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Imaging Science in Dentistry

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https://read.qxmd.com/read/30607356/the-need-for-dicom-encapsulation-of-3d-scanning-stl-data
#1
Jae Joon Hwang, Yun-Hoa Jung, Bong-Hae Cho
No abstract text is available yet for this article.
December 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30607355/applications-of-digital-subtraction-angiography-in-the-management-of-penetrating-injuries-of-the-maxillofacial-region-a-case-report
#2
Vitor José Fonseca, Roberta Rayra Martins Chaves, Felipe Eduardo Baires Campos, Luiz Felipe Lehman, Gustavo Meyer Moraes, Wagner Henriques Castro
This report presents a clinical case of trauma due to assault with a knife, and describes the importance of using the correct imaging modality in cases of facial penetrating trauma involving the superficial and deep anatomical planes. Penetrating wounds in the maxillofacial region are rare and poorly reported, but can result in serious complications that are difficult to resolve and may compromise the patient's quality of life, especially when large blood vessels or other vital structures are involved. Thus, it is essential to determine the extent of the affected blood vessels and the proximity of the retained object to the anatomical structures...
December 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30607354/giant-complex-odontoma-in-the-posterior-mandible-a-case-report-and-literature-review
#3
Jong Chan Park, Ji Ho Yang, Sung Youn Jo, Bong Chul Kim, Jun Lee, Wan Lee
Odontomas are considered a type of odontogenic hamartoma, and are generally reported not to exceed 3 cm in diameter. Some authors have referred to odontomas with a diameter exceeding 3 cm as giant odontomas. As hamartomas, giant odontomas generally show no signs or symptoms, but if they perforate the mucosa to become exposed in the oral cavity, oral and maxillofacial infections can result. Surgical removal and a histopathological examination may also be required to differentiate them from osteomas, cemento-osseous dysplasia, or mixed odontogenic tumors...
December 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30607353/craniometaphyseal-dysplasia-report-of-2-cases-with-an-emphasis-on-panoramic-imaging-features
#4
Han-Gyeol Yeom
Craniometaphyseal dysplasia (CMD) is a rare hereditary disorder characterized by hyperostosis of the craniofacial bones and flared metaphyses of the long bones. Although some reports have described the dentomaxillofacial characteristics of CMD, including increased density of the jaw, malocclusion, and delayed eruption of the permanent teeth, only a few studies have reported the distinct imaging features of CMD on panoramic radiography. This report presents 2 cases of confirmed CMD patients with an emphasis on panoramic imaging features...
December 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30607352/evaluation-of-the-relationship-between-sleep-bruxism-and-pulpal-calcifications-in-young-women-a-clinico-radiological-study
#5
Melek Tassoker
Purpose: This study was performed to investigate the relationship between sleep bruxism (SB) and pulpal calcifications in young women. Materials and Methods: A total of 100 female participants between 20 and 31 years of age who were referred to our radiology clinic for a dental check-up, including 59 SB and 41 non-SB patients, were sampled for the analysis. SB was diagnosed based on the American Academy of Sleep Medicine criteria. All teeth were evaluated on digital panoramic radiographs to detect pulpal calcifications, except third molars, teeth with root canal treatment, and teeth with root resorption...
December 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30607351/comparing-the-precision-of-panoramic-radiography-and-cone-beam-computed-tomography-in-avoiding-anatomical-structures-critical-to-dental-implant-surgery-a-retrospective-study
#6
Öznur Özalp, Hüseyin Alican Tezerişener, Burak Kocabalkan, Ulviye Şebnem Büyükkaplan, Mehmet Mustafa Özarslan, Göksel Şimşek Kaya, Mehmet Ali Altay, Alper Sindel
Purpose: The aim of this study was to evaluate the correlations between measurements made using panoramic radiography and cone-beam computed tomography (CBCT) based on certain anatomical landmarks of the jaws, with the goal of preventing complications due to inaccurate measurements in the pre-surgical planning phase of dental implant placement. Materials and Methods: A total of 56 individuals who underwent panoramic radiography and a CBCT evaluation before dental implant surgery were enrolled in the study...
December 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30607350/image-quality-assessment-of-pre-processed-and-post-processed-digital-panoramic-radiographs-in-paediatric-patients-with-mixed-dentition
#7
Isti Rahayu Suryani, Natalia Salvo Villegas, Sohaib Shujaat, Annelore De Grauwe, Azhari Azhari, Suhardjo Sitam, Reinhilde Jacobs
Purpose: To determine the impact of an image processing technique on diagnostic accuracy of digital panoramic radiographs for the assessment of anatomical structures in paediatric patients with mixed dentition. Materials and Methods: The study consisted of 50 digital panoramic radiographs of children aged from 6 to 12 years, which were later on processed using a dedicated image processing method. A modified clinical image quality evaluation chart was used to evaluate the diagnostic accuracy of anatomical structures in maxillary and mandibular anterior and maxillary premolar region of processed images...
