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HomeMaterials Science ForumMaterials Science Forum Vols. 727-728Effect on Mechanical Strength of Tricalcium...

Effect on Mechanical Strength of Tricalcium Phosphate Cement by Additions of Sodium Alginate

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Abstract:

The Calcium Phosphate Cement (CPC) are bone substitutes with great potential for use in orthopedics, traumatology and dentistry due to its biocompatibility, bioactivity and osteoconductivity, and form a paste that can be easily shaped and placed into the surgical site. However, CPCs have low mechanical strength, which equals the maximum mechanical strength of trabecular bone. In order to assess the strength and time to handle a CPC composed primarily of alpha phase, were added sodium alginate (1%, 2% and 3% wt) and an accelerator in an aqueous solution. The cement powder was mixed with liquid of setting, shaped into specimens and evaluated for apparent density and porosity by Archimedes method, X-ray diffraction and compressive strength. A significant increase in compressive strength by adding sodium alginate was verified.

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Advanced Powder Technology VIII

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Periodical:

Materials Science Forum (Volumes 727-728)

Pages:

1181-1186

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.727-728.1181

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Online since:

August 2012

Authors:

W.T. Coelho, Juliana Machado Fernandes, Rafaela Silveira Vieira, Mônica Beatriz Thürmer, Luis Alberto Santos

Keywords:

Calcium Phosphate Cement (CPC), Compression Resistance, Sodium Alginate

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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