Results 181 to 190 of about 10,895 (223)

Nanostructure of Calcium Silicate Hydrates in Cements

Physical Review Letters, 2010
Calcium silicate hydrate (CSH) is the major volume phase in the matrix of Portland cement concrete. Total x-ray scattering measurements with synchrotron x rays on synthetic CSH(I) shows nanocrystalline ordering with a particle diameter of 3.5(5) nm, similar to a size-broadened 1.1 nm tobermorite crystal structure.
Skinner, L. B., Chae, S. R., Benmore, C. J., Wenk, H. R., Monteiro, P. J. M.   +4 more
openaire   +3 more sources

In vivo biocompatibility and biomineralization of calcium silicate cements

European Journal of Oral Sciences, 2018
A new mineral trioxide aggregate (MTA) material has been developed with a modified composition that requires investigations to support its clinical use. This study evaluated the biocompatibility and biomineralization of this new MTA material and compared it with that of two other MTA cements over time.
Francine Benetti, João E. Gomes‐Filho, Juliana M. de Araújo Lopes, Jéssica G. Barbosa, Rogério C. Jacinto, Luciano T. A. Cintra   +5 more
openaire   +3 more sources

Development of calcium silicate/calcium phosphate cement for bone regeneration

Biomedical Materials, 2007
A new type of composite bone cement was prepared and investigated by adding calcium silicate (CS) to calcium phosphate cement (CPC). Low-crystalline CS prepared by heat treatment at low temperature had excellent bioactivity and degradability. Adding CS to CPC did not affect the phase composition and chemical structure of CPC, and had a little effect on
Han, Guo, Jie, Wei, Yuan, Yuan, Changsheng, Liu   +3 more
openaire   +2 more sources

Influence of hydraulic cement substitutes on carbonation of calcium silicate cement

Construction and Building Materials
Ki-Yeon Moon, Jin-Sang Cho, Solmoi Park   +2 more
exaly   +2 more sources

The use of calcium-silicate cements to reduce dentine permeability

Archives of Oral Biology, 2012
To evaluate in vitro the effectiveness of different calcium-silicate (CS) cements specifically designed for dentine permeability reduction.Fifty dentine discs were prepared from caries free human molars extracted for surgical reasons. The treatment consisted in applying two different experimental CS cements on dentine surface.
GANDOLFI, MARIA GIOVANNA, F. Iacono, PIRANI, CHIARA, PRATI, CARLO   +3 more
openaire   +3 more sources

A hybrid zinc–calcium–silicate polyalkenoate bone cement

Biomaterials, 2003
A novel bone cement composed of sintered zinc-calcium-silicate phosphate and hybrid polyalkenoates has been developed. Synthesis and formulation of glass fillers, monomers and polymers as well as formulation of the cement were described. The effects of sintering, polymer content, glass powder/polymer liquid (P/L) ratio and comonomer on compressive ...
Dong, Xie, Dingsong, Feng, Il-Doo, Chung, Alan W, Eberhardt   +3 more
openaire   +2 more sources

Composition and density of nanoscale calcium–silicate–hydrate in cement

Nature Materials, 2007
Although Portland cement concrete is the world's most widely used manufactured material, basic questions persist regarding its internal structure and water content, and their effect on concrete behaviour. Here, for the first time without recourse to drying methods, we measure the composition and solid density of the principal binding reaction product ...
Andrew J, Allen, Jeffrey J, Thomas, Hamlin M, Jennings   +2 more
openaire   +2 more sources

Calcium Phosphate Silicate and Calcium Silicate Cements Suppressing Osteoclasts Activity Through Cytokine Regulation

Journal of Nanoscience and Nanotechnology, 2018
Calcium phosphate silicate bone cement (CPSC) can stimulate osteoblast proliferation and promote osteogenesis, but how CPSC supress osteoclast activity through cytokine regulation is not clear. In the current study, we synthesized CPSC by incorporating monocalcium phosphate (MCP) into calcium silicate cement (CSC), and analyzed the effects of CSC and ...
Wei, Yuan, Xin, He, Jingshu, Zhang, Yadong, Chen, Tianxing, Gong, Yue, Zhu   +5 more
openaire   +2 more sources

Physicochemical Properties of Calcium Silicate Cements for Endodontic Treatment

Journal of Endodontics, 2009
The purpose of this study was to examine the physicochemical properties of novel calcium silicate cements (CSCs) prepared by using a sol-gel method.The compressive strength, morphology, and phase composition of various cements were evaluated after mixing with water, in addition to setting time and pH value.As solid phases, the sol-gel-derived powders ...
Chun-Cheng, Chen, Chia-Che, Ho, Chan-Hen, David Chen, Shinn-Jyh, Ding   +3 more
openaire   +2 more sources

Calcium silicate bioactive cements: Biological perspectives and clinical applications

Dental Materials, 2015
To introduce and to examine the research progress and the investigation on hydraulic calcium silicate cements (HCSCs), well-known as MTA (mineral trioxide aggregate).This review paper introduces the most important investigations of the last 20 years and analyze their impact on HCSCs use in clinical application.HCSCs were developed more than 20 years ...
PRATI, CARLO, GANDOLFI, MARIA GIOVANNA
openaire   +2 more sources