1. Nobuyoshi Ozawa

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    1. Mentioned In 9 Articles

    2. Method and apparatus for measuring and displaying dental plaque

      Method and apparatus for measuring and displaying dental plaque
      A method and an apparatus for measuring and displaying dental plaque are provided, and the method includes the steps of dividing near infrared light output from a light source into measurement light and reference light, applying the measurement light toward a tooth in an oral cavity and scanning the tooth with the measurement light, producing interference light from reflected light and back-scattered light from the tooth and the reference light ...
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    3. Application of optical coherence tomography (OCT) to nondestructive inspection of dentures

      Application of optical coherence tomography (OCT) to nondestructive inspection of dentures
      The porosity of denture base resins continues to be one of the undesirable characteristics of acrylic resins. It is commonly accepted that porosity of the denture not only often leads to denture fractures, but also may function as a reservoir of potential pathogens. The purpose of this study was to present the first OCT images of finished dentures using a new advanced-type OCT scanner we have developed, and to discuss ...
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    4. Diagnosis of Occlusal Caries using Swept-source Optical Coherence Tomography

      Diagnosis of Occlusal Caries using Swept-source Optical Coherence Tomography
      Objectives: Detection of pit and fissure caries by current methods is not highly sensitive. Optical coherence tomography (OCT) is a promising diagnostic method for creating cross-sectional imaging of internal biological structures by measuring echoes of backscattered light. In this ex vivo study, we examined a swept-source OCT (SS-OCT) as a diagnostic tool for occlusal caries. Methods: 117 investigation sites of occlusal fissures were selected from 62 extracted teeth and inspected ...
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    5. Validation of swept-source optical coherence tomography (SS-OCT) for the diagnosis of occlusal caries

      Validation of swept-source optical coherence tomography (SS-OCT) for the diagnosis of occlusal caries
      Objectives Detection of pit and fissure caries by current methods is not highly sensitive. In this laboratory study, we examined the use of a swept-source optical coherence tomography (SS-OCT) as a diagnostic tool for occlusal caries. Methods One-hundred and eleven investigation sites of occlusal fissures were selected from 62 extracted teeth and examined visually using conventional dental equipment without any magnification. SS-OCT observations were carried out on the same locations ...
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    6. In vivo imaging of human labial glands using advanced optical coherence tomography

      Objective Optical coherence tomography (OCT) has emerged as a high-resolution noninvasive clinical imaging application. The purpose of this study was to show OCT images of human labial glands obtained using a swept-source (SS) OCT system. Study design Labial gland OCT imaging was carried out using our new SS-OCT system for 5 healthy volunteers using a hand-held in vivo OCT scanning probe. The labial tissue was scanned in a superior to ...
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    7. Evaluation of oral vascular anomalies using optical coherence tomography

      Optical coherence tomography (OCT) is a new method of biomedical imaging that can generate high-resolution, cross-sectional images of microstructures. The purpose of this study was to present the first OCT images of oral vascular anomalies using a new advanced OCT scanner that we have developed, and to discuss the application of our system for oral soft tissues. Knowledge of the size and area of the vascular structures can be useful ...
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  2. About Nobuyoshi Ozawa

    Nobuyoshi Ozawa, DDS, is a Resident at the Division of Oral and Dental Surgery, Department of Advanced Medicine, National Hospital for Geriatric Medicine, National Center for Geriatrics and Gerontology, Japan.