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Imaging Science in Dentistry

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https://www.readbyqxmd.com/read/28361032/radiographic-and-computed-tomography-monitoring-of-a-fractured-needle-fragment-in-the-mandibular-branch
#1
Maria Isabel de Oliveira E Britto Villalobos, Thaisa Cristina Gomes Ferreira Leite, Samila Gonçalves Barra, Daniela Teresa Pinto da Cunha Werneche, Flavio Ricardo Manzi, Claudia Assunção E Alves Cardoso
Some complications can arise with the usage of local anesthesia for dental procedures, including the fracture of needles in the patient. This is a rare incident, usually caused by the patient's sudden movements during anesthetic block. Its complications are not common, but can include pain, trismus, inflammation in the region, difficulty in swallowing, and migration of the object, which is the least common but has the ability to cause more serious damage to the patient. This report describes a case in which, after the fracture of the anesthetic needle used during alveolar nerve block for exodontia of the left mandibular third molar, the fragment moved significantly in the first 2 months, before stabilizing after the third month of radiographic monitoring...
March 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28361031/recurrent-osteochondroma-of-the-mandibular-condyle-a-case-report
#2
Young-Eun Kwon, Karp-Shik Choi, Chang-Hyeon An, So-Young Choi, Jae-Seo Lee, Seo-Young An
A 21-year-old woman presented with facial asymmetry. Crepitus and clicking of the temporomandibular joint were noted. The midline deviated 5.5 mm to the left, and secondary malocclusion was observed. Panoramic and cone-beam computed tomographic images showed an irregular and exophytic bony mass on the anteromedial surface of the right mandibular condyle. A 3-phase bone scan revealed increased tracer uptake on the affected side. The lesion was treated with excision and reshaping under the diagnosis of osteochondroma confirmed by a histopathological examination...
March 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28361030/the-development-of-a-learning-management-system-for-dental-radiology-education-a-technical-report
#3
Hee-Jin Chang, Khanthaly Symkhampha, Kyung-Hoe Huh, Won-Jin Yi, Min-Suk Heo, Sam-Sun Lee, Soon-Chul Choi
PURPOSE: This study was conducted to suggest the development of a learning management system for dental radiology education using the Modular Object-Oriented Dynamic Learning Environment (Moodle). MATERIALS AND METHODS: Moodle is a well-known and verified open-source software-learning management system (OSS-LMS). The Moodle software was installed on a server computer and customized for dental radiology education. The system was implemented for teaching undergraduate students to diagnose dental caries in panoramic images...
March 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28361029/risk-factors-of-osteonecrosis-of-the-jaw-after-tooth-extraction-in-osteoporotic-patients-on-oral-bisphosphonates
#4
Ho-Gul Jeong, Jae Joon Hwang, Jeong-Hee Lee, Young Hyun Kim, Ji Yeon Na, Sang-Sun Han
PURPOSE: The aim of this study was to investigate the incidence of bisphosphonate-related osteonecrosis of the jaw (BRONJ) after tooth extraction in patients with osteoporosis on oral bisphosphonates in Korea and to evaluate local factors affecting the development of BRONJ. MATERIALS AND METHODS: The clinical records of 320 patients who underwent dental extraction while receiving oral bisphosphonates were reviewed. All patients had a healing period of more than 6 months following the extractions...
March 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28361028/prevalence-and-location-of-the-posterior-superior-alveolar-artery-using-cone-beam-computed-tomography
#5
Maryam Tehranchi, Ferial Taleghani, Shahriar Shahab, Arash Nouri
PURPOSE: Insufficient knowledge of the anatomy of the maxillary sinuses prior to sinus graft surgery may lead to perioperative or postoperative complications. This study sought to characterize the position of the posterior superior alveolar artery (PSAA) within the maxillary sinuses using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: A total of 300 patients with edentulous posterior maxillae, including 138 females and 162 males with an age range of 33-86 years, who presented to a radiology clinic between 2013 and 2015 were enrolled in this retrospective cross-sectional study...
March 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28361027/cone-beam-computed-tomography-analysis-of-accessory-maxillary-ostium-and-haller-cells-prevalence-and-clinical-significance
#6
Ibrahim K Ali, Kaustubh Sansare, Freny R Karjodkar, Kavita Vanga, Prashant Salve, Ajinkya M Pawar
PURPOSE: This study aimed to evaluate the prevalence of Haller cells and accessory maxillary ostium (AMO) in cone-beam computed tomography (CBCT) images, and to analyze the relationships among Haller cells, AMO, and maxillary sinusitis. MATERIALS AND METHODS: Volumetric CBCT scans from 201 patients were retrieved from our institution's Digital Imaging and Communications in Medicine archive folder. Two observers evaluated the presence of Haller cells, AMO, and maxillary sinusitis in the CBCT scans...
