Spherical indentation of tooth enamel

Abstract

Spherical indentation measurements were made on enamel surfaces of intact human teeth. From the load versus depth of indentation curve Young's modulus was found to be typically 8.3×1010 Pa and the yield stress to be 3.3×108 Pa. Young's modulus was observed to vary with moisture content and with the orientation of the enamel surface. Viscoelastic behaviour was evident, also depending on the moisture content of the enamel.

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References

  1. 1.

    H. R. Hertz, “Miscellaneous Papers” (Macmillan, London 1896) Chs. 5,6.

    Google Scholar 

  2. 2.

    W. J. Cousins, R. W. Armstrong andW. H. Robinson,J. Mater. Sci. 10 (1975) 1655.

    Google Scholar 

  3. 3.

    W. H. Robinson andS. D. Truman,ibid. 12 (1977) 1961.

    Google Scholar 

  4. 4.

    Idem, unpublished work (1980).

    Google Scholar 

  5. 5.

    R. G. Craig, F. A. Peyton andD. W. Johnson,J. Dent. Res. 40 (1961) 936.

    Google Scholar 

  6. 6.

    D. E. Grenoble, J. L. Katz, K. L. Dunn, R. S. Gilmore andK. L. Murty,J. Biomed. Mater. Res. 6 (1972) 221.

    Google Scholar 

  7. 7.

    R. S. Gilmore, R. P. Pollack andJ. L. Katz,Arch. Oral Biol. 15 (1969) 787.

    Google Scholar 

  8. 8.

    F. Brudevold andR. Soremark, in “Structural and Chemical Organisation of Teeth”, Vol. 2, edited by A. G. W. Miles (Academic Press, New York and London, 1967) p. 247.

    Google Scholar 

  9. 9.

    G. Daculsi andB. Kerebel,J. Ultrastruct. Res. 65 (1978) 163.

    Google Scholar 

  10. 10.

    J-G. Helmcke, in “Structural and Chemical Organisation of Teeth”, Vol. 2, edited by A. G. Miles (Academic Press, New York and London, 1967) p. 135.

    Google Scholar 

  11. 11.

    P. G. Fox,J. Mater. Sci. 15 (1980) 3113.

    Google Scholar 

  12. 12.

    G. Gustafson andA-G. Gustafson, in ‘Structural and Chemical Organisation of Teeth”, Vol. 2, edited by A. G. W. Miles (Academic Press, New York and London, 1967) p. 75.

    Google Scholar 

  13. 13.

    S. P. Timoshenko andJ. N. Goodier, “Theory of Elasticity”, 3rd ed. (McGraw-Hill, New York, 1970) p. 409.

    Google Scholar 

  14. 14.

    D. J. Haines,J. Biomechanics 1 (1968) 117.

    Google Scholar 

  15. 15.

    J. L. Katz,ibid. 4 (1971) 455.

    Google Scholar 

  16. 16.

    F. C. Besic, C. R. Knowles, M. R. Weimann andO. Keller,J. Dent. Res. 48 (1969) 131.

    Google Scholar 

  17. 17.

    J. J. Zybert, W. A. Rachinger, P. P. Phakey andH. J. Orams,Composites 11 (1980) 175.

    Google Scholar 

  18. 18.

    S. K. Tan, quoted by R. F. S. Hearmon in “Landolt-Bornstein, New Series III/II” (Springer-Verlag, Berlin, 1979) p. 39.

    Google Scholar 

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Staines, M., Robinson, W.H. & Hood, J.A.A. Spherical indentation of tooth enamel. J Mater Sci 16, 2551–2556 (1981). https://doi.org/10.1007/BF01113595

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Keywords

  • Polymer
  • Viscoelastic Behaviour
  • Spherical Indentation
  • Enamel Surface
  • Tooth Enamel