December 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30607349/development-of-a-new-ball-type-phantom-for-evaluation-of-the-image-layer-of-panoramic-radiography
#8
Han-Gyeol Yeom, Jo-Eun Kim, Kyung-Hoe Huh, Won-Jin Yi, Min-Suk Heo, Sam-Sun Lee, Soon-Chul Choi
Purpose: This study proposes a new ball-type phantom for evaluation of the image layer of panoramic radiography. Materials and Methods: The arch shape of an acrylic resin phantom was derived from average data on the lower dental arch in Korean adult males. Metal balls with a 2-mm diameter were placed along the center line of the phantom at a 4-mm mesiodistal interval. Additional metal balls were placed along the 22 arch-shaped lines that ran parallel to the center line at 2-mm buccolingual intervals...
December 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30607348/effect-of-object-position-in-the-field-of-view-and-application-of-a-metal-artifact-reduction-algorithm-on-the-detection-of-vertical-root-fractures-on-cone-beam-computed-tomography-scans-an-in-vitro-study
#9
Ava Nikbin, Zahra Dalili Kajan, Mehran Taramsari, Negar Khosravifard
Purpose: To assess the effects of object position in the field of view (FOV) and application of a metal artifact reduction (MAR) algorithm on the diagnostic accuracy of cone-beam computed tomography (CBCT) for the detection of vertical root fractures (VRFs). Materials and Methods: Sixty human single-canal premolars received root canal treatment. VRFs were induced in 30 endodontically treated teeth. The teeth were then divided into 4 groups, with 2 groups receiving metal posts and the remaining 2 only having an empty post space...
December 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30607347/oral-carcinoma-cuniculatum-an-unacquainted-variant-of-oral-squamous-cell-carcinoma-a-systematic-review
#10
REVIEW
Amina Fouad Farag, Dalia Ali Abou-Alnour, Noha Saleh Abu-Taleb
Purpose: Oral carcinoma cuniculatum is a rare well-differentiated variant of oral squamous cell carcinoma. The purpose was to systematically review its unique features to differentiate it from other variants as verrucous carcinoma, papillary squamous cell carcinoma and well-differentiated squamous cell carcinoma. Materials and Methods: A systematic review was performed using MEDLINE, Dentistry and Oral Sciences Source and PubMed databases and any existing articles related to the research subject missed in the search strategy to screen ones reporting cases occurring exclusively in the oral cavity in English literature...
December 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30276160/radiographic-study-of-dermal-fillers-in-the-facial-area-a-series-of-3-cases
#11
Young-Eun Kwon, Chang-Hyeon An, Karp-Shik Choi, Du-Hyeong Lee, Seo-Young An
In recent years, as interest in maintaining beauty and a youthful appearance has grown, filler procedures such as soft tissue augmentation have become more popular. These fillers are sometimes seen as radiopaque shadows on radiographic images, either due to the fillers themselves or because of secondary reactions; such findings may present a diagnostic challenge to dentists. The present report describes 3 cases of dermal fillers observed in panoramic and cone-beam computed tomographic (CBCT) images. All 3 elderly female patients had filler injected into their cheeks and chin area for cosmetic purposes decades ago...
September 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30276159/multiple-intraosseous-cervical-pneumatocysts-a-case-report-of-a-rare-incidental-finding-on-cone-beam-computed-tomography
#12
Aniket B Jadhav, Sangeetha Gajendran Sarah, Robert Cederberg, Aditya Wagh, Sudarat Kiat-Amnuay
This report presents a case of cervical pneumatocysts as an incidental finding on cone-beam computed tomography. Pneumatocysts are gas-containing lesions of unknown etiology. They usually present in the ilium or sacrum, adjacent to the sacroiliac joint. In the literature, 21 case reports have described cervical pneumatocysts. Cervical pneumatocysts should be differentiated from other lesions, such as osteomyelitis, osteonecrosis, and neoplasms, as well as post-traumatic and post-surgical cases. Computed tomography, cone-beam computed tomography, and magnetic resonance imaging are appropriate tools to diagnose cervical pneumatocysts...
September 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30276158/the-relationship-between-masseter-muscle-thickness-measured-by-ultrasonography-and-facial-profile-in-young-korean-adults
#13
Kyeong-Mee Park, Eunhye Choi, Eun-Jung Kwak, Seoyul Kim, Wonse Park, Jin-Sun Jeong, Kee-Deog Kim
Purpose: The purpose of this study was to evaluate the relationship between masseter muscle thickness, facial morphology, and mandibular morphology in Korean adults using ultrasonography. Materials and Methods: Ultrasonography was used to measure the masseter muscle thickness bilaterally of 40 adults (20 males, 20 females) and was performed in the relaxed and contracted states. Facial photos and panoramic radiography were used for morphological analyses and evaluated for correlations with masseter muscle thickness...
September 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30276157/a-comparative-study-of-cone-beam-computed-tomography-and-digital-panoramic-radiography-for-detecting-pulp-stones
#14
Melek Tassoker, Guldane Magat, Sevgi Sener
Purpose: The aim of this study was to compare cone-beam computed tomography (CBCT) and digital panoramic radiography (DPR) for the detection of pulp stones. Materials and Methods: DPR and CBCT images of 202 patients were randomly selected from the database of our department. All teeth were evaluated in sagittal, axial, and coronal sections in CBCT images. The systemic condition of patients, the presence of pulp stones, the location of the tooth, the group of teeth, and the presence and depth of caries and restorations were recorded...
