Cross-sectional imaging of extracted jaw bone of a pig by optical coherence tomography

Noriko Tachikawa; Reiko Yoshimura; Kohji Ohbayashi

doi:10.1117/12.873943

17 February 2011 Cross-sectional imaging of extracted jawbone of a pig by optical coherence tomography

Noriko Tachikawa, Reiko Yoshimura, Kohji Ohbayashi

Proceedings Volume 7884, Lasers in Dentistry XVII; 78840F (2011) https://doi.org/10.1117/12.873943
Event: SPIE BiOS, 2011, San Francisco, California, United States

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.

Citation Download Citation

Noriko Tachikawa, Reiko Yoshimura, and Kohji Ohbayashi "Cross-sectional imaging of extracted jawbone of a pig by optical coherence tomography", Proc. SPIE 7884, Lasers in Dentistry XVII, 78840F (17 February 2011); https://doi.org/10.1117/12.873943

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