Matsuura Chihiro, Shimada Yasushi, Sadr Alireza, Sumi Yasunori, Tagami Junji
Cariology and Operative Dentistry, Oral Restitution Department, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University.
Department of Operative Dentistry, Graduate School of Medicine and Dentistry, Okayama University.
Dent Mater J. 2018 Jul 29;37(4):642-649. doi: 10.4012/dmj.2017-252. Epub 2018 Apr 17.
The aims of this study were to assess the diagnostic accuracy of swept-source optical coherence tomography (SS-OCT) for detection of caries beneath composite restorations and to compare the results with those obtained by radiography. Flat dentin surfaces with and without natural caries were bonded with 1- or 2-mm thick composite restorations. SS-OCT scanning was performed over the composite restorations to construct three-dimensional (3D) images of the resin-dentin interface. Images were chosen from the 3D constructions to detect caries beneath the restorations. The sensitivity, specificity, false positive and negative predictive values for caries detection, and Az values from receiver-operating characteristic analysis were calculated and compared with those of digital dental radiography at a significance level of α=0.05. Intraexaminer and interexaminer reproducibility was compared between SSOCT and radiography. SS-OCT could detect caries, which appeared as a bright zone beneath composite up to 2-mm thick. SS-OCT provided greater diagnostic accuracy than radiography.
本研究的目的是评估扫频光学相干断层扫描（SS-OCT）检测复合树脂修复体下方龋损的诊断准确性，并将结果与放射成像所得结果进行比较。有或无自然龋损的平坦牙本质表面用1毫米或2毫米厚的复合树脂修复体进行粘结。在复合树脂修复体上进行SS-OCT扫描，以构建树脂-牙本质界面的三维（3D）图像。从3D构建图像中选取图像以检测修复体下方的龋损。计算龋损检测的灵敏度、特异性、假阳性和阴性预测值，以及来自受试者工作特征分析的Az值，并在显著性水平α=0.05时与数字牙科放射成像的结果进行比较。比较了SS-OCT和放射成像在检查者内和检查者间的可重复性。SS-OCT能够检测到龋损，其在厚度达2毫米的复合树脂下方表现为一个明亮区域。SS-OCT比放射成像具有更高的诊断准确性。
