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Abdinian M, Keshani F, Sadeghi F, Soltani P, Spagnuolo G, Rengo C. Evaluation of the effects of postprocessing settings in digital bitewing radiographs on proximal caries detection. Clin Exp Dent Res 2024; 10:e889. [PMID: 38712390 DOI: 10.1002/cre2.889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/25/2024] [Accepted: 04/22/2024] [Indexed: 05/08/2024] Open
Abstract
OBJECTIVE Radiographs are an integral part of detecting proximal caries. The aim of this study was to evaluate the effect of contrast, brightness, noise, sharpness, and γ adjustment of digital intraoral radiographs on the diagnosis of proximal caries. MATERIALS AND METHODS In this in vitro study, 40 extracted teeth including 20 premolars and 20 molars with enamel lesions (white spot or dentin discoloration seen through the enamel) were mounted together in groups of eight inside the skull. Bitewing radiographic images of each dental group were obtained by a photostimulable phosphor plate sensor with exposure conditions of 8 mA, 70 kV, and 0.2 s. The images were reconstructed by the built-in software and examined by two oral and maxillofacial radiologists in various settings of contrast, brightness, sharpness, noise, and γ. The teeth were then cut mesiodistally and the presence or absence of caries was confirmed by an oral and maxillofacial pathologist using a stereomicroscope. The data were then analyzed using the κ agreement coefficient, sensitivity, specificity, and accuracy (α = .05). RESULTS Adjustment of brightness and contrast led to higher diagnostic performance with an accuracy of 82.5% and 83.8 (for observers 1 and 2, respectively) and 82.5% (for both observers), respectively. Noise adjustment was the least helpful approach for diagnosis of proximal dental caries among other adjustments, with an accuracy of 78.8% and 77.5% for observers 1 and 2, respectively. CONCLUSION Brightness and contrast setting was more efficient in improving the diagnostic potential of bitewing radiographs compared to other adjustments.
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Affiliation(s)
- Mehrdad Abdinian
- Department of Oral and Maxillofacial Radiology, Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Forooz Keshani
- Department of Oral and Maxillofacial Pathology, Dental Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fateme Sadeghi
- Students Research Committee, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parisa Soltani
- Department of Oral and Maxillofacial Radiology, Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples "Federico II", Naples, Italy
| | - Gianrico Spagnuolo
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples "Federico II", Naples, Italy
- Therapeutic Dentistry Department, Institute for Dentistry, Sechenov University, Moscow, Russia
| | - Carlo Rengo
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples "Federico II", Naples, Italy
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Ray RR. Dental biofilm: Risks, diagnostics and management. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Gasqui MA, Pérard M, Decup F, Monsarrat P, Turpin YL, Villat C, Gueyffier F, Maucort-Boulch D, Roche L, Grosgogeat B. Place of a new radiological index in predicting pulp exposure before intervention for deep carious lesions. Oral Radiol 2021; 38:89-98. [PMID: 33954908 DOI: 10.1007/s11282-021-00530-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/16/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND During interventions for deep caries lesions without severe symptoms, preserving pulpal vitality is important to ensure treatment success, improve organ prognosis, and decrease cost-effectiveness. Current pre-operative radiographs allow visual estimation but not accurate measurement of lesion depth. PURPOSE Investigate the ability of ratio 'remaining/total dentin thickness' (RDT/TDT, as determined on pre-operative radiographs) to predict pulp exposure during excavation. METHODS This retrospective study (January 2018-June 2020) analyzed data on 360 patients. Four independent raters examined standard pre-operative radiographs and their contrasted versions. Lines put at the dentino-enamel junction, the floor of the carious lesion, and the pulp chamber wall allowed deriving RDT/TDT. Inter-rater agreements and concordance were assessed. A logistic regression accounting for measurement errors provided odds ratios that estimated the ability of the RDT/TDT to predict pulp exposure. RESULTS The median RDT/TDT ratio ranges were 16.8-26.5% on standard and 16.2-24.6% on contrasted radiographs. Inter-rater agreements on RDT/TDT were rather poor and inter-rater reliability was low and similar in standard and contrasted radiographs: the concordance correlation coefficients (95% CIs) were estimated at 0.46 (0.40; 0.51) and 0.46 (0.40; 0.52), respectively. The risk of pulp exposure increased by 2.5 times [odds ratio (95% CI) 2.57 (2.06; 3.20)] per 10-point decrease of the ratio on standard radiographs vs. 4.15 (3.15; 5.46) on contrasted radiographs. CONCLUSION RDT/TDT ratio is potentially helpful in predicting pulp exposure. However, the measurement errors on RDT and TDT being non-negligible and the interrater agreements poor, there is still place for advances through development of an automated process that will improve reliability and reproducibility of pulp exposure risk assessment. CLINICAL TRIAL Trial registration number. ClinicalTrials.gov NCT04607395, October 29, 2020.
