Special Section on Hard-Tissue Optics and Related Methods

Subgingival calculus imaging based on swept-source optical coherence tomography

[+] Author Affiliations
Yao-Sheng Hsieh, Chia-Wei Sun

National Yang-Ming University, Biophotonics Interdisciplinary Research Center and Institute of Biophotonics, No. 155, Sec. 2, Linong Street, Taipei, Taiwan 112, Taipei, Taiwan

National Chiao-Tung University, Department of Photonics, Hsinchu, Taiwan

Yi-Ching Ho

National Yang-Ming University, School of Dentistry, Taipei, Taiwan

Shyh-Yuan Lee

National Yang-Ming University, School of Dentistry, Taipei, Taiwan

Taipei Veterans General Hospital, Department of Stomatology, Taipei, Taiwan

Chih-Wei Lu

Industrial Technology Research Institute, Medical Electronics and Device Technology Center, Hsinchu, Taiwan

Cho-Pei Jiang

National Formosa University, Department of Power Mechanical Engineering, Yunlin, Taiwan

Ching-Cheng Chuang

National Taiwan University, Institute of Biomedical Engineering, Taipei, Taiwan

Chun-Yang Wang

National Chiao-Tung University, Department of Photonics, Hsinchu, Taiwan

J. Biomed. Opt. 16(7), 071409 (July 25, 2011). doi:10.1117/1.3602851
History: Received October 04, 2010; Revised May 20, 2011; Accepted June 02, 2011; Published July 25, 2011; Online July 25, 2011
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We characterized and imaged dental calculus using swept-source optical coherence tomography (SS-OCT). The refractive indices of enamel, dentin, cementum, and calculus were measured as 1.625 ± 0.024, 1.534 ± 0.029, 1.570 ± 0.021, and 2.097 ± 0.094, respectively. Dental calculus leads strong scattering properties, and thus, the region can be identified from enamel with SS-OCT imaging. An extracted human tooth with calculus is covered with gingiva tissue as an in vitro sample for tomographic imaging.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation

Yao-Sheng Hsieh ; Yi-Ching Ho ; Shyh-Yuan Lee ; Chih-Wei Lu ; Cho-Pei Jiang, et al.
"Subgingival calculus imaging based on swept-source optical coherence tomography", J. Biomed. Opt. 16(7), 071409 (July 25, 2011). ; http://dx.doi.org/10.1117/1.3602851


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