Research Papers: Imaging

Detection of occlusal caries in primary teeth using swept source optical coherence tomography

[+] Author Affiliations
Yukie Nakajima, Michiyo Miyashin, Yuzo Takagi

Tokyo Medical and Dental University, Pediatric Dentistry, Department of Orofacial Development and Function, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan

Yasushi Shimada, Alireza Sadr, Ikumi Wada

Tokyo Medical and Dental University, Cariology and Operative Dentistry, Department of Restorative Sciences, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan

Junji Tagami

Tokyo Medical and Dental University, Department of Cariology and Operative Dentistry, Global Center of Excellence (GCOE) Program, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan

Yasunori Sumi

National Center for Geriatrics and Gerontology, Department for Advanced Dental Research, Center of Advanced Medicine for Dental and Oral Diseases, 35 Gengo, Morioka-cho, Obu, Aichi 474-8511, Japan

J. Biomed. Opt. 19(1), 016020 (Jan 27, 2014). doi:10.1117/1.JBO.19.1.016020
History: Received July 24, 2013; Revised December 20, 2013; Accepted December 23, 2013
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Abstract.  This study aimed to investigate swept source optical coherence tomography (SS-OCT) as a detecting tool for occlusal caries in primary teeth. At the in vitro part of the study, 38 investigation sites of occlusal fissures (noncavitated and cavitated) were selected from 26 extracted primary teeth and inspected visually using conventional dental equipment by six examiners without any magnification. SS-OCT cross-sectional images at 1330-nm center wavelength were acquired on the same locations. The teeth were then sectioned at the investigation site and directly viewed under a confocal laser scanning microscope (CLSM) by two experienced examiners. The presence and extent of caries were scored in each observation. The results obtained from SS-OCT and conventional visual inspections were compared with those of CLSM. Consequently, SS-OCT could successfully detect both cavitated and noncavitated lesions. The magnitude of sensitivity for SS-OCT was higher than those for visual inspection (sensitivity of visual inspection and SS-OCT, 0.70 versus 0.93 for enamel demineralization, 0.49 versus 0.89 for enamel cavitated caries, and 0.36 versus 0.75 for dentin caries). Additionally, occlusal caries of a few clinical cases were observed using SS-OCT in vivo. The results indicate that SS-OCT has a great detecting potential for occlusal caries in primary teeth.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Yukie Nakajima ; Yasushi Shimada ; Alireza Sadr ; Ikumi Wada ; Michiyo Miyashin, et al.
"Detection of occlusal caries in primary teeth using swept source optical coherence tomography", J. Biomed. Opt. 19(1), 016020 (Jan 27, 2014). ; http://dx.doi.org/10.1117/1.JBO.19.1.016020


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