RDA EXAM #6
1. A DA may not apply:
Correct Answer: spray
2. 88L forceps are used to extract tooth number_____.:
Correct Answer: 14
3. Which of the following would you choose to loosen a retained root
during an extraction?
Correct Answer: Elevator
4. What is an established guide to professional behavior?
Correct Answer: code of ethics
5. Which of the following is NOT true of dental inlays?
Correct Answer: They are suitable candidates to anchor prosthetics
6. Vasoconstrictors:
Correct Answer: Chemical that shrinks the capillaries in the tissues
temporarily decreasing blood flow to an area
7. Which of the following instruments would you choose to open a
tooth for endodontic treatment?
Correct Answer: Round bur
8. An "isolation of the hazard" is BEST represented by which of the
following?
,Correct Answer: Safety needles
9. The site most often used when obtaining a patient's pulse is the:
Correct Answer: Radial artery
10. Waterlines require special cleaning and disinfection because
Correct Answer: Biofilm is highly resistant and can amplify the bacteria in
water
11. For which of the following procedures would you choose a
diamond bur wheel?
Correct Answer: Reducing the lingual aspect of the anterior teeth during
crown preparation
12. The cabinet or room where nitrous oxide is stored must have at
least ___ square inches of vent area.
Correct Answer: 72
13. Overjet is the abnormal horizontal overlapping of the maxillary
teeth to the mandibular teeth:
Correct Answer: True
14. Which of the following are not visible in a periapical x-ray?
Correct Answer: TMJ disorders
15. When cleaning tanks or metal parts of the automatic processor,
do not use:
Correct Answer: Steel wool
, 16. Which of the following should you use to scale the majority of
the surface of a tooth when removing calculus?
Correct Answer: Oblique stroke
17. Which of the following is the LARGEST size of tapered fissure
cross-cut
bur?
Correct Answer: 703
18. A gold crown has just been completed. How should it be marked
in the patient's chart?
Correct Answer: Outlined in blue, with diagonal lines
19. After about a year, when the gum and bone tissue have healed
from
orthodontic treatment, retainers are then worn:
Correct Answer: Two or three nights a week
20. How long does it take for materia alba to form after its removal?
Correct Answer: It depends on the circumstances
21. The dental assistant may:
Correct Answer: 1. remove archwires
2. remove ligatures (elastic ligature)
22. Clear spots are most likely caused by which of the following?
Correct Answer: Fixer stain
1. A DA may not apply:
Correct Answer: spray
2. 88L forceps are used to extract tooth number_____.:
Correct Answer: 14
3. Which of the following would you choose to loosen a retained root
during an extraction?
Correct Answer: Elevator
4. What is an established guide to professional behavior?
Correct Answer: code of ethics
5. Which of the following is NOT true of dental inlays?
Correct Answer: They are suitable candidates to anchor prosthetics
6. Vasoconstrictors:
Correct Answer: Chemical that shrinks the capillaries in the tissues
temporarily decreasing blood flow to an area
7. Which of the following instruments would you choose to open a
tooth for endodontic treatment?
Correct Answer: Round bur
8. An "isolation of the hazard" is BEST represented by which of the
following?
,Correct Answer: Safety needles
9. The site most often used when obtaining a patient's pulse is the:
Correct Answer: Radial artery
10. Waterlines require special cleaning and disinfection because
Correct Answer: Biofilm is highly resistant and can amplify the bacteria in
water
11. For which of the following procedures would you choose a
diamond bur wheel?
Correct Answer: Reducing the lingual aspect of the anterior teeth during
crown preparation
12. The cabinet or room where nitrous oxide is stored must have at
least ___ square inches of vent area.
Correct Answer: 72
13. Overjet is the abnormal horizontal overlapping of the maxillary
teeth to the mandibular teeth:
Correct Answer: True
14. Which of the following are not visible in a periapical x-ray?
Correct Answer: TMJ disorders
15. When cleaning tanks or metal parts of the automatic processor,
do not use:
Correct Answer: Steel wool
, 16. Which of the following should you use to scale the majority of
the surface of a tooth when removing calculus?
Correct Answer: Oblique stroke
17. Which of the following is the LARGEST size of tapered fissure
cross-cut
bur?
Correct Answer: 703
18. A gold crown has just been completed. How should it be marked
in the patient's chart?
Correct Answer: Outlined in blue, with diagonal lines
19. After about a year, when the gum and bone tissue have healed
from
orthodontic treatment, retainers are then worn:
Correct Answer: Two or three nights a week
20. How long does it take for materia alba to form after its removal?
Correct Answer: It depends on the circumstances
21. The dental assistant may:
Correct Answer: 1. remove archwires
2. remove ligatures (elastic ligature)
22. Clear spots are most likely caused by which of the following?
Correct Answer: Fixer stain
