نتایج جستجو برای: panoramic radiography
تعداد نتایج: 23591 فیلتر نتایج به سال:
AIM To compare the use of film-based periapical radiographs and digital panoramic images displayed on monitor and glossy paper in the assessment of the periapical status of the teeth. METHODOLOGY A total of 86 subjects were examined. All participants underwent a full-mouth radiographic survey (14 periapical radiographs) and a digital panoramic radiography. The periapical status of all apprais...
comparison of linear dimensions and angular measurements on panoramic images taken with two machines
background and aims. panoramic radiography is a method widely used because of low absorbed dose in patients (approximately 10 times less than that in the full mouth survey), reasonable cost and time. disadvantages of this radiography technique are magnification and distortion as a result of unequal magnification, which can influence dimensional and angular measurements used in clinical dentistr...
The purposes of this report, “Multiple Radiographic Analysis (Systemic Disease), dental panoramic radiography” will be interpreted conditions which are spread out within the body rather than localized strictly to the tissues of the oral cavity. Our main goal is discussing different possibilities for analysis and research, highlighting a few different publications in this theme of study, using i...
BACKGROUND Scaphoid fractures are the most common type of carpal fractures. OBJECTIVES The aim of the study was to compare the diagnostic value of panoramic and conventional radiographs of the wrist in scaphoid fractures. PATIENTS AND METHODS The panoramic and conventional radiographs of 122 patients with acute and chronic wrist trauma were studied. The radiographs were analyzed and examine...
Indications for the most frequently used imaging modalities in implant dentistry are proposed based on clinical need and biologic risk for the patient. To calculate the biologic risk, the authors carried out dose measurements. They demonstrated that the risk from a periapical radiograph is 20% of that from a panoramic radiograph. A panoramic radiograph and a series of 4 conventional tomographs ...
introduction: idiopathic osteosclerosis is a common radiopaque lesion in the jaw bones, which is asymptomatic and usually detected accidentally in various radiographs. the purpose of this study was to determine the radiographic features of idiopathic osteosclerosis in the jawbones of patients referring to the maxillofacial radiology center of mashhad dental faculty. methods: in this descriptive...
introdouction: the aim of the present study was to investigate image magnification in digital panoramic radiography and assess the effect of anatomical sites on the magnification in both males and females. materials and methods: in this retrospective study, digital panoramic radiographs of 48 patients with 202 implants were investigated. implant diameter and length were measured on panoramic ra...
background: the anatomic position and proven radiosensitivity of the thyroid make it an organ of concern in dental x-ray examinations. a national radiation protection department (nrpd)-sponsored pilot study carried out in the dental radiology department of rums., to assess if the radiation dose in panoramic radiographies could be reduced without significant impairment of the subjective image qu...
Background: Panoramic radiography creates distortion in teeth position and inclination especially lateral areas of the arches due to acquisition curved shape dental arch. The aim this study was evaluate panoramic compared cone-beam computed tomography. Methods: Mesiodistal angulations were measured on radiography. buccolingual inclinations determined tomography scans. previous measurements then...
PURPOSE Panoramic radiographs taken using conventional chin-support devices have often presented problems with positioning accuracy and reproducibility. The aim of this report was to propose a new bite block for panoramic radiographs of anterior edentulous patients that better addresses these two issues. MATERIALS AND METHODS A new panoramic radiography bite block similar to the bite block fo...
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