Dental Assistant Practice Exam-
Dental Radiography Questions And
Actual Answers (2025-2026) Edition.
What type of film allows the entire dentition to be viewed on a single film? - Answer
Panoramic
Which of the following is not a main component of panoramic x-ray unit? - Answer Panoramic
film
What type of device does digital radiography use to record images taken of the patient's teeth?
- Answer Electronic sensor
Which of the following inflicts the most radiation on a patient? - Answer FMX
What step helps large radiolucent the palate as seen on panoramic x-rays? - Answer Having
the patient place their tongue in the roof of their mouth
Why does digital radiography require less radiation than traditional x-rays? - Answer Sensors
are more sensitive
Digital x-ray sensors: - Answer Intraoral are waterproofed by the manufacturer, but because
they cannot be sterilized they must have a disposable barrier placed on them prior to use with
each patient.
What technique is the preferred exposure method for digital sensors? - Answer Paralleling
Which of the following is not an advantage in regards to digital x-ray sensors? - Answer Sensor
size
Which of the following is NOT part of a film packet? - Answer Inner wrap
What makes it possible to produce duplicate sets of radiographs without additional radiation or
, What size film is appropriate for use as a PA on an upper incisor? - Answer 1
What use is a size 2 film most appropriate for? - Answer Posterior PAs and Adult BWX
Which of the following is one of the basic techniques for obtaining x-rays? - Answer Paralleling
What technique places film in line with the long axis of the teeth to be radiographed? - Answer
Paralleling
When using the paralleling technique, in what direction is the x-ray beam aimed? - Answer 90
degrees
Which of the following requires the use of a film-holding instrument? - Answer Paralleling
technique
When placing a film in a PID, which of the following is correct? - Answer The raised dot should
face the PID and toward the occlusal surface
What is the position on the patient's face where the central x-ray beam is aimed? - Answer
Point of entry
What angulation must be perpendicular to the film and long axis of the teeth using the
paralleling technique? - Answer Vertical
Failing to have the x-ray beam in a perpendicular position in a paralleling technique will result
in: - Answer Foreshortening and Elongation
What will cause overlapping of proximal contacts? - Answer Improper horizontal angulation
In bisecting the angle, which of the following is NOT true? - Answer The film is placed at 30
degrees from the long axis of the tooth and the angle between is bisected
What occurs when the x-ray beam is not centered with the xray film? - Answer Cone cutting
Dental Radiography Questions And
Actual Answers (2025-2026) Edition.
What type of film allows the entire dentition to be viewed on a single film? - Answer
Panoramic
Which of the following is not a main component of panoramic x-ray unit? - Answer Panoramic
film
What type of device does digital radiography use to record images taken of the patient's teeth?
- Answer Electronic sensor
Which of the following inflicts the most radiation on a patient? - Answer FMX
What step helps large radiolucent the palate as seen on panoramic x-rays? - Answer Having
the patient place their tongue in the roof of their mouth
Why does digital radiography require less radiation than traditional x-rays? - Answer Sensors
are more sensitive
Digital x-ray sensors: - Answer Intraoral are waterproofed by the manufacturer, but because
they cannot be sterilized they must have a disposable barrier placed on them prior to use with
each patient.
What technique is the preferred exposure method for digital sensors? - Answer Paralleling
Which of the following is not an advantage in regards to digital x-ray sensors? - Answer Sensor
size
Which of the following is NOT part of a film packet? - Answer Inner wrap
What makes it possible to produce duplicate sets of radiographs without additional radiation or
, What size film is appropriate for use as a PA on an upper incisor? - Answer 1
What use is a size 2 film most appropriate for? - Answer Posterior PAs and Adult BWX
Which of the following is one of the basic techniques for obtaining x-rays? - Answer Paralleling
What technique places film in line with the long axis of the teeth to be radiographed? - Answer
Paralleling
When using the paralleling technique, in what direction is the x-ray beam aimed? - Answer 90
degrees
Which of the following requires the use of a film-holding instrument? - Answer Paralleling
technique
When placing a film in a PID, which of the following is correct? - Answer The raised dot should
face the PID and toward the occlusal surface
What is the position on the patient's face where the central x-ray beam is aimed? - Answer
Point of entry
What angulation must be perpendicular to the film and long axis of the teeth using the
paralleling technique? - Answer Vertical
Failing to have the x-ray beam in a perpendicular position in a paralleling technique will result
in: - Answer Foreshortening and Elongation
What will cause overlapping of proximal contacts? - Answer Improper horizontal angulation
In bisecting the angle, which of the following is NOT true? - Answer The film is placed at 30
degrees from the long axis of the tooth and the angle between is bisected
What occurs when the x-ray beam is not centered with the xray film? - Answer Cone cutting
