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Maxillofacial Radiology

Humeyra Tercanli Alkis, Elif Kurtuldu, Nebiha Hilal Bilge, Selmi Yilmaz, Osman Murat Bilge
OBJECTIVES: The aims of this study were to determine the prevalence of maxillary sinus retention cysts (MSRCs) and to evaluate the effects of mean temperature and mean air humidity on the prevalence of MSRCs in two cities in Turkey. METHODS: This retrospective study was conducted in Antalya and Erzurum, two cities with different air humidities and temperatures in Turkey. Panoramic images of patients who visited the Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Akdeniz University and Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Ataturk University for diagnostic purposes were evaluated...
December 6, 2018: Oral Radiology
Y N Zhao, Y Q Zhang, X Ye, Y Meng, X Y Xie, D G Liu
Objective: To investigate the different surgical approaches and long-term outcomes of endoscopy-assisted transoral removal of deep hilar and intraparenchymal stones in the Wharton's duct. Methods: From January 2008 to March 2018, 481 consecutive patients with deep hilar and intraparenchymal calculi in the Wharton's duct underwent endoscopy-assisted transoral removal at Deparment of Oral and Maxillofacial Radiology, Peking University School and Hospital of Stomatology. There were 250 males and 231 females. Their ages ranged from 9-86 years...
December 9, 2018: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
Mayumi Shimizu, Warangkana Weerawanich
Sonography is a simple, inexpensive, and non-invasive diagnostic modality. Although tissues behind bony structures and deep tissues are not delineated, sonography can depict superficial soft tissues very clearly. In the head and neck region, however, it has not yet been used widely, as the anatomical structures are complicated, and considerable experience is needed both to perform an examination and to make a diagnosis. To perform examinations efficiently, operators must be familiar with the sonographic system in use, and take images at standard planes...
November 3, 2018: Oral Radiology
Galal Omami
Teachers of radiology often employ the use of classic signs to help learners identify the typical appearance of various pathologies. This article is a compendium of simply-described classic signs in oral and maxillofacial radiology, including their use in differential diagnoses.
October 10, 2018: Oral Radiology
Cansu Buyuk, Kaan Gunduz, Hakan Avsever
OBJECTIVE: The aim of this study was to determine the prevalence and characteristics of pneumatization of the articular tubercle (PAT) and pneumatization of the roof of the glenoid fossa (PRGF) in a large population using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: This study was designed to evaluate the CBCT images of 1000 patients. The prevalences of the pneumatizations by age, sex, locularity, and laterality were determined. The significance of differences between variables was evaluated by the Chi-square test and analysis of variance...
May 21, 2018: Oral Radiology
Takafumi Hayashi, Yoshinori Arai, Toru Chikui, Sachiko Hayashi-Sakai, Kazuya Honda, Hiroko Indo, Taisuke Kawai, Kaoru Kobayashi, Shumei Murakami, Masako Nagasawa, Munetaka Naitoh, Eiji Nakayama, Yutaka Nikkuni, Hideyoshi Nishiyama, Noriaki Shoji, Shigeaki Suenaga, Ray Tanaka
Dental cone-beam computed tomography (CBCT) received regulatory approval in Japan in 2000 and has been widely used since being approved for coverage by the National Health Insurance system in 2012. This imaging technique allows dental practitioners to observe and diagnose lesions in the dental hard tissue in three dimensions (3D). When performing routine radiography, the examination must be justified, and optimal protection should be provided according to the ALARA (as low as reasonably achievable) principles laid down by the International Commission on Radiological Protection...
May 2018: Oral Radiology
Babatunde O Bamgbose, Muhammad A Suwaid, Mohammad Abubakar Kaura, Irfan Sugianto, Miki Hisatomi, Junichi Asaumi
BACKGROUND: Oral and maxillofacial radiology became the ninth dental specialty recognized by the American Dental Association (ADA) in 1999. This came about following the discovery of X-rays by Wilhelm Conrad Roentgen in 1895 and, 14 days later, the application of X-rays to making dental radiographs by Otto Walkhoff. The purpose of this narrative study was to review the evolution of oral and maxillofacial radiology as a dental specialty in the USA and its recognition as a program of training by the West African College of Surgeons...
