journal
https://read.qxmd.com/read/38047985/dental-bitewing-radiographs-segmentation-using-deep-learning-based-convolutional-neural-network-algorithms
#1
JOURNAL ARTICLE
Talal Bonny, Abdelaziz Al-Ali, Mohammed Al-Ali, Rashid Alsaadi, Wafaa Al Nassan, Khaled Obaideen, Maryam AlMallahi
OBJECTIVES: Dental radiographs, particularly bitewing radiographs, are widely used in dental diagnosis and treatment Dental image segmentation is difficult for various reasons, such as intricate structures, low contrast, noise, roughness, and unclear borders, resulting in poor image quality. Recent developments in deep learning models have improved performance in analyzing dental images. In this research, our primary objective is to determine the most effective segmentation technique for bitewing radiographs based on different metrics: accuracy, training time, and the number of training parameters as a reflection of architectural cost...
December 4, 2023: Oral Radiology
https://read.qxmd.com/read/38032399/submandibular-gland-carcinoma-ex-pleomorphic-adenoma-with-calcification
#2
JOURNAL ARTICLE
Tomoko Shiraishi, Toru Chikui, Shoko Yoshida, Kazuhiko Okamura, Kenichiro Hashimoto, Tomoko Fukui, Toyohiro Kagawa
We report an unusual case of carcinoma ex pleomorphic adenoma (CXPA) in the submandibular gland. The mass had a unique calcification. Panoramic tomography revealed sponge-like calcification. The central portion displayed heterogeneous high signal intensity on T1-weighted image (T1WI) and T2-weighted image (T2WI), and heterogeneously moderate signal intensity on a short-TI inversion recovery (STIR) image. The ADC was low (0.78 × 10-3 mm2 /sec). After surgical excision, a pathological examination revealed that the mass contained CXPA as a minor component...
November 30, 2023: Oral Radiology
https://read.qxmd.com/read/38010496/evaluation-of-morphological-and-morphometric-characteristics-of-the-temporomandibular-joint-in-children-with-different-skeletal-models-in-the-sagittal-and-vertical-direction
#3
JOURNAL ARTICLE
Sinem Sırlı Yılmazturk, Esin Bozdemir, Kaan Orhan, Hikmet Orhan
OBJECTIVE: This study aims to evaluate differences in the morphological and morphometric features of hard tissue components of the temporomandibular joint (TMJ) in the cone beam computed tomography (CBCT) images of children with different skeletal models in the sagittal and vertical plane. METHODS: Condyle dimensions, horizontal condylar angle, the distance of the condyle center to the midsagittal plane, condyle position, eminence height, eminence inclination, condyle, and fossa shape and symmetry were evaluated in CBCT images in 190 TMJs in 95 pediatric patients...
November 27, 2023: Oral Radiology
https://read.qxmd.com/read/38001347/generative-adversarial-networks-in-dental-imaging-a-systematic-review
#4
REVIEW
Sujin Yang, Kee-Deog Kim, Eiichiro Ariji, Yoshitaka Kise
OBJECTIVES: This systematic review on generative adversarial network (GAN) architectures for dental image analysis provides a comprehensive overview to readers regarding current GAN trends in dental imagery and potential future applications. METHODS: Electronic databases (PubMed/MEDLINE, Scopus, Embase, and Cochrane Library) were searched to identify studies involving GANs for dental image analysis. Eighteen full-text articles describing the applications of GANs in dental imagery were reviewed...
November 24, 2023: Oral Radiology
https://read.qxmd.com/read/37855976/deep-learning-for-diagnosis-of-head-and-neck-cancers-through-radiographic-data-a-systematic-review-and-meta-analysis
#5
REVIEW
Rata Rokhshad, Seyyede Niloufar Salehi, Amirmohammad Yavari, Parnian Shobeiri, Mahdieh Esmaeili, Nisha Manila, Saeed Reza Motamedian, Hossein Mohammad-Rahimi
PURPOSE: This study aims to review deep learning applications for detecting head and neck cancer (HNC) using magnetic resonance imaging (MRI) and radiographic data. METHODS: Through January 2023, a PubMed, Scopus, Embase, Google Scholar, IEEE, and arXiv search were carried out. The inclusion criteria were implementing head and neck medical images (computed tomography (CT), positron emission tomography (PET), MRI, Planar scans, and panoramic X-ray) of human subjects with segmentation, object detection, and classification deep learning models for head and neck cancers...
