1. Diagnostic Accuracy of 870-nm Spectral-Domain OCT with Enhanced Depth Imaging for the Detection of Caries beneath Ceramics

    Diagnostic Accuracy of 870-nm Spectral-Domain OCT with Enhanced Depth Imaging for the Detection of Caries beneath Ceramics

    Abstract Objectives To evaluate the diagnostic accuracy of optical coherence tomography (OCT) for the non-invasive detection of caries adjacent to ceramic materials. Methods Disks made from five ceramic materials (hybrid ceramic, feldspathic ceramic, zirconia-reinforced lithium silicate, lithium disilicate, and high-translucent zirconia) were ground to the recommended material thickness for single crown restorations and laminated with a 100 µm thick layer of one of three adhesive cements. The disks were fixed to extracted human molars with or without carious lesions of one of three standardized sizes. A total of 240 stacks of cross-sectional scans obtained using an 870-nm SD-OCT with enhanced ...

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