ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Injectable resorbable bone cements for bone void fillings are gaining in interest. Thematerials resorb in vivo with loss of void filling capacity and strength as a consequence. Theobjective with this study is to qualitative determining the dissolution behaviour for a calciumsulphate and a calcium phosphate cement as function of storage time in different storage mediumand correlate to their strength development. Experiments were performed on a calcium phosphatebased cement, Norian SRS, and a calcium sulphate based cement, MIIG X3. In the resorbtion study,the materials dissolution at different pH (3, 5 and 7) was compared over a period of 11 weeks. Thematerials compressive and biaxial flexural strength was measured after aging in phosphate buffersaline for up to 12 weeks. The proposed qualitative method to study dissolution behaviour ofinjectable biomaterials as function of time and medium were evaluated and proved to be useful.Both materials were dissolved after 3 weeks of storage in pH 3. MIIG X3 dissolved faster thanNorian SRS at pH 5. At pH 7 both materials were stable over the test period of 11 weeks. For bothmaterials the strength decreases with storage time. Norian had a higher compressive strength thanMIIG X3 for the first week, after the first week the compressive strength was similar for the twomaterials. MIIG X3 showed a higher flexural strength than Norian during the full test period
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.361-363.315.pdf
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