CDC 4Y051 Set O vol 3- Test Questions
& Answers
1. (408) All of the following are part of the standard extraoral series taken at the beginning of
orthodontic treatment except
a. Straight profile from the left lateral view and full-face frontal view.
b. A view directly in front of the patient with the patient's teeth visible.
c. Straight profile from the right lateral view and full-face frontal view.
d. A view directly in front of the patient with the patient's teeth no visible. Correct Ans-a.
Straight profile from the left lateral view and full-face frontal view
2. (408) Following examination, diagnosis, and treatment presentation, fixed orthodontic
treatment usually begins with the
a. extraoral headgear.
b. placement of bands.
c. placement of elastic ligation.
d. placement of orthodontic separators Correct Ans-d. placement of orthodontic separators
3. (408) Which basic step is not required for orthodontic bonding?
a. Placement of orthodontic brackets and cleanup of any excess material.
b. Identification and selection of orthodontic brackets for the patient.
c. Isolation and preparation of the teeth for bonding.
,d. Trial sizing and rebonding of loose brackets. Correct Ans-d. Trial sizing and rebonding of
loose brackets.
4. (408) Placement of orthodontic bands requires all of the following steps except
a. acid etch and bonding.
b. band selection and trial sizing.
c. band cementation and cleanup.
d. separation using elastic or spring separators. Correct Ans-a. acid etch and bonding
5. (408) When is the orthodontic patient usually scheduled for adjustments, after placement and
ligation of the arch wires?
a. 1 to 2 weeks.
b. 3 to 4 weeks.
c. 5 to 6 weeks.
d. 7 to 8 weeks. Correct Ans-b. 3 to 4 weeks
6. (408) How should you check for loose bands at each orthodontic adjustment appointment?
a. Visually inspect and run your finger across the bands.
b. Place the end of a scaler on the gingival edge of the band and tug lightly in the apical
direction.
c. Place the end of a scaler on the gingival edge of the band and tug lightly in the occlusal
direction.
, d. Place the pin and ligature cutter on the gingival edge of the band and tug lightly in the occlusal
direction. Correct Ans-c. Place the end of a scaler on the gingival edge of the band and tug
lightly in the occlusal
direction.
7. (408) Following removal of fixed orthodontic appliances, how long does the dentist usually
recommend the wear of a retainer?
a. Only at night for 3 to 6 months.
b. Only at night for 6 months to a year.
c. A full time basis for 3 to 6 months.
d. A full time basis for 6 months to a year. Correct Ans-d. A full time basis for 6 months to a
year
8. (408) What type of removable orthodontic appliance can be designed to accomplish tooth
movement and retention functions?
a. Hawley.
b. Activators.
c. Active retainer.
d. Orthodontic positioners. Correct Ans-a. Hawley
9. (408) The items you should have available at the time of removable orthodontic appliance
delivery are a mouth mirror, some articulating paper and a holder, an acrylic bur and a handpiece,
some
& Answers
1. (408) All of the following are part of the standard extraoral series taken at the beginning of
orthodontic treatment except
a. Straight profile from the left lateral view and full-face frontal view.
b. A view directly in front of the patient with the patient's teeth visible.
c. Straight profile from the right lateral view and full-face frontal view.
d. A view directly in front of the patient with the patient's teeth no visible. Correct Ans-a.
Straight profile from the left lateral view and full-face frontal view
2. (408) Following examination, diagnosis, and treatment presentation, fixed orthodontic
treatment usually begins with the
a. extraoral headgear.
b. placement of bands.
c. placement of elastic ligation.
d. placement of orthodontic separators Correct Ans-d. placement of orthodontic separators
3. (408) Which basic step is not required for orthodontic bonding?
a. Placement of orthodontic brackets and cleanup of any excess material.
b. Identification and selection of orthodontic brackets for the patient.
c. Isolation and preparation of the teeth for bonding.
,d. Trial sizing and rebonding of loose brackets. Correct Ans-d. Trial sizing and rebonding of
loose brackets.
4. (408) Placement of orthodontic bands requires all of the following steps except
a. acid etch and bonding.
b. band selection and trial sizing.
c. band cementation and cleanup.
d. separation using elastic or spring separators. Correct Ans-a. acid etch and bonding
5. (408) When is the orthodontic patient usually scheduled for adjustments, after placement and
ligation of the arch wires?
a. 1 to 2 weeks.
b. 3 to 4 weeks.
c. 5 to 6 weeks.
d. 7 to 8 weeks. Correct Ans-b. 3 to 4 weeks
6. (408) How should you check for loose bands at each orthodontic adjustment appointment?
a. Visually inspect and run your finger across the bands.
b. Place the end of a scaler on the gingival edge of the band and tug lightly in the apical
direction.
c. Place the end of a scaler on the gingival edge of the band and tug lightly in the occlusal
direction.
, d. Place the pin and ligature cutter on the gingival edge of the band and tug lightly in the occlusal
direction. Correct Ans-c. Place the end of a scaler on the gingival edge of the band and tug
lightly in the occlusal
direction.
7. (408) Following removal of fixed orthodontic appliances, how long does the dentist usually
recommend the wear of a retainer?
a. Only at night for 3 to 6 months.
b. Only at night for 6 months to a year.
c. A full time basis for 3 to 6 months.
d. A full time basis for 6 months to a year. Correct Ans-d. A full time basis for 6 months to a
year
8. (408) What type of removable orthodontic appliance can be designed to accomplish tooth
movement and retention functions?
a. Hawley.
b. Activators.
c. Active retainer.
d. Orthodontic positioners. Correct Ans-a. Hawley
9. (408) The items you should have available at the time of removable orthodontic appliance
delivery are a mouth mirror, some articulating paper and a holder, an acrylic bur and a handpiece,
some
