Diagnosis of Occlusal Caries with Dynamic Slicing of 3D Optical Coherence Tomography Images

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 rad...

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Main Authors: Minh N. Luong, Yasushi Shimada, Kazuyuki Araki, Masahiro Yoshiyama, Junji Tagami, Alireza Sadr
Format: Article
Language:English
Published: MDPI AG 2020-03-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/6/1659
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author Minh N. Luong
Yasushi Shimada
Kazuyuki Araki
Masahiro Yoshiyama
Junji Tagami
Alireza Sadr
author_facet Minh N. Luong
Yasushi Shimada
Kazuyuki Araki
Masahiro Yoshiyama
Junji Tagami
Alireza Sadr
author_sort Minh N. Luong
collection DOAJ
description 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&#8212;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 (&#945; = 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 (<i>p</i> &lt; 0.05). Radiography showed especially low sensitivity for dentin caries (0&#8722;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.
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spelling doaj.art-17f94300620d435296f9fbb02f4610952022-12-22T02:20:38ZengMDPI AGSensors1424-82202020-03-01206165910.3390/s20061659s20061659Diagnosis of Occlusal Caries with Dynamic Slicing of 3D Optical Coherence Tomography ImagesMinh N. Luong0Yasushi Shimada1Kazuyuki Araki2Masahiro Yoshiyama3Junji Tagami4Alireza Sadr5Department of Restorative Dentistry, University of Washington, Seattle, WA 98195, USADepartment of Operative Dentistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8525, JapanDivision of Radiology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo 145-8515, JapanDepartment of Operative Dentistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8525, JapanDepartment of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, JapanDepartment of Restorative Dentistry, University of Washington, Seattle, WA 98195, USADetecting 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&#8212;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 (&#945; = 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 (<i>p</i> &lt; 0.05). Radiography showed especially low sensitivity for dentin caries (0&#8722;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.https://www.mdpi.com/1424-8220/20/6/1659dentinenameloptical coherence tomographyradiographreceiver operating characteristic (roc) analysishidden cariesdentino-enamel junction dej
spellingShingle Minh N. Luong
Yasushi Shimada
Kazuyuki Araki
Masahiro Yoshiyama
Junji Tagami
Alireza Sadr
Diagnosis of Occlusal Caries with Dynamic Slicing of 3D Optical Coherence Tomography Images
Sensors
dentin
enamel
optical coherence tomography
radiograph
receiver operating characteristic (roc) analysis
hidden caries
dentino-enamel junction dej
title Diagnosis of Occlusal Caries with Dynamic Slicing of 3D Optical Coherence Tomography Images
title_full Diagnosis of Occlusal Caries with Dynamic Slicing of 3D Optical Coherence Tomography Images
title_fullStr Diagnosis of Occlusal Caries with Dynamic Slicing of 3D Optical Coherence Tomography Images
title_full_unstemmed Diagnosis of Occlusal Caries with Dynamic Slicing of 3D Optical Coherence Tomography Images
title_short Diagnosis of Occlusal Caries with Dynamic Slicing of 3D Optical Coherence Tomography Images
title_sort diagnosis of occlusal caries with dynamic slicing of 3d optical coherence tomography images
topic dentin
enamel
optical coherence tomography
radiograph
receiver operating characteristic (roc) analysis
hidden caries
dentino-enamel junction dej
url https://www.mdpi.com/1424-8220/20/6/1659
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