Local mechanical and optical properties of normal and transparent root dentin

M. Balooch, S. G. Demos, J. H. Kinney, G. W. Marshall, G. Balooch, S. J. Marshall

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The mechanical and optical properties of healthy and transparent root dentin are compared using atomic force microscopy (AFM), micro-Raman and emission spectroscopies and fluorescence microscopy. The elastic modulus and hardness of intertubular and peritubular transparent and healthy dentin did not differ appreciably. The tubule filling material in the transparent zone, however, exhibited values between peritubular and intertubular dentin. Raman spectroscopy revealed a shift in the 1066 cm-1 band to 1072 cm-1 from normal to transparent intertubular dentin. The material filling the tubule lumen in transparent dentin showed an increase in frequency of the band near 1070 cm-1 as well. The emission spectral characteristics under 351 nm photoexcitation indicate differences between normal and transparent intertubular dentin. A transition region of about 300 μm between normal and transparent dentin was identified. In this region the intertubular emission properties were the same as for normal dentin, but tubules were filled. The filling material had emission characteristics closer to the normal intertubular than to transparent intertubular dentin.

Original languageEnglish (US)
Pages (from-to)507-514
Number of pages8
JournalJournal of Materials Science: Materials in Medicine
Volume12
Issue number6
DOIs
StatePublished - 2001
Externally publishedYes

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Dentin
Optical properties
Mechanical properties
Raman spectroscopy
Photoexcitation
Fluorescence microscopy
Emission spectroscopy
Atomic force microscopy
Raman Spectrum Analysis
Elastic moduli
Hardness
Atomic Force Microscopy
Elastic Modulus
Fluorescence Microscopy

ASJC Scopus subject areas

  • Biophysics
  • Bioengineering
  • Chemical Engineering(all)

Cite this

Balooch, M., Demos, S. G., Kinney, J. H., Marshall, G. W., Balooch, G., & Marshall, S. J. (2001). Local mechanical and optical properties of normal and transparent root dentin. Journal of Materials Science: Materials in Medicine, 12(6), 507-514. https://doi.org/10.1023/A:1011215628779

Local mechanical and optical properties of normal and transparent root dentin. / Balooch, M.; Demos, S. G.; Kinney, J. H.; Marshall, G. W.; Balooch, G.; Marshall, S. J.

In: Journal of Materials Science: Materials in Medicine, Vol. 12, No. 6, 2001, p. 507-514.

Research output: Contribution to journalArticle

Balooch, M, Demos, SG, Kinney, JH, Marshall, GW, Balooch, G & Marshall, SJ 2001, 'Local mechanical and optical properties of normal and transparent root dentin', Journal of Materials Science: Materials in Medicine, vol. 12, no. 6, pp. 507-514. https://doi.org/10.1023/A:1011215628779
Balooch, M. ; Demos, S. G. ; Kinney, J. H. ; Marshall, G. W. ; Balooch, G. ; Marshall, S. J. / Local mechanical and optical properties of normal and transparent root dentin. In: Journal of Materials Science: Materials in Medicine. 2001 ; Vol. 12, No. 6. pp. 507-514.
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