Biomedical Optical Imaging Lab, Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, No.1001, University Road, East District, Hsinchu City 30010, Taiwan.
Department of Stomatology, Taipei Veterans General Hospital, No. 201, Section 2, Shipai Road, Beitou District, Taipei City 11217, Taiwan.
Sensors (Basel). 2019 Nov 14;19(22):4971. doi: 10.3390/s19224971.
Dental enamel constitutes the outer layer of a crown of teeth and grows nearly parallel. This unique nanostructure makes enamel possess birefringence properties. Currently, there is still no appropriate clinical solution to examine dental hard tissue diseases. Therefore, we developed an optical polarization imaging system for diagnosing dental calculus, caries, and cracked tooth syndrome. By obtaining Stokes signals reflected from samples, Mueller images were constructed and analyzed using Lu-Chipman decomposition. The results showed that diattenuation and linear retardance images can distinguish abnormal tissues. Our result also aligns with previous studies assessed by other methods. Polarimetric imaging is promising for real-time diagnosing.
牙釉质构成了牙齿冠的外层，并且几乎平行生长。这种独特的纳米结构使牙釉质具有双折射特性。目前，仍然没有合适的临床解决方案来检查牙体硬组织疾病。因此，我们开发了一种用于诊断牙石、龋齿和牙隐裂综合征的光学偏振成像系统。通过获取样品反射的斯托克斯信号，构建穆勒图像，并使用 Lu-Chipman 分解进行分析。结果表明，双折射和线性延迟图像可以区分异常组织。我们的结果与以前使用其他方法评估的研究结果一致。偏振成像有望用于实时诊断。
