deep caries
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OBJECTIVE: The objective of this study was to compare the detection of caries in bitewing radiographs by multiple dentists with an automatic method and to evaluate the detection performance in the absence of a reliable ground truth. MATERIALS AND METHODS: Four experts and three novices marked caries using bounding boxes in 100 bitewing radiographs. The same dataset was processed by an automatic object detection deep learning method. All annotators were compared in terms of the number of errors and intersection over union (IoU) using pairwise comparisons, with respect to the consensus standard, and with respect to the annotator of the training dataset of the automatic method. RESULTS: The number of lesions marked by experts in 100 images varied between 241 and 425. Pairwise comparisons showed that the automatic method outperformed all dentists except the original annotator in the mean number of errors, while being among the best in terms of IoU. With respect to a consensus standard, the performance of the automatic method was best in terms of the number of errors and slightly below average in terms of IoU. Compared with the original annotator, the automatic method had the highest IoU and only one expert made fewer errors. CONCLUSIONS: The automatic method consistently outperformed novices and performed as well as highly experienced dentists. CLINICAL SIGNIFICANCE: The consensus in caries detection between experts is low. An automatic method based on deep learning can improve both the accuracy and repeatability of caries detection, providing a useful second opinion even for very experienced dentists.
- MeSH
- interproximální technika MeSH
- lidé MeSH
- náchylnost k zubnímu kazu * MeSH
- zubní kaz * diagnostické zobrazování MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
OBJECTIVE: The aim of this work was to assemble a large annotated dataset of bitewing radiographs and to use convolutional neural networks to automate the detection of dental caries in bitewing radiographs with human-level performance. MATERIALS AND METHODS: A dataset of 3989 bitewing radiographs was created, and 7257 carious lesions were annotated using minimal bounding boxes. The dataset was then divided into 3 parts for the training (70%), validation (15%), and testing (15%) of multiple object detection convolutional neural networks (CNN). The tested CNN architectures included YOLOv5, Faster R-CNN, RetinaNet, and EfficientDet. To further improve the detection performance, model ensembling was used, and nested predictions were removed during post-processing. The models were compared in terms of the [Formula: see text] score and average precision (AP) with various thresholds of the intersection over union (IoU). RESULTS: The twelve tested architectures had [Formula: see text] scores of 0.72-0.76. Their performance was improved by ensembling which increased the [Formula: see text] score to 0.79-0.80. The best-performing ensemble detected caries with the precision of 0.83, recall of 0.77, [Formula: see text], and AP of 0.86 at IoU=0.5. Small carious lesions were predicted with slightly lower accuracy (AP 0.82) than medium or large lesions (AP 0.88). CONCLUSIONS: The trained ensemble of object detection CNNs detected caries with satisfactory accuracy and performed at least as well as experienced dentists (see companion paper, Part II). The performance on small lesions was likely limited by inconsistencies in the training dataset. CLINICAL SIGNIFICANCE: Caries can be automatically detected using convolutional neural networks. However, detecting incipient carious lesions remains challenging.
- MeSH
- deep learning * MeSH
- lidé MeSH
- náchylnost k zubnímu kazu MeSH
- neuronové sítě MeSH
- zubní kaz * diagnostické zobrazování MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
Volumetric shrinkage (VS) of conventional, bulk-fill, and core build-up resin-based composites (RBCs) of various thickness (1-5 mm) was measured using the modified bonded-disk method with confocal laser scanning microscopy. Additionally, the bottom-to-top ratio of Vickers hardness (%VH) was measured. Conventional RBCs exhibited significantly higher VS than bulk-fill and core build-up RBCs (p<0.05). As specimen thickness increased, VS relative to volume (%VS) and difference in VS at each depth (VSdepth) decreased. For conventional RBCs, there was a significant drop in VSdepth between 1 mm and 2 mm (p<0.05), and another drop was observed between 3 mm and 4 mm (p<0.05) where %VH decreased below 90%. For bulk-fill and core build-up RBCs, VSdepth decreased significantly between 2 mm and 3 mm (p<0.05), but %VH exceeded 90% even in 5 mm deep cavities. These results indicated that post-curing contributed to lower shrinkage in deeper layers, and that conventional RBCs were not adequately polymerized at the depth of over 3 mm.
... -- ORAL MALIGNANCIES 175 -- EXTRAVASCULAR (HEMORRHAGIC) ORAL LESIONS 176 METHAMPHETAMINE-INDUCED CARIES ... ... VEIN THROMBOSIS 371 -- CERVICAL RADICULOPATHY 372 -- DIGITAL CLUBBING 373 -- PHLEGMASIA DOLENS 374 -- DEEP ... ... DACTYLITIS (HAND-FOOT SYNDROME) 493 -- HAIR TOURNIQUET 494 -- FAILURE TO THRIVE 496 -- NURSING BOTTLE CARIES ... ... 884 -- SUBXIPHOID LONG-AXIS (IVC) \' 887 -- LUNG ULTRASOUND 888 -- ABDOMINAL AORTA ULTRASOUND 891 -- DEEP ...
