Dental Assisting— Radiology Ch. 39,
40, 41, 42 FINAL EXAM AND ALL
CORRECT ANSWERS (2025) UPDATE.
1. Dental film holder, used to position and hold the dental x-ray films in the patient's mouth,
include: - Answer XCP and disposable block, EeZee-Grip and Endo Ray (BOTH B and C)
2. The most commonly used film size for adult intraoral dentistry is size: - Answer #2
3. The extraoral film placed outside the mouth during x-ray exposure is: - Answer Panoramic
4. 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): - Answer Intensifying
screen
5. ________________ hardens the film emulsion during film processing. - Answer Fixing
6. Developer cutoff will result in a ____________________ border. - Answer Straight white
7. All the following are true statements about image plates except they: - Answer Should be
autoclaved
8. Positioning instruments in digital radiography: - Answer Assist in film placement, keep the
patients fingers from being exposed (BOTH A and B)
9. 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
10. All the following are true statements about the emulsion on a duplicating film except that it:
- Answer Is exposed by light
11. The correct order of steps in manual film processing is: - Answer Develop, rinse, fix, wash
, 13. The life of the processing solutions is affected by: - Answer The number of films processed,
the time elapsed since last change, the size of films processed (ALL OF THE ABOVE)
14. When a film passes through fixer solutions before developing, the film will appear: - Answer
Clear
15. One reason for a lighter than normal radiograph is the: - Answer Developer solution is too
weak
16. When developer solution in an automatic processor is warmer than 83'F, the processed film
will appear: - Answer Dark or black
17. The ideal time and temperature for manual developing is: - Answer 5 minutes at 68`F
18. When loading the film into the cassette before exposure (in extraoral radiography), the: -
Answer Procedure must be done in the darkroom
19. An extraoral dental x-ray film is: - Answer More sensitive to light than intraoral film
20. Digital radiography requires less radiation than traditional radiography because the: -
Answer Sensor is more sensitive to x-ray energy
21. The Consumer Patient Radiation Health and Safety Act is a federal law that requires all: -
Answer Person who use x-rays to take dental images to be properly trained/certified (BOTH A
and B)
22. What should the dental assistant do if a patient refuses dental imaging? - Answer
Document in the patients record the fact that he or she refused recommended dental imaging,
explain to the patient the importance of dental imaging (BOTH A and B)
23. Quality assurance is a way of ensuring that everything possible is being done to produce
high-quality diagnostic images and includes quality: - Answer Administration procedures,
control tests (BOTH A and C)
24. According to the test for x-ray film freshness, the film is fresh and has been properly stored
40, 41, 42 FINAL EXAM AND ALL
CORRECT ANSWERS (2025) UPDATE.
1. Dental film holder, used to position and hold the dental x-ray films in the patient's mouth,
include: - Answer XCP and disposable block, EeZee-Grip and Endo Ray (BOTH B and C)
2. The most commonly used film size for adult intraoral dentistry is size: - Answer #2
3. The extraoral film placed outside the mouth during x-ray exposure is: - Answer Panoramic
4. 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): - Answer Intensifying
screen
5. ________________ hardens the film emulsion during film processing. - Answer Fixing
6. Developer cutoff will result in a ____________________ border. - Answer Straight white
7. All the following are true statements about image plates except they: - Answer Should be
autoclaved
8. Positioning instruments in digital radiography: - Answer Assist in film placement, keep the
patients fingers from being exposed (BOTH A and B)
9. 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
10. All the following are true statements about the emulsion on a duplicating film except that it:
- Answer Is exposed by light
11. The correct order of steps in manual film processing is: - Answer Develop, rinse, fix, wash
, 13. The life of the processing solutions is affected by: - Answer The number of films processed,
the time elapsed since last change, the size of films processed (ALL OF THE ABOVE)
14. When a film passes through fixer solutions before developing, the film will appear: - Answer
Clear
15. One reason for a lighter than normal radiograph is the: - Answer Developer solution is too
weak
16. When developer solution in an automatic processor is warmer than 83'F, the processed film
will appear: - Answer Dark or black
17. The ideal time and temperature for manual developing is: - Answer 5 minutes at 68`F
18. When loading the film into the cassette before exposure (in extraoral radiography), the: -
Answer Procedure must be done in the darkroom
19. An extraoral dental x-ray film is: - Answer More sensitive to light than intraoral film
20. Digital radiography requires less radiation than traditional radiography because the: -
Answer Sensor is more sensitive to x-ray energy
21. The Consumer Patient Radiation Health and Safety Act is a federal law that requires all: -
Answer Person who use x-rays to take dental images to be properly trained/certified (BOTH A
and B)
22. What should the dental assistant do if a patient refuses dental imaging? - Answer
Document in the patients record the fact that he or she refused recommended dental imaging,
explain to the patient the importance of dental imaging (BOTH A and B)
23. Quality assurance is a way of ensuring that everything possible is being done to produce
high-quality diagnostic images and includes quality: - Answer Administration procedures,
control tests (BOTH A and C)
24. According to the test for x-ray film freshness, the film is fresh and has been properly stored