October 19, 2023: Oral Radiology
https://read.qxmd.com/read/37831428/retrospective-analysis-of-tooth-extraction-and-osteoradionecrosis-after-low-dose-rate-brachytherapy-for-patients-with-tongue-cancer
#6
JOURNAL ARTICLE
Masaru Konishi, Kiichi Shimabukuro, Naoya Kakimoto
OBJECTIVES: This study aimed to investigate the incidence of osteonecrosis of the jawbones (ORN) after tooth extraction in patients undergoing low-dose rate brachytherapy (LDR-BT) and assess its safety. METHODS: This study retrospectively analyzed 145 patients with tongue cancer treated at Hiroshima University Hospital from 2007 to 2021 with LDR-BT using 192Ir or 198Au alone, LDR-BT and external beam radiotherapy (EBRT) with or without chemotherapy, and LDR-BT with chemotherapy...
October 13, 2023: Oral Radiology
https://read.qxmd.com/read/37773481/comparison-of-mandibular-buccal-shelf-morphology-between-adolescents-and-adults-with-different-vertical-patterns-using-cbct
#7
JOURNAL ARTICLE
Xiaoxu Fang, Hong Ding, Cunhui Fan, Lei Pang, Tao Xu, Jialin Liu, Chunmiao Jiang
OBJECTIVE: This retrospective study aimed to analyze the anatomical structure of the mandibular buccal shelf (MBS) in adolescents and adults with different vertical patterns to determine the optimal location for miniscrew insertion in orthodontic treatment. METHODS: Cone-beam computed tomography (CBCT) scans of 230 patients were utilized for measurements. The morphology and thickness of alveolar bone at the MBS were measured. Two-way ANOVA and regression analysis were conducted to analyze the influencing factors on alveolar bone and cortical bone thickness...
September 29, 2023: Oral Radiology
https://read.qxmd.com/read/37749336/evaluation-of-the-relationship-between-sphenoid-sinus-morphology-and-area-and-volume-by-computed-tomography
#8
JOURNAL ARTICLE
Mehmet Serindere, Ceren Aktuna Belgin
OBJECTIVES: The aim of this study is to investigate the effect of sphenoid sinus pneumatization types, Onodi cell (OC), internal carotid artery (ICA), optic nerve (ON) on sinus volume and area on computed tomography (CT) images. METHODS: The CT images of 150 patients were evaluated. Sphenoid sinus pneumatization types, OC prevalence, protrusion and dehiscence of ICA and ON, the volume and area were evaluated. RESULTS: The sinus volume and area were statistically higher in patients with bilateral protrusion of ICA and ON then patients without protrusion of ICA and ON...
September 25, 2023: Oral Radiology
https://read.qxmd.com/read/37733163/dental-radiographic-changes-in-individuals-with-covid-19-a-controlled-retrospective-study
#9
JOURNAL ARTICLE
Meryem Kaygısız Yiğit, Rıdvan Akyol, Beyza Yalvaç, Meryem Etöz
OBJECTIVE: The aim of this study is to compare the pre-COVID-19 and post-COVID-19 dental radiological findings of individuals with positive rRT-PCR test results and with healthy controls using the apical periodontitis grade scale (APGS), radiographic-based periodontal bone loss (R-PBL), and radiographic DMFT indices, and to investigate the relatively long-term dental effects of COVID-19. METHODS: This study included people who had two panoramic radiographs taken between 2018 and 2022...
September 21, 2023: Oral Radiology
https://read.qxmd.com/read/37731030/a-case-of-radicular-cyst-on-deciduous-tooth-in-a-7-year-old-child
#10
JOURNAL ARTICLE
Takaaki Oda, Masanori Takada, Junya Ono, Yoriaki Kanri, Yasuo Okada, Ichiro Ogura
Radicular cysts are the most common cystic lesions in the oral cavity, and have a rare occurrence in the primary dentition. We report a case of radicular cyst of mandible in child by multimodal imaging including panoramic radiography, CT, and MR imaging. A 7-year-old girl presented with swelling and without pain, and hypoesthesia on the right side of the mandible. On clinical examination, an expansive lesion with undulation was found to the buccal cortex of the right side of the mandible. Panoramic radiograph showed a unilocular radiolucency with well-defined margin, displaced tooth, and root resorption in the right mandible...
