National Yang-Ming University, Biophotonics Interdisciplinary Research Center and Institute of Biophotonics, No. 155, Sec. 2, Linong Street, Taipei, Taiwan 112, Taipei, Taiwan.
J Biomed Opt. 2011 Jul;16(7):071409. doi: 10.1117/1.3602851.
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.
我们使用扫频源光学相干断层扫描（SS-OCT）对牙石进行了特征描述和成像。牙釉质、牙本质、牙骨质和牙石的折射率分别测量为 1.625 ± 0.024、1.534 ± 0.029、1.570 ± 0.021 和 2.097 ± 0.094。牙石具有很强的散射特性，因此，牙石区域可以通过 SS-OCT 成像从牙釉质中识别出来。作为体外样本，我们对一个覆盖有牙龈组织的带有牙石的人牙进行了层析成像。
