1. A pilot study to assess the morphology and progression of non-carious cervical lesions

      A pilot study to assess the morphology and progression of non-carious cervical lesions
      Objective This longitudinal pilot study aimed to morphologically and quantitatively investigate the progress of non-carious cervical lesions (NCCLs) by using swept-source optical coherence tomography (SS-OCT). Methods The samples examined comprised sets of NCCL epoxy resin replicas obtained from 10 lesions in 6 patients who attended annual dental visits over 4 or 5 years. SS-OCT images of the replicas were analyzed in terms of the maximum depth (D max ) and corresponding ...
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    2. Clinical assessment of non carious cervical lesion using swept-source optical coherence tomography

      Clinical assessment of non carious cervical lesion using swept-source optical coherence tomography
      ...vision of Oral and Dental Surgery, Department of Advanced Medicine, National Hospital for Geriatric Medicine, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan Email: Shimada Yasushi (shimada.ope@tmd.ac.j...
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    3. Monitoring remineralization of enamel subsurface lesions by optical coherence tomography

      Monitoring remineralization of enamel subsurface lesions by optical coherence tomography
      Optical coherence tomography (OCT) is a potential clinical tool for enamel lesion monitoring. Swept-source OCT findings were compared with cross-sectional nanohardness findings of enamel. Subsurface bovine enamel lesions in three groups were subjected to (1) deionized water (control), (2) phosphoryl oligosaccharide of calcium (POs-Ca) or (3) POs-Ca with 1 ppm fluoride for 14 days. B-scans images were obtained at 1310-nm center wavelength on sound, demineralized and remineralized areas after 4 ...
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    4. Estimation of the Enamel and Dentin Mineral Content from the Refractive Index

      Estimation of the Enamel and Dentin Mineral Content from the Refractive Index
      Recent advances in the field of optics have enabled accurate and localized measurement of optical properties of biological substrates. This work aimed to elucidate the relationship between the local refractive index ( n ) and mineral content (MC) of enamel and dentin. De- and remineralized lesions in bovine enamel and dentin blocks were sectioned into 300- to 400-m-thick slices, and placed on a metal plate to capture images of sound, de- and ...
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    5. Longitudinal assessment of subsurface artificial root caries lesions by optical coherence tomography in comparison with transverse microradiography

      Longitudinal assessment of subsurface artificial root caries lesions by optical coherence tomography in comparison with transverse microradiography
      We previously demonstrated that a swept-source optical coherence tomography system (SS-OCT) without polarization-sensing could quantitatively estimate the progress of cavitated dentin lesions in vitro. The purpose of the current study was to investigate the ability to estimate the lesion development in non-cavitated dentin lesions with a surface layer. Bovine root dentin specimens were subjected to different periods of demineralization (1 to 14 days). Cross-sectional images of the specimens before and ...
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    6. Relationship between refractive index and mineral content of enamel and dentin using SS-OCT and TMR

      Relationship between refractive index and mineral content of enamel and dentin using SS-OCT and TMR
      The aim of this work was to investigate relationship between refractive index (n) and mineral content (MC) (vol %) of enamel and dentin using swept-source optical coherence tomography (SS-OCT) and transverse microradiography (TMR). Enamel and dentin blocks were partitioned into three regions. The middle partition of each sample was covered with a nail polish to protect the sound area during exposure to the treatment solutions. Samples were demineralized in a demineralizing ...
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    7. Estimation of lesion progress in artificial root caries by swept source optical coherence tomography in comparison to transverse microradiography

      Estimation of lesion progress in artificial root caries by swept source optical coherence tomography in comparison to transverse microradiography
      ...uantitative estimation of lesion depth and mineral loss with cavitated dentin lesions in vitro. Yuko Natsume, Syozi Nakashima, Alireza Sadr, Yasushi Shimada, Junji Tagami and Yasunori Sumi, "Estimation of lesion progress...
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  2. Organizations in the News

    1. (9 articles) Tokyo Medical & Dental University
    2. (1 articles) National Institutes of Health
    3. (1 articles) Tokyo Medical University
    4. (1 articles) State University of New York at Buffalo
  3. People in the News

    1. (11 articles) Yasunori Sumi
    2. (11 articles) Junji Tagami
    3. (10 articles) Yasushi Shimada
    4. (10 articles) Alireza Sadr
    5. (2 articles) Turki Bakhsh
    6. (1 articles) Daniel S. Fried
    7. (1 articles) Peter Rechmann
    8. (1 articles) Ilnaz Hariri
  4. OCT Companies in the News

    1. (3 articles) Santec
    2. (1 articles) Panasonic