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
Quiz CH 39
| Term | Definition |
|---|---|
| When loading an extraoral film into the cassette prior to exposure, the | procedure must be done in the darkroom. |
| Digital radiography requires less radiation than traditional radiography because the | sensor is more sensitive to x-ray energy. |
| ____ hardens the film emulsion during film processing. | Fixing |
| The charge-coupled device (CCD) in direct digital imaging sensors is made of | silicon. |
| The purpose of the lead foil in the dental film packet is to | reduce film fogging. |
| Dental film holders, used to position and hold the dental x-ray films in the patient’s mouth, include | beam alignment devices such as the Rinn XCP instruments. positioning instruments such as the disposable polystyrene bite-block, EeZee-Grip, and EndoRay. |
| The ideal time and temperature for manual developing is | 5 minutes at 68° F. |
| The recommended distance between the safelight and where the films are unwrapped is | 4 feet. |
| The category of digital imaging similar to faxes and video equipment that uses a sensor with a cord attached to the computer is | direct digital radiography. |
| One reason for a lighter than normal radiograph is the | developer solution is too weak. |
| F-speed dental x-ray film reduces radiation exposure to the patient by __% compared with D-speed dental x-ray film. | 60 |
| The safest place to store unopened boxes of dental film is in the | darkroom. |
| A plastic or metal film cassette holds and protects the extraoral film. During exposure, the side of the cassette the must face the patient is the _____ side. | front |
| Solutions should have been changed in the processor 1 week ago. Continuing to use exhausted developer will result in ____ films. | light |
| Clear spots on a processed film can be caused by | fixer contacts film prior to processing. |
| The most commonly used film size for adult intraoral dentistry is size | #2 |
| Which of the following statements about duplicating film is not correct? | The emulsion side of the film appears shiny. |
| When film emulsion interacts with x-rays, the result is | a latent image. |
| Fixer cutoff will result in a _____ border. | straight black |
| Which of the following time and temperature errors will result in reticulation of the film emulsion? | Sudden temperature change between developer and water bath |
| When a film passes through fixer solutions before developing, the film will appear | clear. |
| Which of the following is an extraoral film that is placed outside the mouth during dental x-ray exposure procedures? | Cephalometric |
| The device that intensifies or increases the effect of the radiation and decreases the amount of exposure time needed when exposing an extraoral radiograph is a(n) | intensifying screen. |
| All the following are true statements about digitizing film-based radiographic images except | it duplicates in the same detail as the original film. |
| When placing a dental film in the patient’s mouth, the white side is placed ____ the dental x-ray tubehead, and the raised dot to the ____ surface. | toward; occlusal or incisal |
| Faster film speed would be associated with _____ silver halide crystals, a _______ emulsion, and presence of special radiosensitive dyes. | smaller; thinner |
| When developer solution in an automatic processor is warmer than 83° F, the processed film will appear | dark or black. |
| Green-sensitive extraoral film is used with cassettes that have which type of intensifying screen? | Rare earth |
| All the following are true statements about phosphor storage plate (PSP) imaging system imaging plates except they | should be autoclaved. |
| The silver halide crystals are located within which of the following layers of the radiographic film? | Gelatin that suspends the emulsion |
| All of following are true statements about storage plates used with phosphor storage plate (PSP) imaging systems except that | they utilize radio frequency transmission to transmit the image to the computer via radio waves. |
| The correct order of steps in manual film processing is | develop, rinse, fix, wash. |
| Positioning instruments in digital radiography | assist in film placement and keep the patient’s fingers from being exposed. |
| The life of the processing solutions is affected by | the number of films processed. the time elapsed since last change. the size of films processed. |
| Automatic film processing requires _____ than manual film processing does. | less equipment |
Created by:
ARIGON5248