Behaviour of Calcium Alkali Orthophosphate Cements under Simulated Implantation Conditions

Abstract:

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The setting behaviour, the compressive strength and the porosity of four calcium alkali orthophosphate cements were examined under laboratory conditions (dry) and under conditions similar to those during clinical application (37°C, contact with body fluid). The results showed an increase of the setting times when specimens were covered with simulated body fluid. Especially, the final setting time (FHZ) was significantly higher for three of the four cements. Furthermore, when specimens were stored in SBF for 16h, an extensive decrease of the compressive strength was noted. The porosity was more than twice as high after 16h in SBF and this may be the cause for the great decrease of the compressive strength.

Info:

Periodical:

Key Engineering Materials (Volumes 396-398)

Main Theme:

Edited by:

Marcelo Prado and Cecília Zavaglia

Pages:

213-216

DOI:

10.4028/www.scientific.net/KEM.396-398.213

Citation:

D. Jörn et al., "Behaviour of Calcium Alkali Orthophosphate Cements under Simulated Implantation Conditions", Key Engineering Materials, Vols. 396-398, pp. 213-216, 2009

Online since:

October 2008

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Price:

$35.00

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