Results 191 to 200 of about 17,326 (214)
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OSL dosimeters for dental panoramic radiography
Applied Radiation and Isotopes, 2018The aim of the present work is to determine dosimetric characteristics of commercial optically stimulated luminescence dosimeter (OSLD) to estimate equivalent dose in the patient undergoing panoramic radiography procedure. Digital panoramic unit "Instrumentarium OP200D" was used.
A. López-Valencia +5 more
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Blurring effects in rotational panoramic radiography
Oral Surgery, Oral Medicine, Oral Pathology, 1982Abstract A computer model was developed to investigate how accurately conventional expressions for unsharpness and layer thickness in rotational panoramic radiography approximate the situation encountered in real systems in which the rotational center slides and the effective projection radius varies continuously.
Ulf Welander +5 more
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The use of panoramic radiography in the medical center
Oral Surgery, Oral Medicine, Oral Pathology, 1968Abstract There are innumerable indications and applications for the panoramic radiographic examination of maxillomandibular structure and teeth. This procedure can be used in diagnosis, treatment planning, treatment, and follow-up service. In the medical center, the dentist should make it known that panoramic equipment is available if it is not ...
William R. Laney, Dan E. Tolman
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Applicability of simultaneous rotational panoramic radiography.
Dentomaxillofacial Radiology, 1990The position of the image layer in simultaneous multilayer rotational panoramic radiography using films placed parallel in one cassette was calculated for curved and flat cassettes. Parallel films do not result in parallel layers. The use of a flat cassette results in minor shifts in layer position compared with a curved cassette.
Ulf Welander +3 more
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Visualizing the mandibular ramus in panoramic radiography
Oral Surgery, Oral Medicine, Oral Pathology, 1971Abstract Radiographic images of the adult mandibular ramus with its condyloid and coronoid processes are frequently distorted on Panorex radiographs taken in the conventional manner. This distortion is due to the relationship of the ramus to the focal trough and to the direction of the x-ray beam.
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Postoperative Maxillary Cysts in Panoramic Radiography
Dentomaxillofacial Radiology, 1978Panoramic radiographic findings of postoperative maxillary cysts are presented. According to linuma3 4, the cysts appear mainly as monolocular cystic radiolucencies, on or near the floor of the maxillary sinus in patients who have had an operation on the maxillary sinus 10 to 20 years previously.
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Digital panoramic radiography image quality: A comparison with film-based panoramic radiography [PDF]
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 2005 N. Williams +2 more
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Midfacial fractures in dental panoramic radiography
Oral Surgery, Oral Medicine, Oral Pathology, 1984The purpose of the present study was to evaluate the ability of panoramic radiographs to demonstrate facial fractures. Radiographs of eighty-two patients were analyzed retrospectively in cases in which both panoramic and conventional skull radiographs were available.
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