1. Articles from Yuan Zhou

    1-4 of 4
    1. Assessment of root caries under wet and dry conditions using swept-source optical coherence tomography (SS-OCT)

      Assessment of root caries under wet and dry conditions using swept-source optical coherence tomography (SS-OCT)

      The purpose of this study was to compare optical properties of root caries under two observing conditions using swept-source optical coherence tomography (SS-OCT). In vitro and natural root caries were observed by SS-OCT under wet and dry conditions, followed by confocal laser scanning microscope (CLSM) and transverse microradiography (TMR). Signal intensity (SI), distance between SI peaks (SI-distance) and optical lesion depth were obtained from OCT. Lesion depth was measured from CLSM; lesion depth (LD TMR ) and mineral loss (ML) were obtained from TMR. In vitro root caries under wet and dry conditions showed different OCT images and SI patterns. Lesion ...

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    2. Optical analysis of enamel and dentin caries in relation to mineral density using swept-source optical coherence tomography

      Optical analysis of enamel and dentin caries in relation to mineral density using swept-source optical coherence tomography

      The aim of this study was to evaluate the signal intensity and signal attenuation of swept source optical coherence tomography (SS-OCT) for dental caries in relation to the variation of mineral density. SS-OCT observation was performed on the enamel and dentin artificial demineralization and on natural caries. The artificial caries model on enamel and dentin surfaces was created using Streptococcus mutans biofilms incubated in an oral biofilm reactor. The lesions were centrally cross sectioned and SS-OCT scans were obtained in two directions to construct a three-dimensional data set, from the lesion surface (sagittal scan) and parallel to the lesion surface ...

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    3. Assessment of bacterial demineralization around composite restorations using swept-source optical coherence tomography (SS-OCT)

      Assessment of bacterial demineralization around composite restorations using swept-source optical coherence tomography (SS-OCT)

      Objective To observe the bacterial demineralization of the enamel and dentin around composite restorations bonded with one-step and two-step self-etch adhesive systems using swept-source optical coherence tomography (SS-OCT). Methods Forty class V cavities (2.5-mm surface diameter, 2.0-mm maximum depth) were prepared on cervical areas of 20 human molars. The specimens were either treated with one-step adhesive (Clearfil Tri-S Bond ND Quick; TS) or two-step adhesive (Clearfil SE Bond; SE), restored with a flowable resin composite (Estelite Flow Quick). Specimens in the demineralized group were incubated for 2 weeks after Streptococcus mutans biofilm formation, while specimens in the control ...

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    4. Rapid and high-resolution imaging of human liver specimens by full-field optical coherence tomography

      Rapid and high-resolution imaging of human liver specimens by full-field optical coherence tomography

      We report rapid and high-resolution tomographic en face imaging of human liver specimens by full-field optical coherence tomography (FF-OCT). First, the arrangement of the FF-OCT system was described and the performance of the system was measured. The measured axial and lateral resolutions of the system are 0.8 and 0.9     μ m , respectively. The system has a sensitivity of ∼ 60     dB and can achieve an imaging rate of 7 fps and a penetration depth of ∼ 80     μ m . The histological structures of normal liver can be seen clearly in the en face tomographic images, including central veins, cords of hepatocytes separated ...

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    1-4 of 4
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  2. Topics in the News

    1. (3 articles) Tokyo Medical & Dental University
    2. (3 articles) National Center for Geriatrics and Gerontology in Japan
    3. (3 articles) Junji Tagami
    4. (3 articles) Yasushi Shimada
    5. (3 articles) Alireza Sadr
    6. (3 articles) Yasunori Sumi
    7. (1 articles) University of Washington
    8. (1 articles) Nanjing University of Science and Technology
    9. (1 articles) Wanrong Gao
    10. (1 articles) South China Normal University
    11. (1 articles) Indiana University
    12. (1 articles) Donald T. Miller
    13. (1 articles) Boston Scientific
    14. (1 articles) Abbot
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    Rapid and high-resolution imaging of human liver specimens by full-field optical coherence tomography Assessment of bacterial demineralization around composite restorations using swept-source optical coherence tomography (SS-OCT) Optical analysis of enamel and dentin caries in relation to mineral density using swept-source optical coherence tomography Assessment of root caries under wet and dry conditions using swept-source optical coherence tomography (SS-OCT) Optical coherence tomography angiography (OCTA) findings in Serpiginous Choroiditis Changes in retinal layer thickness with maturation in the dog: an in vivo spectral domain - optical coherence tomography imaging study Optical coherence tomography angiography analysis of fabry disease An unsupervised hierarchical approach for automatic intra‐retinal cyst segmentation in spectral‐domain optical coherence tomography images Towards quantitative assessment of burn based on photoacoustic and optical coherence tomography Cellular Scale Imaging of Transparent Retinal Structures and Processes Using Adaptive Optics Optical Coherence Tomography Optical Coherence Tomography Imaging in Acute Myocardial Infarction: Calcified Nodule as a Culprit Lesion Study of low-peak-power highly coherent broadband supercontinuum generation through a dispersion-engineered Si-rich silicon nitride waveguide