期刊
MATERIALS CHARACTERIZATION
卷 59, 期 10, 页码 1522-1525出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2007.12.002
关键词
corals; calcium carbonate; porosity; pore size; bone graft substitute
类别
资金
- Fundacion Cientifica Los Roques
Coral is a material that recently has gained increased attention as a potential bone graft substitute material. The porosity and pore size distribution of the exoskeleton of eight different coral species were investigated by mercury intrusion and microscopy. A classification was established comprising two groups according to porosity: L-type, having low porosity (<20 vol.%), and H-type, having high porosity (>20 vol.%). According to literature, this value of 20 vol.% seems to be a lower porosity limit for successful surgical applications as bone graft substitution material. Pore size distributions are well-defined in three H-type species, each one having a different order of magnitude for the median pore diameter: Porites (order 2), Millepora (order 1), and Manicina (order 0). Tubular and slit pore geometries were suggested after microscopy. (C) 2007 Elsevier Inc. All rights reserved.
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