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Affiliation(s)
- Marie-Agnès Gasqui
- Faculté d'Odontologie, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
- Service d'Odontologie, Hospices Civils de Lyon, Lyon, France
| | - Matthieu Pérard
- Faculté d'Odontologie, Université de Rennes 1, Rennes, France
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, Rennes, France
- Pôle d'Odontologie, CHU Rennes, Rennes, France
| | - Franck Decup
- Faculté d'Odontologie, Université Paris Descartes, Montrouge, France
- Pathologie Imagerie et Biothérapies orofaciales, EA2496, Université Paris Descartes, 92120, Montrouge, France
- Service d'Odontologie, Assistance Publique des Hôpitaux de Paris, Hôpital Charles-Foix, Ivry, France
| | - Paul Monsarrat
- Faculté d'Odontologie, Université Paul Sabatier, Toulouse, France
- STROMALab, Université de Toulouse, CNRS ERL 5311, EFS, INP-ENVT, Inserm, UPS, Toulouse, France
- Centre Hospitalo-Universitaire, Toulouse, France
| | - Yann-Loïg Turpin
- Faculté d'Odontologie, Université de Rennes 1, Rennes, France
- Pôle d'Odontologie, CHU Rennes, Rennes, France
| | - Cyril Villat
- Faculté d'Odontologie, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
- Service d'Odontologie, Hospices Civils de Lyon, Lyon, France
| | - François Gueyffier
- Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
- Équipe Biostatistique-Santé, Laboratoire de Biométrie et Biologie Évolutive, CNRS UMR 5558, Villeurbanne, France
- Hôpital cardiologique, Hospices Civils de Lyon, Lyon, France
| | - Delphine Maucort-Boulch
- Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
- Équipe Biostatistique-Santé, Laboratoire de Biométrie et Biologie Évolutive, CNRS UMR 5558, Villeurbanne, France
- Service de Biostatistique-Bioinformatique, Pôle Santé Publique, Hospices Civils de Lyon, Lyon, France
| | - Laurent Roche
- Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
- Équipe Biostatistique-Santé, Laboratoire de Biométrie et Biologie Évolutive, CNRS UMR 5558, Villeurbanne, France
- Service de Biostatistique-Bioinformatique, Pôle Santé Publique, Hospices Civils de Lyon, Lyon, France
| | - Brigitte Grosgogeat
- Faculté d'Odontologie, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France.
- Service d'Odontologie, Hospices Civils de Lyon, Lyon, France.
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Bardal R, Mobini M, Mirzaee M. In vitro comparison of two photostimulable phosphor plate systems for early detection of occlusal dentin caries with and without a sharpening filter. J Dent Res Dent Clin Dent Prospects 2021; 14:223-227. [PMID: 33575011 PMCID: PMC7867687 DOI: 10.34172/joddd.2020.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 07/07/2020] [Indexed: 11/14/2022] Open
Abstract
Background. Dental caries is the most important reason for tooth loss. Clinical examination is the most commonly used technique for occlusal caries diagnosis. The diagnostic power of digital systems is a matter of controversy in this field. The present study aimed to determine the diagnostic accuracy of two photostimulable phosphor plate (PSP) systems for early occlusal dentin caries in vitro.
Methods. Sixty-nine extracted molar and premolar teeth were used in this study. The teeth were mounted in triple blocks, and standard radiographs were taken by the Digora and Acteon digital radiographic systems. The original and filter 1-enhanced radiographs were evaluated by two experienced observers twice at an interval of two weeks, and dentin caries was recorded in Tables prepared for the study. The teeth were then sectioned in a buccolingual direction and evaluated under a stereomicroscope. The observers’ reports were compared with microscopic findings as the gold standard. SPSS 23 was used to calculate the kappa coefficient, sensitivity, specificity, and area under the ROC curve (AUC). Statistical significance was set at P<0.05.
Results. The internal and the external agreements in both imaging systems were good to excellent. The means of sensitivity, specificity, and AUC in the Acteon system were 34.1, 92.9, and 0.674, with 30.8, 94.8, and 0.659, respectively, in the Digora system.
Conclusion. The accuracy of early occlusal caries diagnosis was poor on both systems, and no significant difference was observed between the two systems at a 95% confidence interval. Although the AUC was slightly higher in the original images, there was no significant difference between them; however, due to their high specificity, they can prevent unnecessary treatments in the clinic.
