In-vivo gingival sulcus imaging using full-range, complex-conjugate-free, endoscopic spectral domain optical coherence tomography

Yong Huang; Kang Zhang; WonJin Yi; Jin U. Kang

doi:10.1117/12.908965

30 January 2012 In-vivo gingival sulcus imaging using full-range, complex-conjugate-free, endoscopic spectral domain optical coherence tomography

Yong Huang, Kang Zhang, WonJin Yi, Jin U. Kang

Author Affiliations +

Proceedings Volume 8208, Lasers in Dentistry XVIII; 820804 (2012) https://doi.org/10.1117/12.908965
Event: SPIE BiOS, 2012, San Francisco, California, United States

Abstract

Frequent monitoring of gingival sulcus will provide valuable information for judging the presence and severity of periodontal disease. Optical coherence tomography, as a 3D high resolution high speed imaging modality is able to provide information for pocket depth, gum contour, gum texture, gum recession simultaneously. A handheld forward-viewing miniature resonant fiber-scanning probe was developed for in-vivo gingival sulcus imaging. The fiber cantilever driven by magnetic force vibrates at resonant frequency. A synchronized linear phase-modulation was applied in the reference arm by the galvanometer-driven reference mirror. Full-range, complex-conjugate-free, real-time endoscopic SD-OCT was achieved by accelerating the data process using graphics processing unit. Preliminary results showed a real-time in-vivo imaging at 33 fps with an imaging range of lateral 2 mm by depth 3 mm. Gap between the tooth and gum area was clearly visualized. Further quantification analysis of the gingival sulcus will be performed on the image acquired.

Citation Download Citation

Yong Huang, Kang Zhang, WonJin Yi, and Jin U. Kang "In-vivo gingival sulcus imaging using full-range, complex-conjugate-free, endoscopic spectral domain optical coherence tomography", Proc. SPIE 8208, Lasers in Dentistry XVIII, 820804 (30 January 2012); https://doi.org/10.1117/12.908965

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