Phase Development During Setting and Hardening of a Bone Cement Based on α-Tricalcium and Octacalcium Phosphates

In this study, the phase development in the cement system α-TCP–OCP with phosphoric acid as a setting liquid was studied. The most promising formulation of α-TCP (60 wt%) and OCP (40 wt%) is proposed. This cement has the following characteristics: setting time 10 min, pH = 6.7, the compressive stren...

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Bibliographic Details
Published in:Journal of biomaterials applications 2012-05, Vol.26 (8), p.1051-1068
Main Authors: Komlev, Vladimir S., Fadeeva, Inna V., Barinov, Sergey M., Rau, Julietta V., Fosca, Marco, Gurin, Alexey N., Gurin, Nikolay A.
Format: Article
Language:English
Subjects:
Bone Cements
Calcium Phosphates - chemistry
Cements
Compressive strength
Diffraction
Dissolution
Hydrogen-Ion Concentration
Hydroxyapatite
Microscopy, Electron, Scanning
Phosphates
Setting (hardening)
Solubility
Spectroscopy, Fourier Transform Infrared
Surgical implants
X-Ray Diffraction
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Summary:In this study, the phase development in the cement system α-TCP–OCP with phosphoric acid as a setting liquid was studied. The most promising formulation of α-TCP (60 wt%) and OCP (40 wt%) is proposed. This cement has the following characteristics: setting time 10 min, pH = 6.7, the compressive strength about 30 MPa, and high dissolution rate in an isotonic solution; the final wt% composition of α-TCP/DCPD/HA/OCP equals 27/38/20/15. Energy dispersive X-ray diffraction techniques were used for in situ monitoring of the processes taking place in the cement in real time.
ISSN:0885-3282
1530-8022
DOI:10.1177/0885328210390403