Crystal Structure Studies of Human Dental Apatite as a Function of Age
Abstract
Studies of the average crystal structure properties of human dental apatite as a function of the tooth-age in the range of 5-87 years are reported. The crystallinity of the dental hydroxyapatite decreases with the tooth-age. The a-lattice constant that is associated with the carbonate content in carbonate apatite decreases with the tooth-age in a systematic way, whereas the c-lattice constant does not change significantly. Thermogravimetric measurements demonstrate an increase of the carbonate content with the tooth-age. FTIR spectroscopy reveals both, B and A-type carbonate substitutions with the B-type greater than the A-type substitution by a factor up to ~5. An increase of the carbonate content as a function of the tooth-age can be deduced from the ratio of the v2 CO3 to the v1 PO4 IR modes.
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Cite
@article{arxiv.0806.1233,
title = {Crystal Structure Studies of Human Dental Apatite as a Function of Age},
author = {Th. Leventouri and A. Antonakos and A. Kyriacou and R. Venturelli and E. Liarokapis and V. Perdikatsis},
journal= {arXiv preprint arXiv:0806.1233},
year = {2008}
}
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17 pages