Results 211 to 220 of about 9,533 (264)
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A digital subtraction technique for dental radiography
Oral Surgery, Oral Medicine, Oral Pathology, 1983The relative accessibility and stability of the teeth facilitate generation of geometrically identical radiographs over a period of time. When such radiographs are digitized with the aid of a TV camera coupled to an analog to digital converter and a computer, it is possible to conveniently produce subtraction images of high diagnostic value.
H G, Gröndahl +2 more
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Digital Radiography in the Dental Practice: An Update
Primary Dental Journal, 2013The implementation of digital imaging in dental practice should be considered. The vast number of advantages of digital imaging include time saving and image manipulation. Dose reduction is a big attraction but in practical terms this might not be fully taken advantage of, as a number of studies suggest.
Jimmy, Makdissi, Ravikiran, Pawar
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Is digital better in dental radiography?
Radiation Protection Dosimetry, 2008In Slovenia, dental radiography was the first field in which projection x-ray imaging using digital detectors was done. At present around 30% of intraoral dental x-ray units use digital detectors. Annual test results were analysed to compare digital systems with film-based ones.
U, Zdesar +3 more
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Bayesian denoising in digital radiography: A comparison in the dental field
Computerized Medical Imaging and Graphics, 2013We compared two Bayesian denoising algorithms for digital radiographs, based on Total Variation regularization and wavelet decomposition. The comparison was performed on simulated radiographs with different photon counts and frequency content and on real dental radiographs.
I. Frosio +4 more
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Digital radiography in general dental practice: a field study
Dentomaxillofacial Radiology, 2007The aim of this study was to conduct a field study to survey the performance of digital radiography and how it was used by dentists in general dental practice.19 general dental practitioners were visited at their clinics. Ambient light (illuminance) was measured in the rooms where the monitors were placed.
K, Hellén-Halme +2 more
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Journal of Homeland Security and Emergency Management, 2004
Terrorist activity has the potential to cause mass casualties. The number of victims often overwhelms the ability of local jurisdictions to identify the causalities in an accurate and timely fashion. Most identifications are usually made through the comparison of ante mortem dental records with post mortem radiographic and clinical findings ...
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Terrorist activity has the potential to cause mass casualties. The number of victims often overwhelms the ability of local jurisdictions to identify the causalities in an accurate and timely fashion. Most identifications are usually made through the comparison of ante mortem dental records with post mortem radiographic and clinical findings ...
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Quantitative subtraction with direct digital dental radiography.
Dentomaxillofacial Radiology, 1997To elucidate the accuracy in vitro of quantitative digital subtraction for direct digital dental radiography using a commercially available image analysis system.Images were corrected first for dark current and sensitivity variation among pixels of the CCD sensor (first correction), and corrected further for interimage variations due to the variations ...
T, Yoshioka +3 more
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