Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Light propagation through teeth containing simulated caries lesions

J Vaarkamp1, J J ten Bosch, E H Verdonschot

  • 1TRIKON, Department of Cariology and Endodontology, Faculty of Medical Sciences, University of Nijmegen, The Netherlands.

Physics in Medicine and Biology
|August 1, 1995
PubMed
Summary

Tooth transillumination shows promise for detecting dental caries. This study found that light absorption and scattering changes in simulated caries lesions correlate with lesion severity, primarily driven by enamel changes.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Method for measuring position-dependent volume reflection.

Applied optics·2010
Same author

Fiber-optic scattering monitor for use with bulk opaque material.

Applied optics·2010
Same author

A comparison of conformal and intensity modulated treatment planning techniques for early prostate cancer.

Journal of medical imaging and radiation oncology·2009
Same author

Thorax set-up verification with multiple oblique treatment portal images.

The British journal of radiology·2009
Same author

Determination of Kubelka-Munk scattering and absorption coefficients by diffuse illumination.

Applied optics·2008
Same author

Diffusion coefficient in photon diffusion theory.

Optics letters·2007

Area of Science:

  • Biophotonics
  • Dental Diagnostics
  • Optical Imaging

Background:

  • Current dental caries detection methods have limitations.
  • Tooth transillumination is an emerging alternative technique.
  • This method relies on altered light scattering and absorption in carious tissue.

Purpose of the Study:

  • To investigate the efficacy of transillumination for detecting approximal caries lesions.
  • To model caries progression using simulated lesions in premolar teeth.
  • To quantify light absorption and scattering changes associated with lesion development.

Main Methods:

  • Simulated approximal caries lesions were created in premolar teeth.
  • Cavities were filled with fluids of varying dye (light absorbing) and particle (light scattering) concentrations.

Related Experiment Videos

  • Light extinction was measured at the occlusal surface and analyzed using optical models.

    • Main Results:

    • For light-absorbing lesions, extinction correlated with absorption coefficient (r=0.98) following the Lambert-Beer law.
    • For light-scattering lesions, extinction correlated with reduced scatter coefficient (r=0.98) below 1.25 mm⁻¹.
    • The enamel lesion significantly contributed more to radiance change than the dentinal part, especially under red light illumination.

    Conclusions:

    • Transillumination effectively quantifies optical properties of simulated caries lesions.
    • The Lambert-Beer law and scattering models accurately describe lesion optical behavior within certain limits.
    • Enamel changes are the primary optical indicators of caries detected by transillumination.