Photoacoustic imaging of hidden dental caries by using a fiber-based probing system

Takuya Koyama, Satoko Kakino, Yuji Matsuura

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)


Photoacoustic method to detect hidden dental caries is proposed. It was found that high frequency ultrasonic waves are generated from hidden carious part when radiating laser light to occlusal surface of model tooth. By making a map of intensity of these high frequency components, photoacoustic images of hidden caries were successfully obtained. A photoacoustic imaging system using a bundle of hollow optical fiber was fabricated for using clinical application, and clear photoacoustic image of hidden caries was also obtained by this system.

Original languageEnglish
Title of host publicationBiomedical Imaging and Sensing Conference
EditorsYasuhiro Awatsuji, Osamu Matoba, Yoshihisa Aizu, Toyohiko Yatagai
ISBN (Electronic)9781510610033
Publication statusPublished - 2017
Event3rd Biomedical Imaging and Sensing Conference - Yokohama, Japan
Duration: 2017 Apr 192017 Apr 21

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


Conference3rd Biomedical Imaging and Sensing Conference


  • Dental diagnosis
  • Hidden caries
  • Hollow optical fiber
  • Photoacoustic imaging
  • Visible laser


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