September 20, 2023: Oral Radiology
https://read.qxmd.com/read/37725221/a-case-of-odontogenic-keratocyst-in-the-buccal-space-characterization-by-multimodality-imaging-including-computed-tomography-diffusion-weighted-magnetic-resonance-imaging-and-ultrasonography
#11
JOURNAL ARTICLE
Yasuhito Tezuka, Takahiro Oneyama, Yoriaki Kanri, Shuji Toya, Yasuo Okada, Ichiro Ogura
Odontogenic keratocyst (OKC) is a relatively common non-inflammatory jaw lesion. OKC is known to occur most often in the mandibular angle and mandibular ramus, but rarely outside the bone. In this report, we describe characteristic multimodality imaging of OKC in the buccal space, especially diffusion-weighted MR imaging (DWI) with apparent diffusion coefficient (ADC) mapping, extra-oral and intra-oral ultrasonography. On clinical examination, an approximately 20 mm in diameter mass with elastic hardness was found the left side of the buccal area...
September 19, 2023: Oral Radiology
https://read.qxmd.com/read/37659041/correction-patient-safety-incidents-in-dentomaxillofacial-imaging-reported-adverse-events-from-hospital-district-helsinki-and-uusimaa-and-the-city-of-helsinki-during-2012-2017
#12
Marianne Suuronen, Taina Autti, Lasse Lehtonen
No abstract text is available yet for this article.
October 2023: Oral Radiology
https://read.qxmd.com/read/37596499/furcation-area-and-root-proximity-of-molars-as-a-risk-indicator-of-periodontitis-a-cone%C3%A2-beam-computed-tomography-based-study
#13
JOURNAL ARTICLE
Gokce Aykol-Sahin, Belde Arsan
OBJECTIVES: This study assessed the root proximity in molars and the furcation area (FA) in the first root separation point (RSP) using cone‑beam computed tomography (CBCT) and evaluated the association between the furcation area of molars and periodontal status of the patients. METHODS: A total of 264 molar teeth in 66 participants were included in the study. The control group consisted of 110 molar teeth of participants, and 154 molar teeth were included in periodontitis group, which consisted of only stage II and III periodontitis patients...
October 2023: Oral Radiology
https://read.qxmd.com/read/37584816/assessment-of-palatal-mucosal-thickness-and-location-of-the-greater-palatine-foramen-using-cone-beam-computed-tomography-a-retrospective-study
#14
JOURNAL ARTICLE
Bahar Füsun Oduncuoğlu, Hazal Karslioğlu, Ipek Naz Karasu, Mediha Nur Nisanci Yilmaz, Elif Inonu
OBJECTIVES: This study aimed to measure the palatal mucosal thickness and examine the location of the greater palatine foramen using cone-beam computerized tomography (CBCT). METHODS: In this study, cone-beam computed tomography (CBCT) images of the maxillary posterior region of 120 subjects were evaluated. The palatal mucosal thickness (PMT), palatal width and depth, and location of the greater palatine foramen (GPF) were determined on CBCT. The differences in the palatal mucosal thickness according to gender and palatal width/palatal depth were analyzed...
October 2023: Oral Radiology
https://read.qxmd.com/read/37535233/evaluation-of-the-effect-of-sickle-cell-disease-on-the-mandibular-bone-of-children-and-adolescents-by-image-texture-and-radiomorphometric-analysis
#15
JOURNAL ARTICLE
Katibe Tugce Temur, Guldane Magat, Melis Yılmaz, Sevgi Ozcan
OBJECTIVES: Sickle cell disease (SCD) can cause osteoporotic changes in the jaw bones. In this study, it was aimed to evaluate possible bone changes using fractal analysis (FA) and morphometric analyses in dental panoramic radiographs of children and adolescents diagnosed with both homozygous and heterozygous forms of SCD. METHODS: Sixty-five individuals (33 SCD, 32 controls) aged 6-17 years were included in the study. Four separate areas of interest (ROI) were selected for the right and left sides of all panoramic radiographs, and the FA value of the ROIs was calculated...
