Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Stack #4680446
| Term | Definition |
|---|---|
| ALARA Concept | concept of radiation protection that states that all exposures should be kept "as low as reasonably achievable" |
| ANODE | positive electrode in the x-ray tube |
| atom | the basic unit of matter |
| Bremsstrahlung radiation | "breaking radiation". The sudden deceleration of electrons as they interact with highly positively charged nuclei |
| Cathode | Negative electrode in the x-ray tube |
| Central Ray | X-rays at the center of the beam |
| Contrast | Differences in degrees of blackness on an image |
| Control Panel | the portion of the x-ray unit that contains the master switch, the indicator light, the selector buttons, and the exposure buttons |
| Density | The overall darkness or blackness of an image |
| Dental radiography | The process of recording images of the teeth and adjacent structures by exposure to x-radiation |
| Digital image | a film less method of capturing an image ad displaying it by using an image receptor, an electronic signal, and a computer to process and store the image |
| Distortion | Change in the size of an image caused by incorrect vertical angulation |
| Dose(of radiation) | The amount of energy absorbed by tissues |
| Dosimeter | A device used to detect and measure an accumulated dosage of radiation |
| Electron | A negatively charged particle in the atom |
| Energy | The ability to do work |
| Extension arm | Flexible arm that is attached to the c-ray tubehead |
| Genetic effects | Effects of radiation that are passed on to future generations through genetic cells |
| Image | Film-based or digitally produced recordings of anatomic structures |
| Image receptor | A recording medium for an image, normally film, phosphor storage plate, or a digital sensor |
| Intensity | The total energy of the x-ray beam |
| Ion | An electrically charged particle |
| Ionization | Process by which electrons are removed from atoms, causing the harmful effects of radiation |
| Ionizing radiation | Radiation that produces ionization, resulting in harmful effects |
| Kilovoltage Peak | Highest voltage of x-ray tube used during an exposure |
| Latent period | Time between exposure to ionizing radiation and appearance of symptoms |
| Lead apron | Device used to protect the reproductive and blood-forming tissues from scatter radiation |
| Magnification | The proportional enlargement of an image |
| Master switch, indicator light, selector buttons, exposure buttons | Components of control panel |
| Matter | Anything that occupies space and has form or shape |
| Beam alignment device | Assists in the positioning of the position indicator device |
| Bitewing | Image view that shows the crowns of both arches on one film |
| Calcium tungstate | common type of phosphor |
| Photon | A minute bundle of pure energy that has no weight or mass |
| primary beam | The most penetrating beam produced at the target of the anode |
| Primary radiation | same as primary beam |
| quality | The mean energy or penetrating ability on the x-ray beam |
| quantity | The number of x-rays produced in the dental unit; the quantity of x-rays produced is controlled by milliamperage |
| Radiation | forms of waves of energy emissions through space or material |
| Radiograph | Image produced on photosensitive film by exposing the film to radiation and then processing it |
| Radiology | The science or study of radiation as used in medicine |
| Scatter radiation | A form of secondary radiation that occurs when an x-ray beam has been deflected from its path by interaction with matter |
| Sensor | A solid-state image reflector that contains a silicon chip with an electric circuit |
| Sharpness | A measure of how well an image reproduces the fine details or outline of an object |
| Somatic | Effects of radiation that cause illness and are responsible for poor health but are not passed on the offspring |
| Thyroid collar | A flexible lead shield that is placed securely around the neck |
| Tubehead | The part of the x-ray unit that contains the x-ray tube. the high voltage and low voltage transformers, and insulating oil |
| Tungsten target | A focal spot in the anode |
| X-radiation | High-energy ionizing electromagnetic radiation |
| 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 images used for inter proximal examination |
| Central ray | X-ray at center of beam |
| Contact area | Area of the mesial 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 indefinetly |
| 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 jaws |
| Parallel | Moving or lying in the same plane, always seperated 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 function of the body, such as vision, hearing, or mobilty |
| Positioning instruments | Intraoral devices used to position and hold the film, sensor, or PSP |
| Right angle | Angle of 90 degrees forked by two 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 technology | A three-dimensional digital imaging method that uses a cone-shaped beam of radiation that rotates around the patient |
| Digital Panoramic units | A film less 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 kilovoltage 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 three-dimensional horseshoe-shaped zone used to focus panoramic radiographs |
| Frankfort plane | Imaginary plane that passes through the top of the ear canal and the bottom of the eye socket |
| Midsagittal plane | Imaginary line that divides the patient's face into right and left sides |
| Temporomandibular joint | Joint on each side of the head that allows movement of the mandible |
| Three-dimensional digital imaging | An image that demonstrates anatomy in three dimensions |
Created by:
setha