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. 2016 Dec 1;34(6):564-569.
doi: 10.7518/hxkq.2016.06.003.

[Ex vivo assessment of the potency of optical coherence tomography for the detection of early occlusal caries]

[Article in Chinese]
Dai Xiao-Hua  1 , Yao Hui  1 , Lian Xiaoli  1 , Li Yanni  1 , Wang Yingying  2 , Liu Xiaobin  2 , Xing Lu  2
Affiliations

[Ex vivo assessment of the potency of optical coherence tomography for the detection of early occlusal caries]

[Article in Chinese]
Dai Xiao-Hua et al. Hua Xi Kou Qiang Yi Xue Za Zhi. .

Abstract
in English, Chinese

Objective: This study aimed to evaluate the potency of optical coherence tomography (OCT) to detect early occlusal caries compared with clinical visual examination.

Methods: Approximately 97 sites of occlusal fissures on 77 extracted accessional human teeth were scored by three examiners using conventional visual examination and OCT. Results of histological examination on these sites obtained by polarimicroscope served as a gold standard to analyze the sensitivity (SE), specificity (SP), positive predictive value (PPV), and negative predictive value (NPV). Results of the area under receiver operating characteristic (ROC) curve (AUC) by visual examination and OCT were also analyzed. The Spearman's rank correlation coefficient with histology and the inter-examiner reliability were compared.

Results: For sites of enamel demineralization limited to the outer 1/2 of the enamel layer, the detection rate of OCT (14/25) was obviously higher than that of the clinical and visual examination (3/25). SE, SP, PPV and NPV of OCT during diagnosis of the early occlusal caries (0.83, 0.64, 0.87 and 0.57) were higher than that of the visual examination (0.79, 0.60, 0.85 and 0.50). AUC (95%CI) of OCT and the visual examination were 0.737 (0.569-0.822) and 0.696 (0.614-0.859), respectively. No statistically significant difference was observed between the results. Results of OCT correlated well with histology (r=0.559, P<0.05). The inter-examiner reliability of OCT was medium.

Conclusions: OCT can accurately detect early occlusal lesions atraumatically with high sensitivity and effectiveness. OCT exhibits the potential of auxiliary clinical diagnosis enhancing detection rate and finally implementing early diagnosis and early intervention of early occlusal lesions in clinical practice.

目的 比较光学相干断层成像技术（OCT）与临床探视诊对人牙窝沟早期釉质龋的检出效能。 方法 获取77颗人离体恒磨牙面的97个可疑早期龋位点OCT二维图像，由3位临床医师双盲法分别通过OCT图像和探视诊方法对这些位点进行评分，以偏光显微镜获取的组织学图像为金标准，评估OCT、临床探视诊检出早期窝沟龋的敏感度（SE）、特异度（SP）、阳性预测值（PPV）、阴性预测值（NPV）及其与组织学评分结果的相关性；采用Kappa检验分析检测者间评分结果的一致性，采用非参数法Z检验比较受试者工作特征（ROC）曲线下面积（AUC）。 结果 对于脱矿局限于釉质表层外1/2的窝沟早期龋，OCT检出率（14/25）明显优于探视诊（3/25）。OCT检出窝沟早期釉质龋的SE、SP、PPV、NPV（0.83、0.64、0.87、0.57）均高于探视诊（0.79、0.60、0.85、0.50）。OCT与探视诊检测窝沟早期龋的AUC（95% CI）分别为0.737（0.569~0.822）、0.696（0.614~0.859），二者间差异无统计学意义。OCT评分与组织学评分呈正相关（r=0.559，P<0.05），检测者间检测结果的一致性为中等。 结论 OCT能够敏感、无创、有效地检出早期窝沟龋，具有辅助临床探视诊检出早期窝沟龋的应用潜能。.

Keywords: early caries; occlusal caries; optical coherence tomography; visual examination.

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Figures

图 1
图 1. 不同程度早期窝沟龋及其相应的组织学和OCT图像
Fig 1 Different progressive stages of occlusal caries and its corresponding histological and OCT images 从上至下依次为组织学评分为0、1、2的样本；从左至右依次为咬合面图像（箭头a示检测路径）、检测路径对应的偏光显微镜图像、检测路径对应的OCT图像。
See this image and copyright information in PMC

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References

    1. Liu X, Jones RS. Evaluating a novel fissure caries model using swept source optical coherence tomography[J] Dent Mater J. 2013;32(6):906–912. - PubMed
    1. Otis LL, Colston BW, Jr, Everett MJ, et al. Dental optical coherence tomography: a comparison of two in vitro systems[J] Dentomaxillofac Radiol. 2000;29(2):85–89. - PubMed
    1. Le MH, Darling CL, Fried D. Automated analysis of lesion depth and integrated reflectivity in PS-OCT scans of tooth demineralization[J] Lasers Surg Med. 2010;42(1):62–68. - PMC - PubMed
    1. 李 燕妮, 姚 晖, 连 小丽, et al. 釉质早期龋的光学相干断层成像与定量研究[J] 华西口腔医学杂志. 2015;33(2):121–124. - PMC - PubMed
    2. Li YN, Yao H, Lian XL, et al. Imaging and quantitative of early caries using optical coherence tomography[J] West Chin J Stomatol. 2015;33(2):121–124. - PMC - PubMed
    1. Lee RC, Kang H, Darling CL, et al. Automated assessment of the remineralization of artificial enamel lesions with polarization-sensitive optical coherence tomography[J] Biomed Opt Express. 2014;5(9):2950–2962. - PMC - PubMed

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