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Luong, Minh N. Department of Restorative Dentistry, University of Washington
Shimada, Yasushi Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University Kaken ID researchmap
Araki, Kazuyuki Division of Radiology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry
Yoshiyama, Masahiro Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University Kaken ID researchmap
Tagami, Junji Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
Sadr, Alireza Department of Restorative Dentistry, University of Washington
Detecting the extent of occlusal caries is a clinically important but challenging task required for treatment decision making. The aim of this study was to assess the diagnostic power of 3D swept-source optical coherence tomography (OCT) for evaluation of occlusal caries in comparison with X-ray radiography. Extracted human molars not exhibiting American Dental Association (ADA) criteria advanced caries were mounted in a silicone block and digital dental radiographs were captured from the buccal side. Subsequently, occlusal surfaces were scanned with a prototype Yoshida Dental OCT. Thirteen examiners evaluated the presence and extent of caries on radiographs and dynamically sliced 3D OCT video images, using a 4 level scale-0: intact; 1: enamel demineralization without cavitation; 2: enamel caries with cavitation; 3: dentin caries with or without cavitation. Sensitivity, specificity and area under operating characteristic curves (Az) were statistically analyzed (alpha = 0.05). Reliability analysis showed an excellent agreement among the 13 examiners for both methods. The OCT presented a significantly higher sensitivity and Az value for the detection of caries compared to radiographs (p < 0.05). Radiography showed especially low sensitivity for dentin caries (0-2 versus 3). Dynamic slicing of 3D OCT volumes is a powerful adjunct tool to visual inspection to diagnose the dentin occlusal caries in vitro.
optical coherence tomography
receiver operating characteristic (ROC) analysis
dentino-enamel junction DEJ
© 2020 by the authors.
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