title: Early diagnosis of teeth erosion using polarized laser speckle imaging.
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.
authors.affiliation: Saint Joseph University, Physics Department, Faculty of Science, UR TVA, B.P. 11-514-Riad El Solh, Beirut 1107 2050, LebanonbUniversité de Bretagne Occidentale, UEB, EA 938 Laboratoire de Spectrométrie et Optique Laser, IBSAM, 6 avenue le Gorgeu, C.S. 938.
authors.forename: Christelle
authors.initials: C
authors.lastname: Abou Nader
authors.affiliation: 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.
authors.forename: Fabrice
authors.initials: F
authors.lastname: Pellen
authors.affiliation: Saint Joseph University, Physics Department, Faculty of Science, UR TVA, B.P. 11-514-Riad El Solh, Beirut 1107 2050, Lebanon.
authors.forename: Hadi
authors.initials: H
authors.lastname: Loutfi
authors.affiliation: Saint Joseph University, Physics Department, Faculty of Science, UR TVA, B.P. 11-514-Riad El Solh, Beirut 1107 2050, Lebanon.
authors.forename: Rassoul
authors.initials: R
authors.lastname: Mansour
authors.affiliation: 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.
authors.forename: Bernard
authors.initials: B
authors.lastname: Le Jeune
authors.affiliation: 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.
authors.forename: Guy
authors.initials: G
authors.lastname: Le Brun
authors.affiliation: Saint Joseph University, Physics Department, Faculty of Science, UR TVA, B.P. 11-514-Riad El Solh, Beirut 1107 2050, Lebanon.
authors.forename: Marie
authors.initials: M
authors.lastname: Abboud
mesh_terms: D003952:Diagnostic Imaging / Q000379:methods*; D042241:Early Diagnosis; D006801:Humans; D008963:Molar / Q000473:pathology; D012542:Scattering, Radiation; D014077:Tooth Erosion / Q000175:diagnosis*