Glass ceramics that include apatite crystals are used as implant materials. Because most of these glass ceramics are comprised of fluoride-containing glass compositions, the included apatites could be hydroxyapatite, fluorapatite or fluoride-substituted hydroxyapatite. However, these apatites differ in regard to their solubility and thermal stability. The purpose of the current study was to determine the possibilities of distinguishing between these apatities. High resolution solid-state 19F and 31P magic angle spinning (MAS) nuclear magnetic resonance (NMR) spectra of two fluorapatites, a hydroxyapatite and a fluoridated hydroxyapatite have been obtained. Using 31P NMR investigations it is possible to distinguish between calcium apatites and other calcium phosphates, but the distinction between fluoride-containing apatite and hydroxyapatite is not possible. However, 19F high-resolution solid-state NMR investigations permit the distinction between these various apatites. The results of the NMR investigations could be used for the characterization of glass ceramics. The application of those results was demonstrated using a newly developed apatite-containing glass ceramic.
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References
U. GROSS and V. STRUNZ, in Symposium of the European Society of Biomaterials, West Berlin, 1983.
T. KOKUBO, in XVI International Congress on Glass, Madrid, 1992 Vol. 1, p. 119.
M. Okazaki, T. Aoba, Y. Doi, J. Takahashi and Y. Moriwaki, J. Dent. Res. 60 (1981) 845.
L. Heling, R. Heindl and B. Merin, J. Oral Implantol. 9 (1981) 548.
S. D. Davis, D. F. Gibbons, R. L. Martin, S. R. Levitt, I. Smith and R. V. Harrington, J. Biomed. Mater. Res. 6 (1972) 425.
E. LUGSCHEIDER. T. WEBER and M. KNEPPER, in NTS Conference, Cincinatti, 1988.
W. J. A. Dhert, ESB News 1 (1992) 4.
W. J. A. Dhert, C. P. A. T. Klein, J. G. C. Wolke, E. A. Van der Velde, K. De Groot and P. M. Rozing, J. Biomed. Mater. Res. 25 (1991) 1183.
J. Herzfeld and A. E. Berger, J. Chem. Phys. 73 (1980) 6021.
D. Fenzke, B. Maess and H. Pfeifer, J. Mag. Resonance 88 (1990) 172.
D. Ehrt and C. Jäger, Z. Phys. Chem. Neue Folge 159 (1988) 89.
E. J. Duff, Chem. Ind. (London) 8 (1974) 349.
G. Pietzka and R. Ehrlich, Z. Analyt. Chemie 133 (1951) 84.
U. Haeberlen, in “High resolution NMR spectroscopy in solids selective averaging” (Academic Press, New York, San Francisco, London, 1976).
U. HAUBENREISSER, Habilitation thesis, FSU Jena (1986).
A. R. GRIMMER, in Proceedings of XXth Congress Ampere, Tallinn, 1978, p. 483.
A. R. Grimmer, Spectrochimica Acta 34A (1978) 941.
T. M. Duncan and D. C. Douglass, Chem. Phys 87 (1984) 339.
G. L. Turner, K. A. Smith, R. J. Kirkpatrick and E. Oldfield, J. Mag. Resonance 70 (1986) 2637.
A. Nebelung and M. Vogt, Sprechsaal 119 (1986) 566.
S. Naray-Szabo, Z. Krist. 75 (1930) 387.
M. I. Kay and R. A. Young, Nature 204 (1964) 1050.
K. Sudarsanan and R. A. Young, Acta Crystallog B, 34 (1978) 1401.
C. Jana and W. Höland, Silic. Ind. 56 (1991) 215.
C. JANA, W. GÖTZ, G. CARL, P. WANGE, J. VOGEL and W. HÖLAND, in Transactions of the Fourth World Biomaterials Congress, Berlin, 1992, p. 515.
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Braun, M., Hartmann, P. & Jana, C. 19F and 31P NMR spectroscopy of calcium apatites. J Mater Sci: Mater Med 6, 150–154 (1995). https://doi.org/10.1007/BF00120291
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DOI: https://doi.org/10.1007/BF00120291