa?m1/2) have been obtained in some...

Shrinkage behavior and crack formation during firing have been investigated for Al2O3/Ce-TZP composites that have been fabricated by colloidal rolling and folding. These composites show improved sinterability and sinter isotropically after repeated rolling. Interface instability in rolling creates corrugated interfaces with large layer waviness; therefore, rolling can substantially alleviate th...

Background: The quest for newer and stronger materials replacing teeth has resulted in Zirconium oxide's introduction, which possesses excellent mechanical strength toughness. However, uncertainty exists the relationship between its bond surface treatment method adopted mode of failure at interface. Aim - study aimed to evaluate comparison micro-tensile zirconia core all-ceramic layering with d...

Digital Light Processing (DLP) is a promising technique for the preparation of ceramic parts with complex shapes and high accuracy. In this study, 3 mol% yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) UV-curable slurries were prepared printed via DLP. Two different solid loadings (40.5 43.6 vol%, respectively) printing directions investigated to assess influence these parameters on p...

Abstract Background Resistance to β-lactams amongst PSA is common with roughly 20% of isolates demonstrating resistance TZP. This can lead delays in the time appropriate empiric therapy. While rapid diagnostics identify at earlier points, they fail detect β-lactam mechanisms this pathogen. Though risk factors for TZP (TZP-R) have been identified, co-resistance traditional anti-PSA common, so de...

This study aimed to evaluate the survival rates of several external hexagon implants directly connected zirconia crowns after thermomechanical fatigue. The deformation hexagons and integrity were also evaluated. A monolithic crown (Y-TZP) four different dental (n = 10, N 40) mounted together embedded in polyurethane. specimens subjected cycling for 2.5 × 106 cycles, at 3.0 Hz frequency, 200 loa...

An unexpected side effect of some classes of anticoagulants has been osteoporosis which may be, at least in part, related to deranged mesenchymal stem cell (MSC) function. The aim of the present study was to compare the effect of fondaparinux (FDP), a novel antithrombotic with a traditional widely used low molecular weight heparin, tinzaparin (TZP) on MSC proliferation and differentiation. MSCs...

We explored the B-C-O system at pressures in the range 0-50 GPa by ab initio variable-composition evolutionary simulations in the hope of discovering new stable superhard materials. A new tetragonal thermodynamically stable phase B4CO4, space group I4[combining macron], and two low-enthalpy metastable compounds (B6C2O5, B2CO2) have been discovered. Computed phonons and elastic constants show th...