alexa Maxillofacial Radiology|OMICS International|Anaplastology

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Maxillofacial Radiology

panoramic radiography are the most common preferred modalities for implant dentistry. Intraoral imaging continues to provide the best spatial resolution of any imaging method currently available. The clinical diagnostic capacity of intraoral radiography is influenced by a number of variables, including beam angulation, exposure time, receptor sensitivity, processing, viewing conditions, superimposition of anatomic structures and lesion location. Panoramic radiography, in which images of both jaws are obtained through the synchronous rotation of an x-ray source and image receptor around a stationary patient, can provide broad coverage of both jaws and teeth, but without the anatomical detail available with intraoral radiography. Moreover, there is a magnifying factor associated with image formation, and projection geometry results in image distortion and a marked overlapping of tooth crowns. Distortion is reported to be 14% for periapical and 23% for panoramic radiographs. In contrast to both intraoral and panoramic techniques, which by their nature are incapable of capturing information about the third dimension of teeth and adjacent structures, Cone-Beam Computerized Tomography (CBCT) was developed and introduced specifically for dento-maxillofacial imaging. CBCT which is recently very popular in implant planning offer reduced effective radiation doses, shorter acquisition scan times, easier imaging and lower costs compared to medical CT. CBCT doses, while lower than those from conventional CT, and are still significantly higher than those from conventional dental radiography. Differences in CBCT device, FOV, exposure parameters (kVp, mA) and other technical factors result in substantial differences in radiation doses. Dose is strongly related to (Field of view) FOV, which varies according to indication. Dento-Maxillofacial Radiology in Implant Dentistry: Kıvanc Kamburoğlu
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Last date updated on June, 2014

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