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Real-time visualization of hidden occlusal and approximal lesions with an OCT dental handpiece (Conference Presentation)
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Paper Abstract

Near infrared imaging methods, including optical coherence tomography (OCT), have shown promise in assessing activity of enamel caries lesions. We present initial results in ex-vivo dental samples with a polarization diversity-detection OCT system complete with an integrated dental handpiece. Built around an Axsun Technologies swept source engine, images B-scans 12(x) by 7(z) mm at over 100 fps with 66um transverse and 7um depth resolution. Internal normal dental structure and lesions were imaged and compared with micro-CT. We demonstrate that the Axsun OCT prototype can detect the penetration of occlusal lesions to dentin and measure the penetration of approximal lesions when imaging from the occlusal surface.

Paper Details

Date Published: 7 March 2019
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Proc. SPIE 10857, Lasers in Dentistry XXV, 108570E (7 March 2019); doi: 10.1117/12.2513442
Show Author Affiliations
Andrés F. Zuluaga, AXSUN Technologies Inc. (United States)
Vincent Yang, Univ. of California, San Francisco (United States)
Joey Jabbour, AXSUN Technologies Inc. (United States)
Timothy Ford, AXSUN Technologies Inc. (United States)
Nate Kemp, AXSUN Technologies Inc. (United States)
Daniel Fried, Univ. of California, San Francisco (United States)


Published in SPIE Proceedings Vol. 10857:
Lasers in Dentistry XXV
Peter Rechmann; Daniel Fried, Editor(s)

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