نتایج جستجو برای: mandible radiography
تعداد نتایج: 30922 فیلتر نتایج به سال:
Langerhans Cell Disease (LCD), formerly known as Histiocytosis X, is a rare disorder characterized by a proliferation of cells exhibiting phenotypic characteristics of langerhans cells. The etiology and pathogenesis of this disease is unknown. It can occur as focal or disseminated form-acute or chronic. Oral manifestations may be the first signs. In this report a 2-year old boy is presented. He...
Background and Aims: The Panoramic radiography is one of the routine techniques in implant imaging. Although there are some limitations with this technique, panoramic radiography is radiographic choice for basic evaluation for implant treatment. Many studies have been designed to determine magnification in panoramic images but most of them were performed on dry skulls or radiographic phantoms. ...
Introduction: The purpose of this study was to determine the accuracy of panoramic radiograph in locating the position of lingula as an index to estimate the location of mandibular foramen. Methods: The distance measurement in this study was carried out on 30 dry mandibles, composed of at least 2 first molars and one canine. Photography and panoramic radiography of the mandible was performed...
Introduction: The aim of this study was to determine the accuracy of digital panoramic radiography in estimating the crestal width of implant fixtures after surgery. Materials and Methods:We selected 241 digital panoramic images after implant insertion which had documented information of their actual size. The crestal width was measured on radiographs. We compared two measuring methods in diff...
We report a rare case of intraosseous neurilemmoma of the mandible, with an emphasis on radiographic findings. The tumor, located mainly in the premolar region, presented as an expansive, unilocular, well-defined, radiolucent lesion on plain radiography. No dilatation of the mandibular canal was identified. MR imaging helped to identify the solid nature of the tumor. A biopsy was necessary to m...
In the past, dental disease and lesions involving the jaw were either evaluated by plain radiography or tomography. The advent of spiral computed tomography (CT) and DentaScan is changing the imaging trend. It is now not only used for pre-implant assessment but also in the diagnosis of lesions affecting the jaw. This pictorial review discusses the role of DentaScan in the various abnormalities ...
Cemento-ossifying fibroma (COF) is a rare benign fibro-osseous tumor. The radiographic and clinical features of this lesion are unpredictable and variable. In this report, the patient was a 12-year old girl with a painless swelling which demonstrated an opaque lesion with radiolucent zone to involve left posterior portion of the mandible on panoramic radiography. The radiographic manifestati...
The aim was to report on a case of ossifying fibroma, consisting of a benign fibro-osseous lesion characterized by slow growth and proliferation of fibrous cellular tissue, bone, cement or a combination. A 29-year-old male patient was attended at a hospital, after he had suffered a car accident. During the clinical examination, increased volume in the region of the right side of the mandible wa...
Plasma cell neoplasms (multiple myeloma, solitary plasmocytoma of bone and extra medullar plasmocytoma) are characterized by a monoclonal neoplastic proliferation of plasma cells. Solitary plasmocytoma of bone (SPB) is a localized form of them. SPB is most frequently seen in vertebrae and secondarily in long bones. Its presence in jaws is extremely rare and when it is seen, angulus and ramus ma...
A dental lesion called a lateral periodontal cyst (LPC) can appear on tooth's radicular surface. Standish and Shafer described LPC for the first time in 1958. The mandibular premolars are where this is most frequently found, however it has also been noted other places too. average age of incidence 52 years, there no preference any race or gender. It found during routine radiography examinations...
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