期刊
BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO
卷 44, 期 3, 页码 135-145出版社
ELSEVIER
DOI: 10.3989/cyv.2005.v44.i3.382
关键词
alumina; zirconia; zirconia-toughened alumina; graphite; hydroxyapatite; bioactive silicates; bioeutectic; tricalcium phosphate
A strong interest in the use of ceramics for biomedical engineering applications developed in the late 1960's. Used initially as alternatives to metallic materials in order to increase the biocoinpatibility of implants, bioceramics have become a diverse class of biomaterials, presently including three basic types: relatively bioinert ceramics; bioactive or surface reactive bioceramics and bioresorbable ceramics. This review will only refer to bioceramics sensus stricto, it is to say, those ceramic materials constituted for nonmetallic inorganic compounds, crystallines and consolidated by thermal treatments of powders to high temperatures. Leaving bioglasses, glass-ceramics and biocements apart, since, although all of them are obtained by thermal treatments to high temperatures, the first are amorphous, the second are obtained by desvitrification of a glass and in them vitreous phase normally prevails on the crystalline phases and the third are consolidated by means of a hydraulic or chemical reaction to room temperature. A review of the composition, physiochemical properties and biological behaviour of the principal types of crystalline bioceramics is given, based on the literature data and on the own experience of the authors.
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