May 2018: Oral Radiology
Hui Yuh Soh, Azizah Ahmad Fauzi, Abd Jabar Nazimi, Roszalina Ramli
The most conspicuous element of Gorham's disease is its radiographic features, wherein massive disappearance of the mandible is observed. We report a case of an adolescent boy with massive osteolysis of the mandible in whom the diagnosis of Gorham's disease was made. A 14-year-old boy was referred to the Department of Oral and Maxillofacial Surgery, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, for the management of a massive mandibular deformity. He was diagnosed with a hemangioma-like lesion at 1 year of age...
May 2018: Oral Radiology
Katheleen Miranda Dos Santos, Jennifer Tsi Gerber, Pedro Teruo Mendes Okazaki, Cibele Cândida de Almeida Kintopp, Leandro Eduardo Klüppel, Allan Fernando Giovanini, Rafaela Scariot
Introduction: Plasmacytoma describes a neoplastic proliferation of plasma cells affecting different groups of patients according to location, and may demonstrate heterogeneous tumor progression and survival rate. The present article describes a case of solitary plasmacytoma in the mandible . Presentation of case: A 57-year-old male smoker was referred to the oral and maxillofacial service with extensive injury, approximately 4-5 cm in size, involving the anterior inferior region of mandible...
December 2018: Annals of Medicine and Surgery
Mohamed El Sayed, Reem Hassan Saad, Ahmed Fereir
INTRODUCTION: Impacted foreign bodies in the complex maxillofacial region is uncommon and their safe removal is a challenge. CASE PRESENTATION: The authors report an unusual case of a 41 year old male patient who suffered from violence-related orbital trauma with a knife. The presence of this foreign body was not diagnosed for a period of 20 months. After proper clinical and radiologic examination it was localized and extracted in the theater in a safe controlled manner...
November 1, 2018: International Journal of Surgery Case Reports
L N Kang, F Guo, X K Zhu, P G Du, J G Zhang, Z C Feng
Objective: To analyze the absorptive radiation dose of non-target sensitive organs under the NewTomVGi oral and maxillofacial cone-beam CT scanning in different view fields. Methods: The thermoluminescence dosimeter chip was placed in the non-target sensitive organ of the simulated radiology head model, and 6 scanning fields were measured and analyzed (standard resolution: scanning range was 15 cm×15 cm, 15 cm×12 cm, 12 cm×8 cm, 8 cm×8 cm respectively). High definition resolution: the radiation absorption dose of thermoluminescence with the scanning range of 12 cm×8 cm, 8 cm×8 cm, respectively...
November 9, 2018: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
Irene H Kim, Steven R Singer, Mel Mupparapu
OBJECTIVE: The aim of this article is to investigate, study, and summarize cone beam computed tomography (CBCT)-related guidelines offered by relevant organizations and associations within North America to provide the dental practitioner a clearer direction on the practice of CBCT-related procedures in North America. DATA SOURCES: Scientific databases including PubMed, Science Direct, Scopus, MedLine, and Web of Science were used for the search of relevant literature on the CBCT guidelines developed in North America...
November 8, 2018: Quintessence International
Koenraad Grisar, Jasper Vanpoecke, Margot Raes, Emad Ali Albdour, Guy Willems, Constantinus Politis, Reinhilde Jacobs
The purpose of this study was to propose and validate an index evaluating 2D and 3D radiographic variables of autotransplanted maxillary canines. Setting and sample population are from the Department of Oral and Maxillofacial Surgery at University Hospitals Leuven. Eight oral-maxillofacial surgeons rated 12 autotransplanted maxillary canines and adjacent bone using 11 rating variables. A new autotransplanted maxillary canine radiological index (AMCRI) was proposed. It consisted of 11 variables. These variables were based on 2D (intraoral) and 3D Cone Beam Computed Tomography (CBCT) radiographs...
