Abstract
THE study of the structure of teeth by X-ray diffraction methods1 has shown that the apatite crystals of the enamel are preferentially oriented whereas those of the dentine are arranged at random. The enamel orientation is such that the crystals tend to have the [001] direction (that is, the hexagonal axis) in common.
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References
J. Thewlis, Brit. J. Radiol., 5, 353 (1932). Brit. Dental J., 57, 457 (1934). Phil. Mag., 19, 291 (1935).
Mrs. Mellanby, ” Diet and the Teeth”, Part III. Spec. Rep. Ser. Med. Res. Council, London, No. 191, p. 38 et seq., p. 100 et seq. (1934).
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THEWLIS, J. X-Ray Examination of Tooth Structure. Nature 137, 828 (1936). https://doi.org/10.1038/137828a0
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DOI: https://doi.org/10.1038/137828a0
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