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Affiliation(s)
- Roghieh Bardal
- Department of Oral and Maxillofacial Radiology, Dental Caries Prevention Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Mahshid Mobini
- Department of Oral and Maxillofacial Radiology, Dental Caries Prevention Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Matin Mirzaee
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran
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Costa ED, Brasil DM, Gaêta-Araujo H, Oliveira-Santos C, Freitas DQ. Do image enhancement filters in complementary metal oxide semiconductor and photostimulable phosphor imaging systems improve the detection of fractured endodontic instruments in periapical radiography? Oral Surg Oral Med Oral Pathol Oral Radiol 2021; 131:247-255. [DOI: 10.1016/j.oooo.2020.07.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 07/09/2020] [Accepted: 07/17/2020] [Indexed: 11/26/2022]
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Prados-Privado M, García Villalón J, Martínez-Martínez CH, Ivorra C, Prados-Frutos JC. Dental Caries Diagnosis and Detection Using Neural Networks: A Systematic Review. J Clin Med 2020; 9:E3579. [PMID: 33172056 PMCID: PMC7694692 DOI: 10.3390/jcm9113579] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/30/2020] [Accepted: 11/03/2020] [Indexed: 11/16/2022] Open
Abstract
Dental caries is the most prevalent dental disease worldwide, and neural networks and artificial intelligence are increasingly being used in the field of dentistry. This systematic review aims to identify the state of the art of neural networks in caries detection and diagnosis. A search was conducted in PubMed, Institute of Electrical and Electronics Engineers (IEEE) Xplore, and ScienceDirect. Data extraction was performed independently by two reviewers. The quality of the selected studies was assessed using the Cochrane Handbook tool. Thirteen studies were included. Most of the included studies employed periapical, near-infrared light transillumination, and bitewing radiography. The image databases ranged from 87 to 3000 images, with a mean of 669 images. Seven of the included studies labeled the dental caries in each image by experienced dentists. Not all of the studies detailed how caries was defined, and not all detailed the type of carious lesion detected. Each study included in this review used a different neural network and different outcome metrics. All this variability complicates the conclusions that can be made about the reliability or not of a neural network to detect and diagnose caries. A comparison between neural network and dentist results is also necessary.
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Affiliation(s)
- María Prados-Privado
- Asisa Dental, Research Department, C/José Abascal, 32, 28003 Madrid, Spain; (J.G.V.); (C.I.)
- Department of Signal Theory and Communications, Higher Polytechnic School, Universidad de Alcala de Henares, Ctra, Madrid-Barcelona, Km. 33,600, 28805 Alcala de Henares, Spain
- IDIBO GROUP (Group of High-Performance Research, Development and Innovation in Dental Biomaterials of Rey Juan Carlos University), Avenida de Atenas s/n, 28922 Alcorcon, Spain;
| | - Javier García Villalón
- Asisa Dental, Research Department, C/José Abascal, 32, 28003 Madrid, Spain; (J.G.V.); (C.I.)
| | | | - Carlos Ivorra
- Asisa Dental, Research Department, C/José Abascal, 32, 28003 Madrid, Spain; (J.G.V.); (C.I.)
| | - Juan Carlos Prados-Frutos
- IDIBO GROUP (Group of High-Performance Research, Development and Innovation in Dental Biomaterials of Rey Juan Carlos University), Avenida de Atenas s/n, 28922 Alcorcon, Spain;
- Department of Medical Specialties and Public Health, Faculty of Health Sciences, Universidad Rey Juan Carlos, Avenida de Atenas, 28922 Alcorcon, Spain
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Sahu RK, Rajguru JP, Pattnaiak N, Bardhan D, Nayak B. Assessment of diagnostic accuracy of a direct digital radiographic-CMOS image with four types of filtered images for the detection of occlusal caries. J Family Med Prim Care 2020; 9:206-214. [PMID: 32110592 PMCID: PMC7014896 DOI: 10.4103/jfmpc.jfmpc_934_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/04/2019] [Accepted: 12/12/2019] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Digital imaging has the potential to improve diagnostic accuracy and make quantitative diagnoses. In the recent decades, software for radiographic analysis has been investigated and developed for the detection of lesions and the quantitative assessment of the depth of a caries lesion. In addition, the accuracy of diagnosis may also be enhanced by programs that filter the images. These programs can adjust the brightness and contrast, determine the gray level, invert the shades of gray, and apply pseudocolors. Few studies compared different types of digital images in the diagnosis of changes in the tooth crown. AIM The main aim of this study was to assess the the diagnostic accuracy of a direct digital radiography (DDR)-CMOS image with four types of filtered images for the detection of occlusal caries. MATERIALS AND METHODS Fifty randomly selected patients' teeth were clinically examined and digitally radiographed. Radiographed images are converted into four filter images with the help of software. Filtered images were then selected for inter- and intraobserver examination and the result was subjected to statistical analysis. CONCLUSION DDR-CMOS and negative image were found to be more useful in diagnosing occlusal caries.
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Affiliation(s)
- Rohit Kumar Sahu
- Department of Oral Medicine and Radiology, Hi-Tech Dental College and Hospital, Bhubaneswar, Odisha, India
| | - Jagadish P Rajguru
- Department of Oral and Maxillofacial Pathology, Hi-Tech Dental College and Hospital, Bhubaneswar, Odisha, India
| | - Naina Pattnaiak
- Department of Periodontology and Implantology, Hi-Tech Dental College and Hospital, Bhubaneswar, Odisha, India
| | - Debajyoti Bardhan
- Department of Oral Medicine and Radiology, Hi-Tech Dental College and Hospital, Bhubaneswar, Odisha, India
| | - Bikash Nayak
- Department of Oral Medicine and Radiology, Hi-Tech Dental College and Hospital, Bhubaneswar, Odisha, India
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