Paper Title:
Control of the Injectability of Calcium Carbonate-Calcium Phosphate Mixed Cements for Bone Reconstruction
  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.

  Info
Periodical
Key Engineering Materials (Volumes 396-398)
Main Theme
Edited by
Marcelo Prado and Cecília Zavaglia
Pages
225-228
DOI
10.4028/www.scientific.net/KEM.396-398.225
Citation
S. Tadier, N. Le Bolay, S. Girod Fullana, C. Rey, C. Combes, "Control of the Injectability of Calcium Carbonate-Calcium Phosphate Mixed Cements for Bone Reconstruction", Key Engineering Materials, Vols. 396-398, pp. 225-228, 2009
Online since
October 2008
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Price
$32.00
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