PRACTICE EXAM 100% ACCURATE
A lead apron and a thyroid collar - ANSWER must be used on all patients for all
exposures
A good technique for reducing the radiation exposure to both patient and operator is the
use of - ANSWER fast film or digital imaging
A patient is concerned with radiation exposure. You can assure him that your office
uses the ALARA concept, which includes - ANSWER reducing the number of
exposures, minimizing retakes, keeping exposure levels as low as possible
All of the following structures will appear radiolucent on dental x-ray film except -
ANSWER metal restorations
An example of cumulative radiation exposure is - ANSWER cataracts, leukemia, cancer
Anything that occupies space and has a form or shape is - ANSWER matter
Because the entire x-ray area is considered a radiation hazard area, a radiation hazard
sign must be posted in - ANSWER sight of patients, and sight of personnel
When the matter switch is on: - ANSWER the electron cloud is emitted
An extraoral dental x-ray film is: - ANSWER more sensitive to light than intraoral film
Automatic film processing requires _____than manual film processing does - ANSWER
less equipment
Dental film holders, used to position and hold the dental x-ray films in the patient's
mouth, include: - ANSWER XPC and disposable block, EeZee-Grip and EndoRay
Film speed is determined by the: - ANSWER thickness of silver bromide salt, and size
of the silver bromide crystals
The correct order of steps in manual film processing is: - ANSWER develop. rinse, fix,
wash
The extraoral film placed outside the mouth during x-ray exposure is: - ANSWER
panoramic
, The idea time and temperature for manual developing is: - ANSWER 5 minutes at 68
degrees C
The most commonly used film size for adult intraoral dentistry is size: - ANSWER #2
The purpose of the lead foil in the dental film packet is to: - ANSWER reduce film
fogging
The radiographic image is located within the ____ of the radiographic film - ANSWER
gelatin that suspends the emulsion
The recommended distance between the safelight and where the films are unwrapped
is: - ANSWER 4 feet
The safest place to store unopened boxes of dental film is in the: - ANSWER darkroom
When film emulsion interacts with x-ray, the result is: - ANSWER a latent image
When placing a dental film in the patient's mouth, the white side is placed _____ the
tube and the raised dot to the _____ - ANSWER toward; occlusal or incisal
_____ speed film is the newest and fastest film currently available - ANSWER F
When developer solution in an automatic processor is warmer than 83 degree F, the
processed film will appear - ANSWER dark or black
All the following are true statements about digitizing film-based radiographs EXCEPT: -
ANSWER it duplicates the same detail as the original film
Clear spots on a processed film can be caused by: - ANSWER fixer contacts film prior
to processing
The life of the processing solutions is affected by: - ANSWER the number of films
processed, the time elapsed since last change, and the size of films processed
One reason for a lighter than normal radiograph is the: - ANSWER developer solution is
too weak
A good protocol to follow for decreasing the contamination of dental imaging equipment
and supplies is to: - ANSWER gather all supplies needed before beginning the
procedure, use overgloves if additional supplies are needed during a procedure, ask for
help
According to the CDC Guideline for Infection Control in Dental Healthcare Setting -
2003, digital radiography sensor: - ANSWER should use FDA-cleared barriers