Early diagnosis of teeth erosion using polarized laser speckle imaging

Christelle Abou Nader; Fabrice Pellen; Hadi Loutfi; Rassoul Mansour; Bernard Le Jeune; Guy Le Brun; Marie Abboud

doi:10.1117/1.JBO.21.7.071103

22 December 2015 Early diagnosis of teeth erosion using polarized laser speckle imaging

Christelle Abou Nader, Fabrice Pellen, Hadi Loutfi, Rassoul Mansour, Bernard Le Jeune, Guy Le Brun, Marie Abboud

Author Affiliations +

Journal of Biomedical Optics, Vol. 21, Issue 7, 071103 (December 2015). https://doi.org/10.1117/1.JBO.21.7.071103

Abstract

Dental erosion starts with a chemical attack on dental tissue causing tooth demineralization, altering the tooth structure and making it more sensitive to mechanical erosion. Medical diagnosis of dental erosion is commonly achieved through a visual inspection by the dentist during dental checkups and is therefore highly dependent on the operator’s experience. The detection of this disease at preliminary stages is important since, once the damage is done, cares become more complicated. We investigate the difference in light-scattering properties between healthy and eroded teeth. A change in light-scattering properties is observed and a transition from volume to surface backscattering is detected by means of polarized laser speckle imaging as teeth undergo acid etching, suggesting an increase in enamel surface roughness.

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Christelle Abou Nader, Fabrice Pellen, Hadi Loutfi, Rassoul Mansour, Bernard Le Jeune, Guy Le Brun, and Marie Abboud "Early diagnosis of teeth erosion using polarized laser speckle imaging," Journal of Biomedical Optics 21(7), 071103 (22 December 2015). https://doi.org/10.1117/1.JBO.21.7.071103

Published: 22 December 2015

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KEYWORDS

Teeth

Speckle

Polarization

Laser speckle imaging

Chromium

Calcium

Scattering

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