Special Section on Polarized Light for Biomedical Applications

Early diagnosis of teeth erosion using polarized laser speckle imaging

[+] Author Affiliations
Christelle Abou Nader

Saint Joseph University, Physics Department, Faculty of Science, UR TVA, B.P. 11-514-Riad El Solh, Beirut 1107 2050, Lebanon

Université de Bretagne Occidentale, UEB, EA 938 Laboratoire de Spectrométrie et Optique Laser, IBSAM, 6 avenue le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France

Fabrice Pellen, Bernard Le Jeune, Guy Le Brun

Université de Bretagne Occidentale, UEB, EA 938 Laboratoire de Spectrométrie et Optique Laser, IBSAM, 6 avenue le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France

Hadi Loutfi, Rassoul Mansour, Marie Abboud

Saint Joseph University, Physics Department, Faculty of Science, UR TVA, B.P. 11-514-Riad El Solh, Beirut 1107 2050, Lebanon

J. Biomed. Opt. 21(7), 071103 (Dec 22, 2015). doi:10.1117/1.JBO.21.7.071103
History: Received October 1, 2015; Accepted November 10, 2015
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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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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Christelle Abou Nader ; Fabrice Pellen ; Hadi Loutfi ; Rassoul Mansour ; Bernard Le Jeune, et al.
"Early diagnosis of teeth erosion using polarized laser speckle imaging", J. Biomed. Opt. 21(7), 071103 (Dec 22, 2015). ; http://dx.doi.org/10.1117/1.JBO.21.7.071103


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