Paper Titles
Preparation and Characterization of New Self-Setting Calcium Phosphate Cements Based on Alkali Containing Orthophosphates
p.121
The Mechanical Properties and Microstructures of Cement Formed from Pyrophosphoric and Orthophosphoric Acids
p.125
Improvement of Porosity of a Calcium Phosphate Cement by Incorporation of Biodegradable Polymer Microspheres
p.129
Bioactive Bone Cement Composed of Crystallized Glass Beads and PMMA: Evaluation of Degradation by an In Vivo Aging Test
p.133
Cement from Nanocrystalline Hydroxyapatite: Effect of Sulphate Ions
p.137
Effect of the Composition in β-TCP-MCPM Bone Cement Containing Dense ß-TCP Granules
p.141
A Novel Biomineral Water Based Dental Cement
p.145
Analysis of the Resorption of Calcium Phosphate Cement by Using High-Resolution X-Ray 3-D CT
p.149
In Vitro Aging Test for Bioactive PMMA-Based Bone Cement Using Simulated Body Fluid
p.153

Cement from Nanocrystalline Hydroxyapatite: Effect of Sulphate Ions

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Abstract:

Brushite cement is more soluble than apatite cement in physiological conditions and therefore may be more resorbable in vivo. Brushite cement has been formed previously by mixing β-tricalcium phosphate, water and an acidic source of phosphate ions. However, brushite cement may be formed by the mixture of H3PO4 solution and poorly crystalline precipitated hydroxyapatite (HA). Several additives have been used to alter the physicochemical properties of brushite cement. In this study sulphate ions where added to the cement system by addition of ammonium sulphate to HA during HA preperation. Sulphate ions were found to alter the structure, composition and mechanical performance of cement.

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Bioceramics 17 View Preview

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Periodical:

Key Engineering Materials (Volumes 284-286)

Pages:

137-140

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.284-286.137

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Online since:

April 2005

Authors:

K.J. Lilley, Adrian J. Wright, David Farrar, J.E. Barralet

Keywords:

Brushite, Calcium Sulphate, Cement, Hydroxyapatite (HAP), Mechanical Property

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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