October 2023: Oral Radiology
https://read.qxmd.com/read/37490186/orofacial-symptoms-suggestive-of-malignant-lesions-and-the-role-of-imaging-literature-review-and-case-presentation
#16
REVIEW
Chieko Sugawara, Akira Takahashi
Among the patients seeking dental treatment, some may present with symptoms that cannot be resolved by dental treatment alone. Patients with orofacial symptoms associated with malignant diseases, which require medical treatment, often visit dental clinics for their initial consultation. Delays in making a definitive diagnosis worsen the patient's prognosis. Therefore, dental clinicians should also be aware of the signs and symptoms associated with malignant diseases. The chief complaints of these patients include numb chin syndrome (NCS), painless swelling of the palate and neck, trismus and temporomandibular disorders, and an enlarged tongue...
October 2023: Oral Radiology
https://read.qxmd.com/read/37634196/correction-assessing-quality-and-quantity-of-cortical-bone-in-childhood-cancer-survivors-using-anthropometric-indices
#17
Kyriaki Seremidi, Anastasia Mitsea, William Papaioannou, Konstantina Petroleka, Sotiria Gizani
No abstract text is available yet for this article.
August 27, 2023: Oral Radiology
https://read.qxmd.com/read/37610653/five-year-change-of-panoramic-radiomorphometric-indices-and-fractal-dimension-values-in-type-2-diabetes-patients
#18
JOURNAL ARTICLE
Numan Dedeoğlu, Gözde Eşer, Duygu Çelik Özen, Oğuzhan Altun
OBJECTIVES: Diabetes mellitus is a chronic disease characterized by dysregulation of glucose metabolism, with characteristic long-term complications accompanied by changes in bone quality. The purpose of this study is to compare the results with a control group by performing radiomorphometric analyses on panoramic radiographs obtained 5 years apart to examine changes in the mandibular bone cortex and microstructures of type 2 diabetes mellitus (T2DM) patients. METHODS: Two panoramic radiographs that were taken 5 years (mean 5...
August 23, 2023: Oral Radiology
https://read.qxmd.com/read/37597068/monte-carlo-simulations-of-organ-and-effective-doses-and-dose-length-product-for-dental-cone-beam-ct
#19
JOURNAL ARTICLE
Shingo Terashima, Junta Sano, Minoru Osanai, Keisuke Toshima, Kentaro Ohuchi, Yoichiro Hosokawa
OBJECTIVES: The use of dental cone-beam CT (CBCT) has increased in recent years. We aimed to calculate the organ and effective doses in dental CBCT using Monte Carlo simulation (MCS) and to correlate the effective dose with the dose-length product (DLP), which is a radiation dose index. METHODS: Organ and effective doses were calculated by MCS using the adult male and female reference phantoms of the International Commission on Radiological Protection publication 110 in a half-rotation scan of the CBCT scanner Veraviewepocs 3Df...
August 19, 2023: Oral Radiology
https://read.qxmd.com/read/37540349/influence-of-cbct-derived-panoramic-curve-variability-in-the-measurements-for-dental-implant-planning
#20
JOURNAL ARTICLE
Cyntia Adames, Hugo Gaêta-Araujo, Ademir Franco, Mariana Quirino Silveira Soares, José Luiz Cintra Junqueira, Anne Caroline Oenning
OBJECTIVE: To investigate whether the curve markings performed prior to panoramic and cross-sectional reconstructions can influence the planning of oral implants. METHODS: Twenty oral radiologists landmarked the reference panoramic curves in 25 CBCT scans of the mandible. Bone height was measured on the resulting cross-sectional slices in the edentulous region of the lower first molar. The following data were recorded: (1) number of landmarks used to build each reference curve; (2) shape of the reference curve (inverted "U", inverted "V" or "horseshoe"); and (3) measurement in the first molar region...
August 4, 2023: Oral Radiology
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