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Effect of Dehydration of Calcium Hydroxylapatite on its Cell Parameters
Author(s) -
Verbeeck R. M. H.,
Heiligers H. J. M.,
Driessens F. C. M.,
Schaeken H. G.
Publication year - 1980
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19804660109
Subject(s) - hydroxylapatite , dehydration , chemistry , calcium , diffusion , fluoride , solid state , materials science , nuclear chemistry , inorganic chemistry , biochemistry , thermodynamics , organic chemistry , physics , enzyme
Hydroxylapatite samples with different Ca/P ratio's were prepared by solid state reaction. Heating at different temperatures under P H 2 O= 5 mm Hg resulted in different degrees of dehydration. Cell parameters a and c were determined with a high accuracy and appeared to decrease with the OH content. The samples were stable in air at room temperature which disproves the theory that the caries reducing effect of fluoride would be due to the inhibition of diffusion in hydroxyapatite.