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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 11 — May. 28, 2007
  • pp: 6823–6830

Real-time measurement of internal stress of dental tissue using holography

Dejan Pantelić, Larisa Blažić, Svetlana Savić-Šević, Branka Murić, Darko Vasiljević, Bratimir Panić, and Ilija Belić  »View Author Affiliations

Optics Express, Vol. 15, Issue 11, pp. 6823-6830 (2007)

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We describe a real-time holographic technique used to observe dental contraction due to photo-polymerization of dental filling during LED lamp illumination. An off-axis setup was used, with wet in-situ processing of the holographic plate, and consequent recording of interference fringes using CCD camera. Finite elements method was used to calculate internal stress of dental tissue, corresponding to experimentally measured deformation. A technique enables selection of preferred illumination method with reduced polymerization contraction. As a consequence, durability of dental filling might be significantly improved.

© 2007 Optical Society of America

OCIS Codes
(090.2880) Holography : Holographic interferometry
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(160.5470) Materials : Polymers
(170.1850) Medical optics and biotechnology : Dentistry

ToC Category:

Original Manuscript: February 22, 2007
Revised Manuscript: April 24, 2007
Manuscript Accepted: April 25, 2007
Published: May 18, 2007

Virtual Issues
Vol. 2, Iss. 6 Virtual Journal for Biomedical Optics

Dejan Pantelic, Larisa Blazic, Svetlana Savic-Sevic, Branka Muric, Darko Vasiljevic, Bratimir Panic, and Ilija Belic, "Real-time measurement of internal stress of dental tissue using holography," Opt. Express 15, 6823-6830 (2007)

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