Orthodontics
Q1: All of the following are advantages of the indirect method of bonding brackets to a tooth over the direct
method EXCEPT one. Which one is the EXCEPTION?
A. reduced chair-side time
B. more precise location of brackets possible in the laboratory
C. controlled thickness of the resin between the tooth and the bracket interface
D. less technique sensitive
E. easier clean-up during bonding and de-bonding
F. better visualization in lab (especially for lingual brackets)
Answer: less technique sensitive
Q2: Which of the following are considered functional appliances? Select all that apply.
A. Frankel
B. Bionator
C. Clark's twin block
D. Herbst
E. activator
F. quad-helix
Answer: Frankel, Bionator, Clark's twin block, Herbst, activator
hat helix is Not
, Q3: The photograph shows a maxillary fixed bilateral space maintainer. This type of space maintainer also
is known as a:
1. If both primary canines were present, which of the following space maintainer(s) could be used in
place of this appliance that cannot be used in this case?
A. distal shoe
B. Nance appliance
C. lingual holding arch
D. Hawley retainer
E. band and loop (bilateral)
Answer: 1. Nance appliance 2. band and loop (bilateral)
Q4: A headgear appliance is used for:
A. anchorage
B. traction
C. both anchorage and traction
D. neither anchorage nor traction
Answer: both anchorage and traction
both anchorage and traction
Q1: All of the following are advantages of the indirect method of bonding brackets to a tooth over the direct
method EXCEPT one. Which one is the EXCEPTION?
A. reduced chair-side time
B. more precise location of brackets possible in the laboratory
C. controlled thickness of the resin between the tooth and the bracket interface
D. less technique sensitive
E. easier clean-up during bonding and de-bonding
F. better visualization in lab (especially for lingual brackets)
Answer: less technique sensitive
Q2: Which of the following are considered functional appliances? Select all that apply.
A. Frankel
B. Bionator
C. Clark's twin block
D. Herbst
E. activator
F. quad-helix
Answer: Frankel, Bionator, Clark's twin block, Herbst, activator
hat helix is Not
, Q3: The photograph shows a maxillary fixed bilateral space maintainer. This type of space maintainer also
is known as a:
1. If both primary canines were present, which of the following space maintainer(s) could be used in
place of this appliance that cannot be used in this case?
A. distal shoe
B. Nance appliance
C. lingual holding arch
D. Hawley retainer
E. band and loop (bilateral)
Answer: 1. Nance appliance 2. band and loop (bilateral)
Q4: A headgear appliance is used for:
A. anchorage
B. traction
C. both anchorage and traction
D. neither anchorage nor traction
Answer: both anchorage and traction
both anchorage and traction
