title: Diagnosis of occlusal caries lesions in deciduous molars by coherent light scattering pattern speckle.
abstract: BACKGROUND
  This study presents the correlation between laser speckle images and detection of incipient caries lesions from changs in the microstructure of the surface of tooth enamel.
  
  
  METHODS
  We used 30 healthy deciduous molar teeth collected from the Biobank Human Teeth, Faculty of Dentistry, University of São Paulo who had carious lesions induced by the pH cycling method. The samples were evaluated for the diagnosis of caries by two methods ICDAS and speckle pattern of coherent light scattering after 5, 10 and 15days and the results were statistically analyzed using α=0.05 significance level.
  
  
  RESULTS
  A significant difference was observed between the image of the speckle scattering of healthy and injured areas within the 3 study groups, but not when comparing the three groups, showing us that it is an innovative technique that needs further study, but can be used as a diagnostic method for the detection of early caries lesions.
  
  
  CONCLUSIONS
  It can be concluded that the analysis of scattering speckle pattern is a diagnostic technique that provides information on the microstructure of the surface of tooth enamel which has sensitivity for detection of incipient caries lesions.
authors.affiliation: Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil; School of Dentistry, University Nove de Julho, UNINOVE, São Paulo, Brazil.
authors.forename: Silvia Regina Garcia
authors.initials: SRG
authors.lastname: Olivan
authors.affiliation: Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil.
authors.forename: Alessandro Melo
authors.initials: AM
authors.lastname: Deana
authors.affiliation: School of Dentistry, University Nove de Julho, UNINOVE, São Paulo, Brazil.
authors.forename: Marcelo Mendes
authors.initials: MM
authors.lastname: Pinto
authors.affiliation: Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil; School of Dentistry, University Nove de Julho, UNINOVE, São Paulo, Brazil.
authors.forename: Ravana Angelini
authors.initials: RA
authors.lastname: Sfalcin
authors.affiliation: Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil; School of Dentistry, University Nove de Julho, UNINOVE, São Paulo, Brazil.
authors.forename: Kristianne Porta Santos
authors.initials: KPS
authors.lastname: Fernandes
authors.affiliation: Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil.
authors.forename: Raquel Agnelli
authors.initials: RA
authors.lastname: Mesquita-Ferrari
authors.affiliation: Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil; School of Dentistry, University Nove de Julho, UNINOVE, São Paulo, Brazil.
authors.forename: Renato Araujo
authors.initials: RA
authors.lastname: Prates
authors.affiliation: Department of Biophotonics Applied to Health Sciences, University Nove de Julho, UNINOVE, São Paulo, Brazil; School of Dentistry, University Nove de Julho, UNINOVE, São Paulo, Brazil. Electronic address: sandra.skb@gmail.com.
authors.forename: Sandra Kalil
authors.initials: SK
authors.lastname: Bussadori
mesh_terms: D003731:Dental Caries / Q000000981:diagnostic imaging* / Q000473:pathology*; D003732:Dental Caries Activity Tests; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D066298:In Vitro Techniques; D008297:Male; D008963:Molar / Q000000981:diagnostic imaging* / Q000473:pathology*; D023861:Photography, Dental / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014094:Tooth, Deciduous / Q000000981:diagnostic imaging* / Q000473:pathology
keywords: Caries lesion; Diagnosis; ICDAS; Laser speckled imaging