October 2018: Clinical and Experimental Dental Research
Eszter Danka, Gábor Tamás Pintér, Márton Keresztúri, György Szabó
Chronic nonbacterial osteomyelitis is a sterile inflammatory osteitis that most commonly develops in the long bones, but it can occur in any bone. Mandibular lesions are found in 1.5-3% of disease foci in patients and it is poorly characterized in the maxillofacial surgery literature due to the use of inconsistent terminology. The purpose of this study was to present the clinical experience of chronic nonbacterial multicentric osteomyelitis and a collection of research and information of the disease. This is a retrospective study of 2 cases with mandibular lesions radiographically consistent with osteomyelitis without infection...
October 2018: Orvosi Hetilap
Nagihan Koç, Leyla Berna Çağırankaya
Mandibular tori are associated with mandibular bone quality: a case-control study Running title: Tori and mandibular bone quality Nagihan Koç, Leyla Berna Çağırankaya Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Hacettepe University, Sihhiye, Ankara, Turkey ADDRESS FOR CORRESPONDENCE: Nagihan Koç, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Hacettepe University, Sihhiye, 06230 Ankara, Turkey, tel: 90-312-305-22-05, fax: 90-312-310-44-40, e-mail: nagihan...
October 12, 2018: Folia Morphologica (Warsz)
Sheng Zhang, Dandan Wu, Liqiang Shi, Yuxing Zhang, Kaiping Long, Yun Fan, Bing Zhu, Xiaohang Jin, Yan Ren, Chunli Zhang, Pei Wang
Gorham disease, a rare disorder of unknown etiology, is characterized by the clinical and radiologic disappearance of bone. Because the etiology is unknown, diagnosis is difficult. Therefore, radiographic manifestations play a vital role in the diagnosis of this disease. Thus far, there has been no completely effective treatment. Most remedies are limited to symptom management. Despite the fact that any bone can be affected, one of the most prevalent sites is the maxillofacial region. In this paper, 2 cases of Gorham disease involving the maxillofacial region are reported, including preoperative and postoperative radiographic features...
August 31, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
A K Nabeel, Jesmith Elsa Jacob, Tinky Bose, K P Sangeetha, K N Sandhya, Anita Balan
An arteriovenous malformation (AVM) is a vascular malformation characterized by anomalous communications between arteries and veins without the normal intervening capillary bed. AVMs of jaw are extremely rare conditions that can give rise to dreadful complications if handled carelessly. Fifty percent of all intraosseous AVMs occur in the maxillofacial region and are extremely infrequent in the mandible. Only six cases of extraosseous submandibular AVMs have been mentioned in the literature. Three cases of AVMs involving the mandible, with a massive case involving both the mandible and submandibular region is reported...
July 2018: Contemporary Clinical Dentistry
Wiwiek Poedjiastoeti, Siriwan Suebnukarn
Objectives: Ameloblastomas and keratocystic odontogenic tumors (KCOTs) are important odontogenic tumors of the jaw. While their radiological findings are similar, the behaviors of these two types of tumors are different. Precise preoperative diagnosis of these tumors can help oral and maxillofacial surgeons plan appropriate treatment. In this study, we created a convolutional neural network (CNN) for the detection of ameloblastomas and KCOTs. Methods: Five hundred digital panoramic images of ameloblastomas and KCOTs were retrospectively collected from a hospital information system, whose patient information could not be identified, and preprocessed by inverse logarithm and histogram equalization...
July 2018: Healthcare Informatics Research
James R Geist
No abstract text is available yet for this article.
June 27, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
J W Nolte, R Schreurs, L H E Karssemakers, D B Tuinzing, A G Becking
PURPOSE: Unilateral Condylar Hyperplasia (UCH) is an acquired deformity of the mandible, which can highly influence the symmetry of the face due to its progressive nature. It is caused by growth resembling pathology in one of the mandibular condyles. Definition as well as classification is subject to discussion. The aim of this study is to evaluate a large cohort of alleged UCH patients, and to describe the clinical characteristics, demographic features, classification and follow up. Secondly an algorithm is presented, in order to achieve uniformity in diagnosis and treatment...
September 2018: Journal of Cranio-maxillo-facial Surgery
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