September 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30276156/a-novel-classification-of-anterior-alveolar-arch-forms-and-alveolar-bone-thickness-a-cone-beam-computed-tomography-study
#15
Atcharee Bulyalert, Atiphan Pimkhaokham
Purpose: This study classified alveolar arch forms and evaluated differences in alveolar bone thickness among arch forms in the anterior esthetic region using cone-beam computed tomography (CBCT) images. Materials and Methods: Axial views of 113 CBCT images were assessed at the level of 3 mm below the cementoenamel junction (CEJ) of the right and left canines. The root center points of teeth in the anterior esthetic region were used as reference points. Arch forms were classified according to their transverse dimensions and the intercanine width-to-depth ratio...
September 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30276155/location-and-shape-of-the-mandibular-lingula-comparison-of-skeletal-class-i-and-class-iii-patients-using-panoramic-radiography-and-cone-beam-computed-tomography
#16
Yun-Hoa Jung, Bong-Hae Cho, Jae Joon Hwang
Purpose: The aim of this study was to compare the location and the shape of the mandibular lingula in skeletal class I and III patients using panoramic radiography and cone-beam computed tomography. Materials and Methods: The sample group included 190 skeletal class I patients and 157 class III patients. The location of the lingula in relation to the deepest point of the coronoid notch was classified into 3 types using panoramic radiographs. The shapes of the lingulae were classified into nodular, triangular, truncated, or assimilated types using cone-beam computed tomographic images...
September 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30276154/influence-of-voxel-size-on-cone-beam-computed-tomography-based-detection-of-vertical-root-fractures-in-the-presence-of-intracanal-metallic-posts
#17
Fernanda Paula Yamamoto-Silva, Claudeir Felipe de Oliveira Siqueira, Maria Alves Garcia Santos Silva, Rodrigo Borges Fonseca, Ananda Amaral Santos, Carlos Estrela, Brunno Santos de Freitas Silva
Purpose: This study was performed to evaluate the influence of voxel size and the accuracy of 2 cone-beam computed tomography (CBCT) systems in the detection of vertical root fracture (VRF) in the presence of intracanal metallic posts. Materials and Methods: Thirty uniradicular extracted human teeth were selected and randomly divided into 2 groups (VRF group, n=15; and control group, n=15). The VRFs were induced by an Instron machine, and metallic posts were placed in both groups...
September 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30276153/application-of-portable-digital-radiography-for-dental-investigations-of-ancient-egyptian-mummies-during-archaeological-excavations-evaluation-and-discussion-of-the-advantages-and-limitations-of-different-approaches-and-projections
#18
Roger Seiler, Patrick Eppenberger, Frank Rühli
Purpose: In the age of X-ray computed tomography (CT) and digital volume tomography (DVT), with their outstanding post-processing capabilities, indications for planar radiography for the study of the dentition of ancient Egyptian mummies may easily be overlooked. In this article, the advantages and limitations of different approaches and projections are discussed for planar oral and maxillofacial radiography using portable digital X-ray equipment during archaeological excavations. Furthermore, recommendations are provided regarding projections and sample positioning in this context...
September 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30276152/usefulness-of-shear-wave-elastography-in-the-diagnosis-of-oral-and-maxillofacial-diseases
#19
Ichiro Ogura, Ken Nakahara, Yoshihiko Sasaki, Mikiko Sue, Takaaki Oda
Purpose: To evaluate the usefulness of shear wave elastography in the diagnosis of oral and maxillofacial diseases. Materials and Methods: Ten patients with oral and maxillofacial diseases and 28 volunteers drawn from our student doctors were examined by shear wave elastography with a 14-MHz linear transducer using an Aplio 300 apparatus (Canon Medical Systems, Otawara, Japan). A statistical analysis of the shear elastic modulus (kPa) of healthy tissue (the sublingual gland, submandibular gland, anterior belly of the digastric muscle, and geniohyoid muscle) in the 28 volunteers was performed using 1-way repeated measures analysis of variance with the Tukey honest significant difference test...
September 2018: Imaging Science in Dentistry
https://read.qxmd.com/read/30276151/the-efficacy-of-ultrasonography-in-monitoring-the-healing-of-jaw-lesions
#20
Obai Zainedeen, Iyad Al Haffar, Nabil Kochaji, George Wassouf
Purpose: This study aimed to assess the reliability of ultrasonography (US) in comparison with cone-beam computed tomography (CBCT) as a tool for monitoring the healing of jaw lesions. Materials and Methods: Twenty-one radiolucent lesions in jaws referred to the Oral Surgery Department at our institution were selected for this study. All lesions underwent CBCT and US examinations. The anteroposterior, superoinferior, and mesiodistal dimensions of the lesions were measured on CBCT and US images before surgery and at 6 months after surgery...
September 2018: Imaging Science in Dentistry
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