Tomographic imaging of incipient dental-caries using optical coherence tomography and comparison with various modalities |
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Authors: | Jihoon Na Jae Ho Baek Seon Young Ryu Changsu Lee Byeong Ha Lee |
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Institution: | (1) Department of Information and Communications, Gwangju Institute of Science and Technology (GIST), 261 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, Korea;(2) Department of Orthodontics, Division of Dentistry, Ulsan University Hospital, 290-3 Jeonha-dong, Dong-gu, Ulsan, 682-714, Korea;(3) Department of Electronic Engineering, The University of Suwon, Bongdam, Hwaseong, Gyeonggi, 445-743, Korea |
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Abstract: | We present the optical coherence tomography (OCT) made to investigate the early dental caries in human teeth and compare its
results with those taken by conventional imaging modalities including light illuminating examination (LIE), digital intra-oral
radiography (DIOR), and electron probe micro analyzer (EPMA). Morphological features and caries-involved areas of the dental
structure were mainly investigated by LIE, DIOR, and OCT to study the infection of the caries lesion in pits and fissures.
The biochemical information acquired with EPMA and the morphological features taken with OCT in the early stage of caries
were compared and analyzed to present an objective and practical index for the degree of caries. The experimental results
allow us to conclude that OCT could be used to provide quantitative analysis of caries based on the reflectivity difference
in the specimen. |
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Keywords: | optical coherence tomography biomedical imaging medical optics instrumentation dental decay early caries |
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