Chapter 42 - Extraoral And Digital Radiography

Front 1

Cephalostat

Back 1

Special device that allows the operator to easily position both film and patient.

Front 2

Charge-coupled device (CCD)

Back 2

Image receptor found in the intraoral sensor.

Front 3

Digital radiography

Back 3

Filmless imaging system that uses a sensor to capture images, then converts the images into electronic pieces and stores them in a computer.

Front 4

Digital image

Back 4

An image composed of pixels.

Front 5

Digitize

Back 5

To convert an image into a digital form that, in turn, can be processed by a computer.

Front 6

Direct digital imaging

Back 6

A technique in which the image is captured on an intraoral sensor and then is viewed on a computer monitor.

Front 7

Extraoral radiographs

Back 7

Radiographs taken when large areas of the skull or jaw must be examined.

Front 8

Focal trough

Back 8

Imaginary three-dimensional horseshoe-shaped zone used to focus panoramic radiographs.

Front 9

Frankfort plane

Back 9

Imaginary plane that passes through the top of the ear canal and the bottom of the eye socket.

Front 10

Indirect digital imaging

Back 10

An existing radiograph is scanned and converted into a digital form with the use of a charge-coupled device (CCO) camera.

Front 11

Exposure controls

Back 11

Feature that allows the operator to adjust the milliamperage and kilovoltage settings.

Front 12

Midsagittal plane

Back 12

Imaginary line that divides the patient's face into right and left sides.

Front 13

Sensor

Back 13

Small detector that is placed intraorally to capture a radiographic Image.

Front 14

Storage phosphor imaging

Back 14

Technique in which a digital image is captured 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.

Front 15

Temporomandibular

Back 15

Joint on each side of the head that allows movement of the mandible.

Front 16

Tomography

Back 16

Radiographic technique that allows imaging of one layer or section of the body while blurring images from structures in other planes.