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Dento Maxillo Facial Radiology

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https://www.readbyqxmd.com/read/29319336/operator-safety-during-the-acquisition-of-intraoral-images-with-a-handheld-and-portable-x-ray-device
#1
Dennis Rottke, Lisa Gohlke, Robert Schrödel, Stefan Hassfeld, Dirk Schulze
OBJECTIVES: The present study aims at investigating different radiation protection issues and dose values while acquiring intraoral images with a handheld X-ray device. METHODS: An Aribex NOMAD Pro 2TM, a RANDO® male head phantom, a consistency testing body (CTB), a PTW NOMEX® Multimeter, and a PTW Farmer® Ionization Chamber Type 30010 were used to investigate: (1) dose area products (DAP); (2) the expansion of the control area (CA); (3) the scattering pattern; and (4) the potential risk for operators of the X-ray device...
January 10, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29303367/radiation-dose-from-x-ray-examinations-of-impacted-canines-cone-beam-computed-tomography-vs-two-dimensional-imaging
#2
Nils Kadesjö, Randi Lynds, Mats Nilsson, Xie-Qi Shi
OBJECTIVES: To compare the radiation dose to children examined for impacted canines, using two-dimensional examinations (panoramic and periapical radiographs) and cone-beam computed tomography (CBCT). METHODS: Organ doses were determined using an anthropomorphic 10-year child phantom. Two CBCT devices, a ProMax3D and a NewTom5G, were examined using thermoluminescent dosimeters. For the panoramic radiograph, a Promax device was used and for periapical radiographs, a Prostyle device with a ProSensor digital sensor was used...
January 5, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29241366/accuracy-of-dental-development-for-estimating-the-pubertal-growth-spurt-in-comparison-to-skeletal-development-a-systematic-review-and-meta-analysis
#3
Marcos Av Bittencourt, Graziela O Cericato, Ademir Franco, Rafaela S Girão, Anderson Pb Lima, Luiz R Paranhos
OBJECTIVES: This study aimed to search for scientific evidence concerning the accuracy of dental development for estimating the pubertal growth spurt. METHODS: It was conducted according to the statements of PRISMA. An electronic search was performed in six databases, including the grey literature. The PICOS strategy was used to define the eligibility criteria and only observational studies were selected. RESULTS: Out of 1,416 identified citations, ten papers fulfilled the criteria and were included in this systematic review...
December 15, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29236521/korean-dentists-perceptions-and-attitudes-regarding-radiation-safety-and-protection
#4
Seo-Young An, Kyung-Min Lee, Jae-Seo Lee
OBJECTIVES: To investigate dentists' perceptions and attitudes regarding radiation safety in dental practices in Korea. METHODS: Two hundred seven dentists participated in this study. An anonymous survey was conducted regarding the following areas: years of practice, characteristics of the radiography equipment, knowledge of diagnostic reference levels, prescription of dental radiographs, use of radiation protection procedures, and participation in the radiation safety program...
December 13, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29231055/effect-of-anatomical-region-on-the-formation-of-metal-artifacts-produced-by-dental-implants-in-cone-beam-computed-tomographic-images
#5
Alessiana Helena Machado, Karolina Aparecida Castilho Fardim, Camila Furtado de Souza, Bruno Salles Sotto-Maior, Neuza Maria Souza Picorelli Assis, Karina Lopes Devito
OBJECTIVES: To quantitatively compare metal artifacts produced by implants in different maxillomandibular regions on cone beam computed tomography (CBCT) images. METHODS: A total of 200 implants selected from CBCT examinations were divided into four groups: Group 1 (n = 50) - implants located in the anterior maxilla; Group 2 (n = 50) - implants located in the posterior maxilla; Group 3 (n = 50) - implants located in the anterior mandible; and Group 4 (n = 50) - implants located in the posterior mandible...
