Summary
Apatites containing Na, Mg, and CO3 in amounts occurring in tooth enamel mineral were synthesized by precipitation from aqueous solutions. The X-ray diffraction patterns showed only apatitic reflections, which were somewhat broader than those of enamel. X-ray Guinier photographs resulted in diffuse reflections from which the lattice parameters could not be determined. The infrared (IR) absorption spectrum of the synthetic samples was practically identical with that of tooth enamel. However, after heating the samples for 1/2 h at a temperature between 300 and 600°C, no absorption peak was found at 2340 cm−1 as in the IR spectrum of tooth enamel after heating.
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References
McConnell D (1960) Recent advances in the investigation of the crystal chemistry of dental enamel. Arch Oral Biol 3:28–34
Young RA, Spooner S (1969) Neutron diffraction studies of human tooth enamel. Arch Oral Biol 15:47–63
Elliott JC (1973) The problems of the composition and structure of the mineral components of the hard tissues. Clin Ortho 93:313–345
Driessens FCM, Verbeeck RMH (in press) The probable phase composition of the mineral in sound enamel and dentine. Bull Soc Chim Belge
LeGeros RZ (1967) Crystallographic studies of the carbonate substitution in the apatite structure, Ph.D. Thesis, New York University, New York
Holcomb DW, Young RA (1980) Thermal decomposition of human tooth enamel. Calcif Tissue Int 31:189–201
Featherstone JDB, Nelson DGA (1980) The effect of fluoride, zinc, strontium, magnesium and iron on the structure of synthetic carbonated-apatites. Aust J Chem 33:2363–2368
Nelson DGA, Featherstone JDB (1982) Preparation, analysis and characterization of carbonated-apatites. Calfic Tissue Int 34:S69-S81
Arends J, Davidson CL (1975) HPO 42− contents of enamel and artifical lesions. Calcif Tissue Res 18:65–69
Featherstone JDB, Pearson S: An IR method for quantification of carbonate in carbonated-apatites. Unpublished data.
Mayer I, Featherstone JDB (1982) Magnesium in carbonated apatites related to dental enamel. Abstracted. Fifth International Workshop on calcified tissues. Israel
Heijliger JHM, Driessens FCM, Verbeeck RMH (1979) Lattice parameters and cation distribution of solid solutions of calcium and strontium hydroxyapatite. Calcif Tissue Int 29:127–131
Verbeeck RMH, Heijliger HJM, Driessens FCM, Schaeken HG (1980) Effect of dehydration of calcium hydroxyapatite on its cell parameters. Z Anorg Allg Chem 466:76–80
Driessens FCM, Heijligers HJM, Woltgens JHM, Verbeeck RMH (1982) X-ray diffraction of enamel of a freshly erupted human tooth. J Biol Buccale 10:55–61
Driessens FCM, Heijligers HJM, Woltgens JHM, Verbeeck RMH (in press) X-ray diffraction of enamel from human premolars several years after eruption. J Biol Buccale 10
Dowker SEP, Elliott JC (1979) Infrared absorption bands from NOC− and NCN2− in heated carbonate containing apatites prepared in the presence of NH+ 4 ions. Calcif Tissue Int 29:177–178
Santos M (1979) Estudio por metodos fisicos de la morfologica y estructura de los fosfatos calcicos de los calculos renales, Ph.D. Thesis, University of Madrid, Madrid
LeGeros RZ (1974) The unit-cell dimensions of human enamel apatite: Effect of chloride imcorporation. Arch Oral Biol 20:63–71
Baud CA, Very JM (1975) Ionic substitutions in vivo in bone and tooth apatite crystals. Colloq Intern CNRS No 230, Paris
Nelson DGA (1981) The influence of carbonate on the atomic structure and reactivity of hydroxyapatite. J Dent Res 60:1621–1629
Driessens FCM (1982) Mineral aspects of dentistry. S. Karger, Basel
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Featherstone, J.D.B., Mayer, I., Driessens, F.C.M. et al. Synthetic apatites containing Na, Mg, and CO3 and their comparison with tooth enamel mineral. Calcif Tissue Int 35, 169–171 (1983). https://doi.org/10.1007/BF02405026
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DOI: https://doi.org/10.1007/BF02405026