March 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28361026/cone-beam-computed-tomography-versus-digital-periapical-radiography-in-the-detection-of-artificially-created-periapical-lesions-a-pilot-study-of-the-diagnostic-accuracy-of-endodontists-using-both-techniques
#7
Andrea Fagundes Campello, Lucio Souza Gonçalves, Fábio Ribeiro Guedes, Fábio Vidal Marques
PURPOSE: The aim of this study was to compare the diagnostic accuracy of previously trained endodontists in the detection of artificially created periapical lesions using cone-beam computed tomography (CBCT) and digital periapical radiography (DPR). MATERIALS AND METHODS: An ex vivo model using dry skulls was used, in which simulated apical lesions were created and then progressively enlarged using #1/2, #2, #4, and #6 round burs. A total of 11 teeth were included in the study, and 110 images were obtained with CBCT and with an intraoral digital periapical radiographic sensor (Instrumentarium dental, Tuusula, Finland) initially and after each bur was used...
March 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28361025/detection-of-furcation-involvement-using-periapical-radiography-and-2-cone-beam-computed-tomography-imaging-protocols-with-and-without-a-metallic-post-an-animal-study
#8
Fernanda Cristina Sales Salineiro, Ivan Onone Gialain, Solange Kobayashi-Velasco, Claudio Mendes Pannuti, Marcelo Gusmão Paraiso Cavalcanti
PURPOSE: The purpose of this study was to assess the accuracy, sensitivity, and specificity of the diagnosis of incipient furcation involvement with periapical radiography (PR) and 2 cone-beam computed tomography (CBCT) imaging protocols, and to test metal artifact interference. MATERIALS AND METHODS: Mandibular second molars in 10 macerated pig mandibles were divided into those that showed no furcation involvement and those with lesions in the furcation area. Exams using PR and 2 different CBCT imaging protocols were performed with and without a metallic post...
March 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28361024/intraobserver-and-interobserver-reproducibility-in-linear-measurements-on-axial-images-obtained-by-cone-beam-computed-tomography
#9
Nathália Cristine da Silva, Maurício Barriviera, José Luiz Cintra Junqueira, Francine Kühl Panzarella, Ricardo Raitz
PURPOSE: This study was performed to investigate the intra- and inter-observer variability in linear measurements with axial images obtained by PreXion (PreXion Inc., San Mateo, USA) and i-CAT (Imaging Sciences International, Xoran Technologies Inc., Hatfield, USA) CBCT scanners, with different voxel sizes. MATERIALS AND METHODS: A cylindrical object made from nylon with radiopaque markers (phantom) was scanned by i-CAT and PreXion 3D devices. For each axial image, measurements were taken twice in the horizontal (distance A-B) and vertical (distance C-D) directions, randomly, with a one-week interval between measurements, by four oral radiologists with five years or more experience in the use of these measuring tools...
March 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28361023/pharyngeal-airway-dimensions-in-skeletal-class-ii-a-cephalometric-growth-study
#10
Ozge Uslu-Akcam
PURPOSE: This retrospective study aimed to evaluate the nasopharyngeal and oropharyngeal dimensions of individuals with skeletal class II, division 1 and division 2 patterns during the pre-peak, peak, and post-peak growth periods for comparison with a skeletal class I control group. MATERIALS AND METHODS: Totally 124 lateral cephalograms (47 for skeletal class I; 45 for skeletal class II, division 1; and 32 for skeletal class II, division 2) in pre-peak, peak, and post-peak growth periods were selected from the department archives...
March 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28035310/erratum-to-panoramic-radiographs-underestimate-extensions-of-the-anterior-loop-and-mandibular-incisive-canal
#11
Ana Caroline Ramos de Brito, Yuri Nejaim, Deborah Queiroz de Freitas, Christiano de Oliveira Santos
[This corrects the article on p. 159 in vol. 46, PMID: 27672611.].
December 2016: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28035309/adenoid-cystic-carcinoma-of-the-sublingual-gland-a-case-report
#12
Ji-Young Song
Adenoid cystic carcinoma (ACC) of the sublingual gland is an extremely rare neoplasm. The clinicopathological characteristics of ACC are slow-growing swelling with or without ulceration, perineural spread, local recurrence, and distant metastasis. This report describes a 58-year-old male who had a slowly growing swelling without ulceration on the right side of the mouth floor that had been present for 1 month. In a radiological examination, the mass showed multilocular cystic features and no bony or tongue muscle invasion...
December 2016: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28035308/incidental-finding-of-an-extensive-oropharyngeal-mass-in-magnetic-resonance-imaging-of-a-patient-with-temporomandibular-disorder-a-case-report
#13
Temitope T Omolehinwa, Mel Mupparapu, Sunday O Akintoye
In this report, we describe the incidental finding of an oropharyngeal mass in a patient who presented with a chief complaint of temporomandibular pain. The patient was initially evaluated by an otorhinolaryngologist for complaints of headaches, earache, and sinus congestion. Due to worsening headaches and trismus, he was further referred for the management of temporomandibular disorder. The clinical evaluation was uneventful except for limited mouth opening (trismus). An advanced radiological evaluation using magnetic resonance imaging revealed a mass in the nasopharyngeal/oropharyngeal region...