December 12, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29231036/mucoepidermoid-carcinoma-mimicking-a-mucocele-ranula-in-the-floor-of-the-mouth
#6
Saulo L Sousa Melo, Emily Lanzel, Nitin A Pagedar, Daniah Alhazmi, Laila Dahmoush, Bruno A Policeni, Marcia S Campos
Mucoepidermoid carcinoma (MEC) is the most common salivary gland malignancy. The submandibular gland is rarely involved, about less than 10% of all other major salivary glands. We report a case of a 49 year-old female who presented with a mass on the left side of the floor of the mouth. She was complaining of neck pain for the last 2-3 days and had noticed the mass growing in size and becoming tender to palpation. There was no exacerbation of pain during eating, drinking or opening of mouth. A multidetector computed tomography scan was made...
December 12, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29227160/inter-and-intra-examiner-reliability-of-bitewing-radiography-and-near-infrared-light-transillumination-for-proximal-caries-detection-and-assessment
#7
Friederike Litzenburger, Katrin Heck, Vinay Pitchika, Klaus W Neuhaus, Fabian N Jost, Reinhard Hickel, Anahita Jablonski-Momeni, Alexander Welk, Alexander Lederer, Jan Kühnisch
OBJECTIVES: The purpose of this in vitro study was to evaluate the inter- and intra-examiner reliability of digital bitewing (DBW) radiography and near-infrared light transillumination (NIRT) for proximal caries detection and assessment in posterior teeth. METHODS: From a pool of 85 patients, 100 corresponding pairs of DBW and NIRT images (~1/3 healthy, ~1/3 with enamel caries and ~1/3 with dentin caries) were chosen. Twelve dentists with different professional statuses and clinical experience repeated the evaluation in two blinded cycles...
December 11, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29227154/pose-determination-of-a-blade-implant-in-three-dimensions-from-a-single-two-dimensional-radiograph
#8
Toti Paolo, Barone Antonio, Marconcini Simone, Menchini-Fabris Giovanni Battista, Martuscelli Ranieri, Covani Ugo
OBJECTIVES: The aim of the study was to introduce a mathematical method to estimate the correct pose of a blade by evaluating the radiographic features obtained from a single two-dimensional image. METHODS: Blade-form implant bed preparation was performed using the piezosurgery device, and placement was attained with the use of magnetic mallet. The pose determination of the blade was described by means of three consecutive rotations defined by three angles of orientation (triplet φ, θ and Ψ)...
December 11, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29168936/does-cbct-alter-the-diagnostic-thinking-efficacy-management-and-prognosis-of-patients-with-suspected-stage-0-medication-related-osteonecrosis-of-the-jaws
#9
Hiroaki Shimamoto, Tristan R Grogan, Tomomi Tsujimoto, Naoya Kakimoto, Shumei Murakami, David Elashoff, Tara L Aghaloo, Sotirios Tetradis
OBJECTIVES: To evaluate the impact of CBCT in the diagnostic thinking efficacy, management and prognosis of patients with suspected stage 0 medication-related osteonecrosis of the jaw (MRONJ). METHODS: For 15 patients with suspected stage 0 MRONJ, clinical photographs, a panoramic radiograph and selected CBCT sections were identified. 13 oral surgeons reviewed the material and answered 10 questions in two different sessions. First session included clinical photographs and panoramic radiographs, while second session also included CBCT images...
November 23, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29168926/three-dimensional-imaging-of-soft-and-hard-facial-tissues-in-patients-with-craniofacial-syndromes-a-systematic-review-of-methodological-quality
#10
Arianne Lewyllie, Maria Cadenas De Llano-Pérula, Anna Verdonck, Guy Willems
OBJECTIVES: To systematically review the xmethodological quality of three-dimensional (3D) imaging studies of patients with craniofacial syndromes and to propose recommendations for future research. METHODS: PubMed, Embase and Cochrane databases as well as Grey literature were electronically searched. Inclusion criteria were patients with genetic syndromes with craniofacial manifestations and 3D imaging of facial soft and/or hard tissues. Exclusion criteria consisted of non-syndromic conditions or conditions due to environmental causes, injury or trauma, facial soft and hard tissues not included in the image analysis, case reports, reviews, opinion articles...
