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Radiology and dental
| Term | Definition |
|---|---|
| Angulation | Alignment of central ray of X ray beam in horizontal and vertical planes |
| Bisecting technique | Intraoral technique of exposing dental images |
| Bitewing | Type of imagery used for inter proximal examination |
| Central ray | X ray at center of beam |
| Contact area | area of the medial or distal surfaces of a tooth that touches an adjacent tooth in the same arch |
| Crestal bone | coronal portion of alveolar bone found between the teeth |
| Developmental disability | impairment of mental or physical functioning that usually occurs before adulthood and lasts indefinitely |
| Diagnostic quality | referring to images with the proper structures and necessary density, contrast, definition, and detail for diagnostic purposes. |
| Interproximal | Between two adjacent surfaces |
| Intersecting | cutting across or through |
| Long axis of the tooth | imaginary line dividing the tooth longitudinally into two equal halves |
| Occlusal technique | used to examine large areas of the upper or lower jaw |
| Parallel | moving or lying in the same plane, always separated by the same distance. |
| Paralleling technique | intraoral technique of exposing periapical and bitewing images |
| Perpendicular | intersecting at or forming a right angle |
| Physical disability | impairment in certain functions of the body, such as vision, hearing, or mobility |
| Positioning instrument | Intraoral device used to position and hold the film, sensor, or PSP |
| Right angle | Angle of 90 degrees formed by 2 lines perpendicular to each other |
| cephalostat | special device that allows the operator to easily position both film and patient |
| Computed tomography | Radiographic technique that produces images or "slices" of one layer or section of the specific areas. Also referred to as computed axial tomography |
| cone beam computed tomography | A three dimensional digital imaging method that uses a cone shaped beam of radiation that rotates around the patient |
| digital panoramic units | A filmless method of recording a panoramic image and displaying it by using an electronic sensor and a computer to process and store the image |
| exposure controls | feature that allows the operator to adjust the milliamperage and kilovotage settings |
| extraoral images | images taken when large areas of the skull or jaw must be examined |
| extraoral imaging | an image of the teeth and bones made by placing the film or cassette against the face or the head and projecting the X rays from the opposite side. |
| field of view | The area that can be shown when performing imaging procedures |
| focal trough | imaginary 3 dimensional horseshoe shaped zone used to focus panoramic radiographs |
| frankfort plane | imaginart plane that passes through the top of the ear canal; and the bottom of the eye socket. |
| Midsagittal plane | imaginary line that divides the patients face into right and left sides |
| tempromandibular joint | joint on each side of the head that allows movement of the mandible |
| three dimensional digital imaging | an image that demonstrates the anatomy in three dimensions. |
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