Subgingival calculus imaging based on swept-source optical coherence tomography |
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| Authors: | Hsieh Yao-Sheng Ho Yi-Ching Lee Shyh-Yuan Lu Chih-Wei Jiang Cho-Pei Chuang Ching-Cheng Wang Chun-Yang Sun Chia-Wei |
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| Affiliation: | National Yang-Ming University, Biophotonics Interdisciplinary Research Center and Institute of Biophotonics, No. 155, Sec. 2, Linong Street, Taipei, Taiwan 112, Taipei, Taiwan. |
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| Abstract: | ![]()
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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