extraoral and digital radiography
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| special device that allows the operator to easily position both film and patient | cephalostat
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| image receptor found in the intraoral sensor | charge coupled device
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| filmless imaging system tha uses a sensor to caputre images, then coverts the images into electronic pieces and stores them in a computer | digital radiography
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| an image composed of pixels | digital image
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| to convert an image into a digital form that it turn can be processed by a computer | digitize
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| a technique in which the image is captured on an intraoral sensor and then is viewed on a computer monitor | direct digital imaging
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| feature that allows the operator to adjust the milliamperage and kilovoltage settings | exposure controls
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| rediographs taken when large areas of the skull or jaw must be examined | extraoral radiographs
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| imaginary three dimensional horse shoue shaped zone used to focus panoramic radiographs | focal trough
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| imaginary plane that passes through the top of the ear canal and the bottom of the eye socket | frankfort plane
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| an existing radiograph is scanned and converted into a digital form with the use of a charge coupled device camera | indirect digital imaging
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| imaginary line that divides the patients face into right and left sides | midsaggital plane
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| small detector that is placed intraorally to caputre a radiographic image | sensor
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| technique in which a digital image is caputred on phosphor coated plates and then is placed into an electronic processor where a laser scans the plate and produces an image on a computer screen | storage phosphor imaging
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| joint on each side of teh head that allows movement of the mandible | temporomandibular
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| radiographic technique that allows imaging of one layer or section fo the body while blurring images from structures in other planes | tomography
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| when are extraoral radiographs taken | when large areas of teh skull or jaw must be examined or when patients are unable to open their mouths for film placement
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| Panoramic radiographs allow the dentist to | view the entire dentition and related structures on a single film
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| the images on a panoramic film are not as well defined or clear as the images on intraoral films therefore __________ are used to supplement a panoramic film to detect________ | bitewing films, dental caries or periapical lesions
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| panoramic radiographs are used to: | locate impacted teeth, observe tooth eruption patterns, detect lesions in the jaw, detect features in the bone, provide an overall view of the mandible and maxilla
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| panoramic radiographs are not used for | substitute for intraoral films, diagnose dental caries, diagnose periodontal disease, diagnose periapical lesions
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| when taking a panoramic radiograph what supplies are used | panoramic xray unit, screen type film, intensifying screens and cassettes
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| if you do not remove all removable metal objects from the facial area you can get what kind of image on your panoramic radiograph | ghost images
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| if the patients lips are not closed during a panoramic radiograph the result is | a dark radioluent shadow that abscures the anterior teeth
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| where should the patient postition the tongue during a panoramic radiograph | in contact with the palate
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| if the tongue is not properly placed during a panoramic radiograph what is the result | a dark radiolucent shadow that obscures the apices of teh maxillary teeth
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| if the patient is positioned with the chin too high when taking a panoramic radiograph the result will be | a reverse smile line
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| if the patient is positioned with the chin too low when taking a panoramic radiograph the result is | an exaggerated smile line will be apparent
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| if the patients anterior teeth are positioned to far back on the bite block what is the result | the anterior teeth appear too fat
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| if the patients anterior teeth are not positioned in the groove on the bite block and are too far forward the teeth appear | to skinny and out of focus
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| if the patient is not standing or sitting with a straight spine what is the result | the cervical spine appears as a radiopacity in the center of the film
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cynthia.fryer
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