Advertisement

A Study of the Potential to Detect Caries Lesions at the White-Spot Stage Using V(Z) Technique

  • E. Y. Bakulin
  • L. A. Denisova
  • R. Gr. Maev
Part of the Acoustical Imaging book series (ACIM, volume 29)

Abstract

Current wide-spread methods of non-destructive methods of caries diagnostics, such as X-ray techniques, do not provide the possibility to efficiently detect enamel caries lesions at the beginning (“white-spot”) stage, when the tooth tissue is only slightly altered and no loss of the tissue occurs. Therefore, it is of paramount importance to develop new, more sensitive methods of caries diagnostics. In this paper, certain aspects of the ultrasonic approach to the problem are discussed - in particular, detection of the enamel’s surface caries at the white-spot stage with a focused ultrasonic sensor positioned in front of the caries lesion (without cross-sectioning the tooth). Theoretical model using V(z) approach for layered media was applied to perform computer simulations resulting in V(z) curves for the different parameters of carious tissue and the degree of degradation. The curves were analyzed and it was shown that, comparing to a short-pulse/echo technique, V(z) approach provides much better distinction between sound and carious enamel and even makes possible to evaluate the degree of demineralization.

Key words

White-spot caries Ultrasound v(z) 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    A. Hall, J.M. Girkin: J. Dent. Res., 83 (2004), pp. 89–94CrossRefGoogle Scholar
  2. 2.
    G.K. Stookey, C. Gonzalez-Cabezas: J. Dent. Educ., 2001, 65(10), pp. 1001–1006Google Scholar
  3. 3.
    A.I. Darling: Br. Dent. J., 101 (1956), pp. 289–297Google Scholar
  4. 4.
    S.D. Peck, GAD Briggs: Adv. Dent. Res., 1 (1987), pp. 50–63Google Scholar
  5. 5.
    R.Gr. Maev, L.A. Denisova, E. Yu. Maeva, A.A. Denisov: Ultrasound Med. Biol., 2002, 28(1), pp. 131–136Google Scholar
  6. 6.
    S.R. Ghoraeb and T. Valle: Experimental evaluation of human teeth using noninvasive ultrasound: echodentograpgy. IEEE Trans. on UFFC, 2002; 49(10):1437–1443Google Scholar
  7. 7.
    R. Wichard, J. Schlegel, R. Haak, J.F. Roulet and R.M. Schmitt: Dental diagnosis by high frequency ultrasound. In: Torboli P and Masotti L, eds. Acoustical Imaging Vol. 22. New York: Plenum Press, 1996; 329–334Google Scholar
  8. 8.
    J.P. Zheng, E.Yu. Maeva, A.A. Denisov and R.G. Maev: Ultrasound imaging of human teeth using desktop scanning acoustic microscope. In: Hua Lee, ed. Acoustical Imaging Vol. 24. New York-London-Moscow: Kluwer Academic/Plenum Publishers, 2000; 165–171Google Scholar
  9. 9.
    A. Atalar: J. Appl. Phys., 49 (1978), pp. 5130–5139CrossRefADSGoogle Scholar
  10. 10.
    L.M. Brekhovskikh: Waves in layered media, 2nd edition. Acad. Press, N.-Y., 1980Google Scholar
  11. 11.
    G.A.D. Briggs, Acoustic microscopy, Oxford, Clarendon Press, 1992.Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • E. Y. Bakulin
    • 1
  • L. A. Denisova
    • 1
  • R. Gr. Maev
    • 1
  1. 1.Department of PhysicsUniversity of WindsorWindsorCanada

Personalised recommendations