Development of dental endoscope for root-canal observation

M. Fujimoto, S. Yoshii, C. Kitamura, S. Ikezawa, T. Ueda

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    With the development of dental instruments such as dental microscopes and techniques like cone-beam computed tomography (CBCT), the precision of dental treatment has greatly improved. However, the observation of fractures near the apex collateral of root canals using these instruments remains difficult. In this study, we developed two types of probes that employ external and internal irradiation, respectively. The external-irradiation probe comprises an image fiber and a gradient-index (GRIN) lens, each with a diameter of 500 μm. The internal-irradiation probe comprises an image fiber 300 μm in diameter; a GRIN lens 250 μm in diameter; and five optical fibers for illumination, each 65 μm in diameter. Both probes observed lines and spaces 10 to 100 μm in width on a sample when using a light source from the outside. The visibility of the obtained images increased with the width of the lines and spaces. The illumination of the observation area with the optical fibers inside of the probe was difficult because of a lack of light. In this study, we obtained high-resolution pictures of a root canal. In the future, we will re-design the lens to determine a suitable offset for the optical fiber.

    Original languageEnglish
    Title of host publicationProceedings of the International Conference on Sensing Technology, ICST
    PublisherIEEE Computer Society
    Pages508-513
    Number of pages6
    Volume2016-March
    ISBN (Print)9781479963140
    DOIs
    Publication statusPublished - 2016 Mar 21
    Event9th International Conference on Sensing Technology, ICST 2015 - Auckland, New Zealand
    Duration: 2015 Dec 82015 Dec 11

    Other

    Other9th International Conference on Sensing Technology, ICST 2015
    CountryNew Zealand
    CityAuckland
    Period15/12/815/12/11

    Keywords

    • endoscope
    • GRIN lens
    • image fiber
    • root canal

    ASJC Scopus subject areas

    • Artificial Intelligence
    • Computer Science Applications
    • Signal Processing
    • Electrical and Electronic Engineering

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  • Cite this

    Fujimoto, M., Yoshii, S., Kitamura, C., Ikezawa, S., & Ueda, T. (2016). Development of dental endoscope for root-canal observation. In Proceedings of the International Conference on Sensing Technology, ICST (Vol. 2016-March, pp. 508-513). [7438451] IEEE Computer Society. https://doi.org/10.1109/ICSensT.2015.7438451