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Control of the injectability of calcium carbonate-calcium phosphate mixed cements for bone reconstruction

Tadier, Solène and Le Bolay, Nadine and Girod Fullana, Sophie and Rey, Christian and Combes, Christèle Control of the injectability of calcium carbonate-calcium phosphate mixed cements for bone reconstruction. (2009) Key Engineering Materials, vol. 396-398 . pp. 225-228. ISSN 1013-9826

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Official URL: http://www.scientific.net/0-87849-353-0/225/

Abstract

The purpose of this study was to improve injectability and cohesiveness of original calcium carbonate-calcium phosphate mixed (CaCO3-CaP) self-setting paste for bone filling and repair. With this aim in view dry co-grinding was implemented on the solid phase (vaterite and dicalcium phosphate dihydrate) of this cement. A protocol designed to quantify paste injectability has been established and pointed out the synergistic positive effects of solid phase co-grinding treatment on injectability, cohesiveness and setting time of the paste. The improvement of these properties are related to close and homogeneous association of reactive powders and to the decrease of specific surface area favoring the powders hydration process enhancing setting reaction rate. In addition, the particle size decrease and morphology modification improved flowability of the paste which results in a low and constant (320 g) force level to extrude the paste.

Item Type:Article
Additional Information:Thanks to Trans Tech Publications editor. The definitive version is available at http://www.ttp.net/ The original PDF of the article can be found at Key Engineering Materials : http://www.scientific.net/KEM/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By: Hélène Dubernard
Deposited On:17 Nov 2008 09:13

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