Algarni Amnah, Kang Hobin, Fried Daniel, Eckert George J, Hara Anderson T
Department of Cariology, Operative Dentistry and Dental Public Health, Indiana University School of Dentistry, Indianapolis, Ind., USA.
Caries Res. 2016;50(4):400-6. doi: 10.1159/000446779. Epub 2016 Jul 26.
Optical coherence tomography (OCT) has been introduced in dentistry as a nondestructive diagnostic imaging tool that does not utilize ionizing radiation. This study investigated the agreement between polarization-sensitive OCT (PS-OCT), microcomputed tomography (μ-CT), and histology for enamel thickness measurements. Human enamel samples were prepared and evaluated with μ-CT and PS-OCT and then sectioned and observed via digital transversal light microscopy. For all methods, a standard transversal section (b-scan) in each sample was selected, and the enamel thickness was measured at three predetermined positions using ImageJ analysis software. The results revealed significant high agreement between all tested methods, indicating the potential of PS-OCT as a clinical tool to effectively measure enamel thickness.
光学相干断层扫描（OCT）已作为一种不使用电离辐射的无损诊断成像工具引入牙科领域。本研究调查了偏振敏感光学相干断层扫描（PS-OCT）、微型计算机断层扫描（μ-CT）和组织学在测量牙釉质厚度方面的一致性。制备了人类牙釉质样本，先用μ-CT和PS-OCT进行评估，然后切片并通过数字横向光显微镜观察。对于所有方法，在每个样本中选择一个标准横向截面（B扫描），并使用ImageJ分析软件在三个预定位置测量牙釉质厚度。结果显示，所有测试方法之间都存在高度显著的一致性，表明PS-OCT作为一种有效测量牙釉质厚度的临床工具具有潜力。
