Diagnosis of occlusal caries lesions in deciduous molars by coherent light scattering pattern speckle

Publication date: Available online 12 March 2017
Source:Photodiagnosis and Photodynamic Therapy
Author(s): Silvia Regina Garcia Olivan, Alessandro Melo Deana, Marcelo Mendes Pinto, Ravana Angelini Sfalcin, Kristianne Porta Santos Fernandes, Raquel Agnelli Mesquita-Ferrari, Renato Araujo Prates, Sandra Kalil Bussadori
BackgroundIn this study is presented the correlation between laser speckle images and detection of incipient caries lesions by changing the microstructure of the surface of tooth enamel.MethodsWe 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 twomethodsICDAS and speckle pattern of coherent light scattering after 5, 10 and 15days and the results were statistically analyzed using α=0.05 significance level.ResultsA 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.ConclusionIt 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.



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