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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 19 — Sep. 18, 2006
  • pp: 8584–8597

Fresnel-propagated imaging for the study of human tooth dentin by partially coherent x-ray tomography

S. Zabler, H. Riesemeier, P. Fratzl, and P. Zaslansky  »View Author Affiliations

Optics Express, Vol. 14, Issue 19, pp. 8584-8597 (2006)

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Recent methods of phase imaging in x-ray tomography allow the visualization of features that are not resolved in conventional absorption microtomography. Of these, the relatively simple setup needed to produce Fresnel-propagated tomograms appears to be well suited to probe tooth-dentin where composition as well as microstructure vary in a graded manner. By adapting analytical propagation approximations we provide predictions of the form of the interference patterns in the 3D images, which we compare to numerical simulations as well as data obtained from measurements of water immersed samples. Our observations reveal details of the tubular structure of dentin, and may be evaluated similarly to conventional absorption tomograms. We believe this exemplifies the power of Fresnel-propagated imaging as a form of 3D microscopy, well suited to quantify gradual microstructural-variations in teeth and similar tissues.

© 2006 Optical Society of America

OCIS Codes
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(110.4980) Imaging systems : Partial coherence in imaging
(110.6960) Imaging systems : Tomography
(110.7440) Imaging systems : X-ray imaging
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(170.1850) Medical optics and biotechnology : Dentistry

ToC Category:
Imaging Systems

Original Manuscript: May 31, 2006
Revised Manuscript: August 8, 2006
Manuscript Accepted: August 8, 2006
Published: September 18, 2006

Virtual Issues
Vol. 1, Iss. 10 Virtual Journal for Biomedical Optics

S. Zabler, H. Riesemeier, P. Fratzl, and P. Zaslansky, "Fresnel-propagated imaging for the study of human tooth dentin by partially coherent x-ray tomography," Opt. Express 14, 8584-8597 (2006)

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