December 2016: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28035307/long-standing-chin-augmenting-costochondral-graft-creating-a-diagnostic-challenge-a-case-report-and-literature-review
#14
Fatma Fayez Badr, Mark Mintline, Axel Ruprecht, Donald Cohen, Barton R Blumberg, Madhu K Nair
To our knowledge, the imaging features of costochondral grafts (CCGs) on cone-beam computed tomography (CBCT) have not been documented in the literature. We present the case of a CCG in the facial soft tissue to the anterior mandible, with changes mimicking a cartilaginous neoplasm. This is the first report to describe the CBCT imaging features of a long-standing graft in the anterior mandible. Implants or grafts may be incidental findings on radiographic images made for unrelated purposes. Although most are well-defined and radiographically homogeneous, being of relatively inert non-biological material, immune reactions to some grafts may stimulate alterations in the appearance of surrounding tissues...
December 2016: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28035306/radiographic-features-of-plasma-cell-leukemia-in-the-maxilla-a-case-report
#15
Phillip Wong, Deeba Kashtwari, Madhu K Nair
Plasma cell leukemia (PCL) is an aggressive form of multiple myeloma where there is hematogenous spread of abnormal plasma cells into the periphery. This is opposed to multiple myeloma, where the abnormal plasma cells stay in the bone marrow. PCL is more common in males than females, and is also more common in African-Americans than Caucasians. Signs and symptoms of PCL include, but are not limited to, renal insufficiency, hypercalcemia, anemia, lytic bone lesions, thrombocytopenia, hepatomegaly, and splenomegaly...
December 2016: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28035305/gardner-syndrome-associated-with-multiple-osteomas-intestinal-polyposis-and-epidermoid-cysts
#16
Kwang-Joon Koh, Ha-Na Park, Kyoung-A Kim
Gardner syndrome is known as a variant of familial adenomatous polyposis. This syndrome is characterized by multiple intestinal polyposes, osteomas, and epidermoid cysts. In addition, dental abnormalities include an increased frequency of multiple odontomas, as well as supernumerary and impacted teeth. The authors report the case of a 7-year-old male patient with Gardner syndrome. Radiographic findings revealed multiple osteomas in both sides of the maxilla, multiple diffuse enostoses in both jaws, and a complex odontoma in the left mandibular body...
December 2016: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28035304/fibrous-dysplasia-of-the-maxilla-in-an-elderly-female-case-report-on-a-14-year-quiescent-phase
#17
Byung-Do Lee, Wan Lee, Yong-Chan Park, Myoung-Hyoun Kim, Moon-Ki Choi, Jung-Hoon Yoon
Fibrous dysplasia (FD) is an uncommon skeletal disorder in which normal bone is replaced by abnormal fibro-osseous tissue. Mainly, FD is found in children, and by adulthood it usually becomes quiescent. Our case showed FD of more than 14-year duration in the left maxilla. Our evaluation was that growth ceased in adulthood and had achieved the static stage. Because FD cases in elderly patients are rarely reported, we hereby present a monostotic FD case in a 65-year-old female. We presented sequential radiographic images and scintigraphic images of this case, and combined them with a literature review that emphasized the progression of the disease...
December 2016: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28035303/the-effects-of-impacted-premaxillary-supernumerary-teeth-on-permanent-incisors
#18
Yun-Hoa Jung, Ji-Yeon Kim, Bong-Hae Cho
PURPOSE: The aim of this study was to examine the radiographic features associated with impacted premaxillary supernumerary teeth, to determine the relationship between their characteristics and their effects on permanent incisors, and to investigate the types of orthodontic treatment that patients received after the extraction of impacted supernumerary teeth. MATERIALS AND METHODS: The clinical records and radiographs of 193 patients whose impacted premaxillary supernumerary teeth were removed were retrospectively reviewed, and 241 impacted supernumerary teeth were examined...
December 2016: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28035302/analysis-of-the-priority-of-anatomic-structures-according-to-the-diagnostic-task-in-cone-beam-computed-tomographic-images
#19
Jin-Woo Choi
PURPOSE: This study was designed to evaluate differences in the required visibility of anatomic structures according to the diagnostic tasks of implant planning and periapical diagnosis. MATERIALS AND METHODS: Images of a real skull phantom were acquired under 24 combinations of different exposure conditions in a cone-beam computed tomography scanner (60, 70, 80, 90, 100, and 110 kV and 4, 6, 8, and 10 mA). Five radiologists evaluated the visibility of anatomic structures and the image quality for diagnostic tasks using a 6-point scale...
December 2016: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28035301/brazilian-young-dental-practitioners-use-and-acceptance-of-digital-radiographic-examinations
#20
Karla Rovaris, Karla de Faria Vasconcelos, Eduarda Helena Leandro do Nascimento, Matheus Lima Oliveira, Deborah Queiroz Freitas, Francisco Haiter-Neto
PURPOSE: The aim of this study was to investigate the use and acceptance of digital radiographic examinations by Brazilian dental practitioners in daily practice and to evaluate the advances that have occurred over the past 5 years. MATERIALS AND METHODS: Dental practitioners enrolled in extension courses at the Piracicaba Dental School, University of Campinas, Brazil, responded to a self-administered questionnaire in the years 2011 and 2015. They were asked about sociodemographic factors and their knowledge and use of digital radiographic examinations...
December 2016: Imaging Science in Dentistry
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