Fifth edition xl, 1016 stran : ilustrace ; 28 cm
- MeSH
- náhlé příhody MeSH
- péče o pacienty v kritickém stavu MeSH
- rány a poranění MeSH
- terapie náhlých příhod MeSH
- Publikační typ
- atlasy MeSH
- Konspekt
- Patologie. Klinická medicína
- NLK Obory
- urgentní lékařství
- NLK Publikační typ
- kolektivní monografie
Úvod a cíl: Sanace kariézní léze patří ve stomatologii již odedávna mezi základní výkony, avšak i v dnešní době stále není zcela jednotný přístup k tomuto ošetření v případě kazu blízkého zubní dřeni. Existují tři rozdílné techniky ošetření, které mají své výhody i nevýhody, nicméně jejich společným cílem je zachování vitality zubu. První přístup k ošetření je totální exkavace všech kariézních tkání se zhotovením definitivní výplně, druhým způsobem ošetření je selektivní exkavace s ponecháním malého množství změklých tkání pulpálně a zhotovením definitivní výplně. Třetí technikou je sekvenční exkavace, což znamená dvoudobé ošetření s postupným odstraněním všech kariézních tkání. Toto přehledové sdělení je zaměřeno právě na třetí typ ošetření, tedy na odloženou exkavaci a možnosti provedení s využitím různých remineralizačních materiálů. Metody: Pro tento přehledový článek byly vyhledány studie v anglickém jazyku za pomoci klíčových slov (kaz blízký dřeni, odložená exkavace, nepřímé překrytí zubní dřeně, hydroxid vápenatý, skloionomerní cement, kalciumsilikátový cement, kalciumfosfátový cement) a jejich obměnou s cílem shrnout současné poznatky o metodě odložené exkavace a materiálech používaných v této indikaci. Vyhledávalo se v databázích PubMed, Web of Science a Cochrane Library a zdrojích tuzemské literatury. Byly vybrány studie především z časopisů s impakt faktorem a vydaných v rozmezí let 2010 až 2020. Pro hlubší pochopení historického vývoje problematiky byla literatura doplněna i o několik publikací z druhé poloviny minulého století. Závěr: Ošetření hlubokého kazu se zachováním vitality je v dnešní době velmi diskutované téma a stále není jednotný postup, jak tento výkon provést. Při dvoudobém ošetření jsou k nepřímému překrytí zubní dřeně nejčastěji využívány materiály na bázi hydroxidu vápenatého a skloionomerních cementů. Kalciumfosfátové cementy mají vzhledem ke svým vlastnostem vysoký potenciál využití v této indikaci a zvýšení úspěšnosti ošetření, ale je ještě třeba udělat podrobnější in vitro výzkum a klinické studie.
Introduction, aim: Treatment of caries lesion has been for a long time one of the basic procedures in dentistry, but even today there is not completely uniform approach to this treatment in case of deep caries lesion near the dental pulp. There are three different techniques that have both advantages and disadvantages; nevertheless their common goal is to maintain the vitality of the tooth. The first approach to treatment is the total excavation of all carious tissues and a definitive filling application. The other method of treatment is the selective excavation with leaving a small area of softened dentin pulpally and application of a permanent filling. The third technique is stepwise excavation, which means two-visit treatment with gradual excavation of all carious tissues. This review article is focused on the third type of the treatment and the possibility of using various remineralization materials. Methods: For this article, studies in English were searched using key words (deep caries, stepwise excavation, indirect pulp capping, calcium hydroxide, glassionomer cement, calcium silicate cement, calcium phosphate cement) and their variations in order to summarize current knowledge about stepwise excavation method and materials used in this indication. The search was performed using PubMed, Web of Science and Cochrane Library databases and supplied by sources of Czech literature. Studies were selected mainly from journals with impact factor and published between 2010 and 2020. For the deeper understanding of the historical development of the issue, the literature was supplemented by several publications from the second half of the last century. Conclusion: The treatment of deep caries lesion with the preservation of vitality is a much discussed topic today and there is still not uniform approach, how to perform this procedure. In case of stepwise excavation, calcium hydroxide-based materials, glass ionomer cements and calcium silicate cements are usually used for indirect pulp capping. Due to their properties, calcium phosphate cements have a high potential for use in this indication and may increase the success rate of treatment, however more detailed in vitro research and clinical studies are still needed.
