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Proceedings Paper

3D imaging of dental hard tissues with Fourier domain optical coherence tomography
Author(s): Yueli L. Chen; Yi Yang; Jing Ma; Jun Yan; Yuanxin Shou; Tianheng Wang; Aruna Ramesh; Jing Zhao; Quing Zhu
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Paper Abstract

A fiber optical coherence tomography (OCT) probe is used for three dimensional dental imaging. The probe has a lightweight miniaturized design with a size of a pen to facilitate clinic in vivo diagnostics. The probe is interfaced with a swept-source / Fourier domain optical coherence tomography at 20K axial scanning rate. The tooth samples were scanned from occlusal, buccal, lingual, mesial, and distal orientations. Three dimensional imaging covers tooth surface area up to 10 mm x 10 mm with a depth about 5 mm, where a majority of caries affection occurs. OCT image provides better resolution and contrast compared to gold standard dental radiography (X-ray). In particular, the technology is well suited for occlusal caries detection. This is complementary to X-ray as occlusal caries affection is difficult to be detected due to the X-ray projectile scan geometry. The 3D topology of occlusal surface as well as the dentin-enamel junction (DEJ) surface inside the tooth can be visualized. The lesion area appears with much stronger back scattering signal intensity.

Paper Details

Date Published: 18 February 2011
PDF: 6 pages
Proc. SPIE 7883, Photonic Therapeutics and Diagnostics VII, 78834O (18 February 2011); doi: 10.1117/12.876798
Show Author Affiliations
Yueli L. Chen, Agiltron, Inc. (United States)
Yi Yang, Univ. of Connecticut (United States)
Jing Ma, Agiltron, Inc. (United States)
Jun Yan, Agiltron, Inc. (United States)
Yuanxin Shou, Agiltron, Inc. (United States)
Tianheng Wang, Univ. of Connecticut (United States)
Aruna Ramesh, Tufts Univ. School of Dental Medicine (United States)
Jing Zhao, Agiltron, Inc. (United States)
Quing Zhu, Univ. of Connecticut (United States)

Published in SPIE Proceedings Vol. 7883:
Photonic Therapeutics and Diagnostics VII
Kenton W. Gregory M.D.; Nikiforos Kollias; Andreas Mandelis; Henry Hirschberg M.D.; Hyun Wook Kang; Anita Mahadevan-Jansen; Brian Jet-Fei Wong M.D.; Justus F. R. Ilgner M.D.; Bodo E. Knudsen M.D.; E. Duco Jansen; Steen J. Madsen; Guillermo J. Tearney; Bernard Choi; Haishan Zeng; Laura Marcu, Editor(s)

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