November 23, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29168920/a-case-report-of-open-craniofacial-sutures-a-novel-feature-of-systemic-sclerosis
#11
Patricia Gorecki, John Rout
Scleroderma is an uncommon connective-tissue disease, its key feature being excessive collagen deposition resulting in fibrosis of the skin and internal organs. There are different types that can vary in severity from localized scleroderma to systemic sclerosis. Various clinical and radiographic findings can be attributed to the disease, which arise due to the progressive nature of microvascular changes and collagen deposition. These include limited mouth opening, xerostomia, periodontal disease and cardiac and pulmonary disease...
November 23, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29161909/dimitra-pediatric-skull-phantoms-development-of-age-specific-pediatric-models-for-dentomaxillofacial-radiology-research
#12
Anne Caroline Oenning, Benjamin Salmon, Karla de Faria Vasconcelos, Laura Nicolielo, Ivo Lambrichts, Gerard Sanderink, Ruben Pauwels, Reinhilde Jacobs
OBJECTIVES: This report aims to describe the development of age-specific phantoms for use in pediatric dentomaxillofacial radiology research. These phantoms are denoted DIMITRA pediatric skull phantoms as these have been primarily developed and validated for the DIMITRA European research project (Dentomaxillofacial paediatric imaging: an investigation towards low dose radiation induced risks). METHODS: To create the DIMITRA pediatric phantoms, six human pediatric skulls with estimated ages ranging between 4 - 10 years old were selected, protected with non-radiopaque tape and immersed in melted Mix-D soft tissue equivalent material, by means of a careful procedure (layer-by- layer)...
November 21, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29161903/spatial-resolution-measurements-using-radia-diagnostic-software-with-sedentexct-image-quality-phantom-in-cone-beam-ct-for-dental-use
#13
Hiroshi Watanabe, Yoshikazu Nomura, Ami Kuribayashi, Tohru Kurabayashi
OBJECTIVES: We aimed to employ the Radia diagnostic software with the Safety and Efficacy of a New Emerging Dental X-ray Modality (SEDENTEXCT) image quality (IQ) phantom in computed tomography (CT), and to evaluate its validity. METHODS: The SEDENTEXCT IQ phantom and Radia diagnostic software were employed. The phantom was scanned using one medical full-body CT and two dento-maxillo-facial cone beam CTs. The obtained images were imported to the Radia software, and the spatial resolution outputs were evaluated...
November 21, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29106310/comparison-of-microtomography-and-optical-coherence-tomography-on-apical-endodontic-filling-analysis
#14
Fernanda Clotilde Mariz Suassuna, Ana Marly Araújo Maia, Daniela Pita Melo, Antônio Celso Dantas Antonino, Anderson Stevens Leônidas Gomes, Patrícia Meira Bento
OBJECTIVES: To comparein vitro differences in the apical filling regarding working length (WL) change and presence of voids and to validate optical coherence tomography (OCT) in comparison with computerized microtomography (µCT) for the detection of failures in the apical filling. METHODS: Forty-five uniradicular teeth with round canals, divided into groups (n = 15) following the obturation protocols: LC (lateral condensation), TMC (thermomechanical compaction) and SC (single cone)...
November 16, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28959890/determination-of-the-palatal-masticatory-mucosa-thickness-by-dental-mri-a-prospective-study-analysing-age-and-gender-effects
#15
Alexander Heil, Franz Sebastian Schwindling, Constanze Jelinek, Manuel Fischer, Marcel Prager, Eduardo Lazo Gonzalez, Martin Bendszus, Sabine Heiland, Tim Hilgenfeld
OBJECTIVES: The aim of this prospective study was to evaluate age and gender effects on the palatal masticatory mucosa thickness by using non-invasive and non-ionizing MRI. METHODS: 40 periodontally healthy participants of five gender-balanced age groups (20-29, 30-39, 40-49, 50-59 and 60-69 years, respectively) underwent dental MRI at 3 Tesla using a contrast-enhanced, high-resolution 3D-sequence. The palatal masticatory mucosa was measured at 40 standard measurement points by two independent observers...