- Klíčová slova
- odložená exkavace,
- MeSH
- lidé MeSH
- materiály pro překrytí zubní dřeně a pulpektomii MeSH
- překrytí zubní dřeně metody MeSH
- zubní cementy MeSH
- zubní kaz * terapie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- přehledy MeSH
This study investigated the potential of salivary bacterial and protein markers for evaluating the disease status in healthy individuals or patients with gingivitis or caries. Saliva samples from caries- and gingivitis-free individuals (n = 18), patients with gingivitis (n = 17), or patients with deep caries lesions (n = 38) were collected and analyzed for 44 candidate biomarkers (cytokines, chemokines, growth factors, matrix metalloproteinases, a metallopeptidase inhibitor, proteolytic enzymes, and selected oral bacteria). The resulting data were subjected to principal component analysis and used as a training set for random forest (RF) modeling. This computational analysis revealed four biomarkers (IL-4, IL-13, IL-2-RA, and eotaxin/CCL11) to be of high importance for the correct depiction of caries in 37 of 38 patients. The RF model was then used to classify 10 subjects (five caries-/gingivitis-free and five with caries), who were followed over a period of six months. The results were compared to the clinical assessments of dental specialists, revealing a high correlation between the RF prediction and the clinical classification. Due to the superior sensitivity of the RF model, there was a divergence in the prediction of two caries and four caries-/gingivitis-free subjects. These findings suggest IL-4, IL-13, IL-2-RA, and eotaxin/CCL11 as potential salivary biomarkers for identifying noninvasive caries. Furthermore, we suggest a potential association between JAK/STAT signaling and dental caries onset and progression.
- Publikační typ
- časopisecké články MeSH
... Treatment of the Exposed Dentine Pulp Complex 253 -- Lars Bj0rndal -- 9.1 Diagnostic Challenges of Deep ... ... Caries and Traumatic Pulp Exposure 253 -- 9.2 Discerning Pulpal Diagnosis 254 -- 9.3 The Pulp Biology ...
Third edition xiii, 393 stran : ilustrace, tabulky ; 26 cm
- MeSH
- endodoncie MeSH
- periapikální periodontitida diagnóza prevence a kontrola terapie MeSH
- Publikační typ
- učebnice MeSH
- Konspekt
- Stomatologie
- Učební osnovy. Vyučovací předměty. Učebnice
- NLK Obory
- zubní lékařství
- NLK Publikační typ
- kolektivní monografie
... kazy, fluorid, fluoróza, prevence u starších pacientu Prevention and community dentistry; dental caries ... ... dental practice; the philosophy of prevention; health promotion; barriers to healthy behaviour; dental caries ... ... ; DMFT index; microbiology of dental caries; diet and dental caries; fluoride; fluorosis; prevention ... ... cavity; inflammation and disease processes; causes and prevention of dental disease; case studies; caries ... ... komplikacím -- Operative dentistry; diagnosis of pulpal pain; treatment planning; management of the deep ...
První vydání 448 stran ; 23 cm
- Klíčová slova
- angličtina,
- MeSH
- lingvistika MeSH
- stomatologie MeSH
- Publikační typ
- slovníky MeSH
- učebnice MeSH
- Konspekt
- Stomatologie
- Angličtina
- NLK Obory
- zubní lékařství
- lingvistika, lékařská terminologie
... confidentiality; consent 1 -- Vocabulary 1 24 -- Unit 2 -- Prevention and community dentistry; dental caries ... ... dental practice; the philosophy of prevention; health promotion; barriers to healthy behaviour; dental caries ... ... ; DMFT index; microbiology of dental caries; diet and dental caries; fluoride; fluorosis; prevention ... ... cavity; inflammation and disease processes; causes and prevention of dental disease; case studies; caries ... ... -- Unit 15 -- Operative dentistry; diagnosis of pulpal pain; treatment planning; management of the deep ...
552 stran ; 23 cm
- Klíčová slova
- angličtina,
- MeSH
- terminologie jako téma MeSH
- zubní lékařství MeSH
- Publikační typ
- příručky MeSH
- Konspekt
- Stomatologie
- Učební osnovy. Vyučovací předměty. Učebnice
- NLK Obory
- zubní lékařství
- lingvistika, lékařská terminologie
- NLK Publikační typ
- učebnice vysokých škol
... Cary Engleberg -- VOLUME 2 ill Infectious Diseases and Their Etiologic Agents -- A Viral Diseases -- ... ... Deepe, Jr. 266 Blastomycosis 2963 -- Robert W. ...
8th ed. 2 sv. : il., tab. ; 28 cm
- Konspekt
- Patologie. Klinická medicína
- NLK Obory
- infekční lékařství
- NLK Publikační typ
- kolektivní monografie
- učebnice vysokých škol