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- Title
Diagnosis of Occlusal Caries with Dynamic Slicing of 3D Optical Coherence Tomography Images.
- Authors
Luong, Minh N.; Shimada, Yasushi; Araki, Kazuyuki; Yoshiyama, Masahiro; Tagami, Junji; Sadr, Alireza
- Abstract
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 (α = 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.
- Subjects
AMERICAN Dental Association; RADIOGRAPHS; OPTICAL coherence tomography; TOOTH sensitivity; INSPECTION &; review; TOOTH demineralization; CAVITATION; RADIOGRAPHY
- Publication
Sensors (14248220), 2020, Vol 20, Issue 6, p1659
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s20061659