November 3, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29091472/evidence-of-genotoxicity-and-cytotoxicity-of-x-rays-in-the-oral-mucosa-epithelium-of-adults-subjected-to-cone-beam-computed-tomography
#16
Juliana Bm da Fonte, Tais M de Andrade, Ricardo Lc Albuquerque-Júnior, Maria de Fátima B de Melo, Wilton M Takeshita
OBJECTIVES: To assess cytological evidence of genotoxicity and cytotoxicity of X-rays in oral exfoliated cells of adults subjected to partial and total CBCT (stitching module) by means of micronuclei frequency, associated with counting of degenerative nuclear alterations (pyknosis, karyolysis, karyorrhexis, buds and broken eggs), besides comparing the partial and total CBCT (stitching module) in search of possible differences in the nature and/or intensity of the effects. METHODS: Twenty-nine adults who were referred to total or partial CBCT were selected...
November 1, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28991500/age-estimation-based-on-pulp-tooth-volume-ratio-measured-on-cone-beam-ct-images
#17
Ayse Gulsahi, Cemal Kivanc Kulah, Batuhan Bakirarar, Orhan Gulen, Kivanc Kamburoglu
OBJECTIVES: After tooth eruption, the size of the pulp cavity decreases with age owing to deposition of secondary dentine. The aim of this study was to investigate the relation between the chronological age and the ratio of pulp volume (PV) to tooth volume (TV) measurements using CBCT images of single rooted teeth. METHODS: Maxillary anterior, canine and mandibular canine/premolar CBCT scans of patients older than 15 years of age were collected from the archives between 2013 and 2015 years...
November 1, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28937285/assessment-of-automatic-segmentation-of-teeth-using-a-watershed-based-method
#18
Antoine Galibourg, Jean Dumoncel, Norbert Telmon, Adèle Calvet, Jérôme Michetti, Delphine Maret
OBJECTIVE: Tooth 3D automatic segmentation (AS) is being actively developed in research and clinical fields. Here, we assess the effect of automatic segmentation using a watershed-based method on the accuracy and reproducibility of 3D reconstructions in volumetric measurements by comparing it with a semi-automatic segmentation(SAS) method that has already been validated. METHODS: The study sample comprised 52 teeth, scanned with micro-CT (41 µm voxel size) and CBCT (76; 200 and 300 µm voxel size)...
November 1, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28871830/comparison-of-panoramic-radiography-and-cone-beam-ct-in-the-assessment-of-juxta-apical-radiolucency
#19
Eduarda Helena Leandro Nascimento, Anne Caroline Costa Oenning, Bernardo Barbosa Freire, Hugo Gaêta-Araujo, Francisco Haiter-Neto, Deborah Queiroz Freitas
OBJECTIVES: To compare the performance of panoramic radiography (PAN) and cone beam CT (CBCT) in the detection of juxta-apical radiolucency (JAR), as well as to investigate, in CBCT images, if there are factors associated with the detection of JAR on PAN. METHODS: Two oral radiologists assessed the presence of JAR in PAN and CBCT images of 175 individuals (308 mandibular third molars). The cortical plates involvement and the JAR size and location were assessed on CBCT to evaluate if these factors were related to JAR detection on PAN...
November 1, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28871814/osseous-changes-in-patients-with-medication-related-osteonecrosis-of-the-jaws
#20
Zeynep Burcin Gönen, Canay Yillmaz Asan, Gökmen Zararsiz, Erdem Kiliç, Alper Alkan
OBJECTIVES: Medication-related osteonecrosis of the jaw (MRONJ) is a severe side effect of antiresorptive agents. The aim of this study was to investigate the osseous changes in patients with MRONJ. METHODS: Cone beam CT (CBCT) images of 25 patients with MRONJ and controls were retrospectively evaluated. Buccal, lingual, apical cortical bone thicknesses; buccal, lingual, apical intracortical and cancellous bone density; diameter of mental foramen and incisive canal, and width of mental foramen were measured...
November 1, 2017: Dento Maxillo Facial Radiology
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