In the present study, series of Zn incorporated calcium sulfate bone cements, with different amounts of doped Zn(0, 0.74, 1.97, 3.05, 4.21 wt %) were prepared by mixing a calcium sulfate hemihydrate powder and solutions of zinc sulfate, and the effect of zinc-doping on some physical, physico-chemical, and biological properties of the cements were investigated. Pure calcium sulfate cement was al...

Binder jet three-dimensional (3D) printing has been extensively developed since the early 1990s and is widely applied in various industrial fields. jetting 3D-printed products have anisotropic mechanical properties; however, no study provided a systematic explanation of this mechanism. Herein, we propose that crystal lattice model based on crystallographic logic can explain anisotropy fracture ...

In this study, an injectable bone substitute (IBS) consisting of citric acid, chitosan solution as the liquid phase and tetra calcium phosphate (TTCP), dicalcium phosphate anhydrous (DCPA) and calcium sulfate hemihydrate (CSH) powders as the solid phase was prepared. Four groups containing different percentages (0-30%) of calcium sulfate hemihydrate (CSH, CaSO(4) . 0.5H(2)O) were investigated. ...

Rapid and complete soft tissue healing after tooth extraction minimizes surgical complications and facilitates subsequent implant placement. We used four treatment methods and assessed changes in soft tissue socket closure following tooth extraction in humans. The effects of platelet-rich fibrin-calcium sulfate hemihydrate (PRF-CSH), platelet-rich plasma-calcium sulfate hemihydrate (PRP-CSH), a...

Abstract In this study, the influence of calcium formate (CF) on hydration a synthesized sulfate hemihydrate (HH) powder was investigated. Isothermal calorimetry measurements showed that CF retards reaction HH. This confirmed by XRD stored samples and pore solution analysis. Two retardation mechanisms were identified. The combination laser granulometric experiments revealed firstly, initial dis...

?-Calcium sulfate hemihydrate (?-HH) is an important cementitious material, which can be prepared by hydrothermal method from calcium dihydrate (DH) in electrolyte solution. Study of the conversion kinetics DH to ?-HH NaCl solution helpful for understanding control process. In this paper, X-ray diffraction (XRD) patterns were applied study effect temperature on crystallization determine kinetic...