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Proceedings Paper

Cross-sectional imaging of extracted jaw bone of a pig by optical coherence tomography
Author(s): Noriko Tachikawa; Reiko Yoshimura; Kohji Ohbayashi
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Paper Abstract

Dental implantation has become popular in dental treatments. Although careful planning is made to identify vital structures such as the inferior alveolar nerve or the sinus, as well as dimensions of the bone, prior to commencement of surgery, dental implantation is not fully free from risks. If a diagnostic tool is available to objectively measure bone feature before surgery and dimensions during surgery, considerable fraction of the risks may be avoided. Optical coherence tomography (OCT) is a candidate for the purpose, which enables cross-sectional imaging of bone. In this work, we performed in vitro cross-sectional imaging of extracted pig's jawbone with swept source OCT using superstructure-grating distributed Bragg reflector (SSG-DBR) laser as the source. The relatively long wavelength range of 1600nm of the laser is suitable for deeper bone imaging. We confirmed an image penetration depth of about 3 mm in physical length, which satisfies one of the criterions to apply OCT for in vivo diagnosis of bone during surgery.

Paper Details

Date Published: 17 February 2011
PDF: 6 pages
Proc. SPIE 7884, Lasers in Dentistry XVII, 78840F (17 February 2011); doi: 10.1117/12.873943
Show Author Affiliations
Noriko Tachikawa, Tokyo Medical and Dental Univ. (Japan)
Reiko Yoshimura, Kitasato Univ. (Japan)
Kohji Ohbayashi, Kitasato Univ. (Japan)

Published in SPIE Proceedings Vol. 7884:
Lasers in Dentistry XVII
Peter Rechmann; Daniel Fried, Editor(s)

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