Dental Assisting Radiology Practice
Exam Graded A+
_____ speed film is the newest and fastest film currently available - ANSWER-F
A dark radiolucent shadow that obscures the anterior teeth can indicate that the
patient's: - ANSWER-lips were not closed on the bite-block during the exposure
A ghost image will appear ____than normal and on the ____side of the image -
ANSWER-larger; opposite
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
A good technique for reducing the radiation exposure to both patient and operator is the
use of - ANSWER-fast film or digital imaging
A lead apron and a thyroid collar - ANSWER-must be used on all patients for all
exposures
A panoramic image allows the dentist to: - ANSWER-detect caries, view the entire
dentition and related structures in one film
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
A patient wearing earrings or glasses must remove them before a panoramic x-ray
image exposure, otherwise, a ___ will appear on the image - ANSWER-blurred area
and a ghost image
A periapical view shows the tooth from the occlusal surface or incisal edge to the: -
ANSWER-approximately 2 to 3 mm beyond the apex
A radiographic mount should always be labeled with the: - ANSWER-patient's name and
the date the images were exposed
According to the CDC Guideline for Infection Control in Dental Healthcare Setting -
2003, digital radiography sensor: - ANSWER-should use FDA-cleared barriers
Advantages of panoramic imaging include which of the following? - ANSWER-The
entire maxilla and mandible are seen on one image
, It is easy and quick to learn how to expose a panoramic image
Patients prefer panoramic images and are exposed to less radiation
Advantages of panoramic imaging, when contrasted with intraoral imaging, include: -
ANSWER-less radiation exposure
All of the following statements about panoramic imaging are true except: - ANSWER-the
digital panoramic unit uses film that has to be processed
All of the following statements about the panoramic tubehead are true Except: -
ANSWER-the tubehead rotates the film behind the patient's head
All of the following structures will appear radiolucent on dental x-ray film except -
ANSWER-metal restorations
All the following are true statements about digitizing film-based radiographs EXCEPT: -
ANSWER-it duplicates the same detail as the original film
All the following are true statements regarding the preparation of the operatory for
dental imaging Except: - ANSWER-barriers should be used on all surfaces that cannot
be easily cleaned and disinfected
An anterior set of images includes: - ANSWER-canines and incisors
An example of cumulative radiation exposure is - ANSWER-cataracts, leukemia, cancer
An extraoral dental x-ray film is: - ANSWER-more sensitive to light than intraoral film
Anything that occupies space and has a form or shape is - ANSWER-matter
Automatic film processing requires _____than manual film processing does - ANSWER-
less equipment
Basic principles of the bitewing technique include the: - ANSWER-film sensor is placed
parallel to the crowns of the teeth
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
Calibration of dental x-ray equipment should be performed by: - ANSWER-a qualified
technician
Chronic radiation exposure occurs when _______ dose of radiation is received over a
_______time period - ANSWER-small; long
Exam Graded A+
_____ speed film is the newest and fastest film currently available - ANSWER-F
A dark radiolucent shadow that obscures the anterior teeth can indicate that the
patient's: - ANSWER-lips were not closed on the bite-block during the exposure
A ghost image will appear ____than normal and on the ____side of the image -
ANSWER-larger; opposite
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
A good technique for reducing the radiation exposure to both patient and operator is the
use of - ANSWER-fast film or digital imaging
A lead apron and a thyroid collar - ANSWER-must be used on all patients for all
exposures
A panoramic image allows the dentist to: - ANSWER-detect caries, view the entire
dentition and related structures in one film
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
A patient wearing earrings or glasses must remove them before a panoramic x-ray
image exposure, otherwise, a ___ will appear on the image - ANSWER-blurred area
and a ghost image
A periapical view shows the tooth from the occlusal surface or incisal edge to the: -
ANSWER-approximately 2 to 3 mm beyond the apex
A radiographic mount should always be labeled with the: - ANSWER-patient's name and
the date the images were exposed
According to the CDC Guideline for Infection Control in Dental Healthcare Setting -
2003, digital radiography sensor: - ANSWER-should use FDA-cleared barriers
Advantages of panoramic imaging include which of the following? - ANSWER-The
entire maxilla and mandible are seen on one image
, It is easy and quick to learn how to expose a panoramic image
Patients prefer panoramic images and are exposed to less radiation
Advantages of panoramic imaging, when contrasted with intraoral imaging, include: -
ANSWER-less radiation exposure
All of the following statements about panoramic imaging are true except: - ANSWER-the
digital panoramic unit uses film that has to be processed
All of the following statements about the panoramic tubehead are true Except: -
ANSWER-the tubehead rotates the film behind the patient's head
All of the following structures will appear radiolucent on dental x-ray film except -
ANSWER-metal restorations
All the following are true statements about digitizing film-based radiographs EXCEPT: -
ANSWER-it duplicates the same detail as the original film
All the following are true statements regarding the preparation of the operatory for
dental imaging Except: - ANSWER-barriers should be used on all surfaces that cannot
be easily cleaned and disinfected
An anterior set of images includes: - ANSWER-canines and incisors
An example of cumulative radiation exposure is - ANSWER-cataracts, leukemia, cancer
An extraoral dental x-ray film is: - ANSWER-more sensitive to light than intraoral film
Anything that occupies space and has a form or shape is - ANSWER-matter
Automatic film processing requires _____than manual film processing does - ANSWER-
less equipment
Basic principles of the bitewing technique include the: - ANSWER-film sensor is placed
parallel to the crowns of the teeth
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
Calibration of dental x-ray equipment should be performed by: - ANSWER-a qualified
technician
Chronic radiation exposure occurs when _______ dose of radiation is received over a
_______time period - ANSWER-small; long
