Fluorapatite and Hydroxyapatite Heat-Treated Coatings for Dental Implants
作者： H. W. Denissen , H. M. De Nieuport , W. Kalk , H. G. Schaeken , A. Van Den Hooff
DOI: 10.1007/978-94-011-2896-4_17
关键词:
摘要: Sintered fluorapatite and hydroxyapatite ceramic implants have been shown to be non-degradable in animal human research. It was found however that plasma-sprayed coatings of degraded vivo, possibly because the lost almost 50% its crystallinity during plasma-spraying procedure. A heat treatment at 600° C proved method op choice reconstitute coating promote transformation α -tricalcium phosphate into more stable β phosphate. Fluorapatite did not loose their had added advantage stability due fluoride ion. The solubility vitro heat-treated were compared sintered untreated coatings. Heat reduced dissolution rate which originally 92%, only 9%, while 13% dissolve.
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