Fixed Appliances
The following are questions likely to be included in the final exam from the lecture about Fixed Appliances.
posted by CLEyre @ 11/20/2006 03:22:00 PM
20 comments
Monday, November 20, 2006
About Me
- Name: CLEyre
- Location: Los Angeles, California, United States
I am currently the Director of the Predoctoral Program in Pediatric Dentistry.
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20 Comments:
Which of the following is not a component of an orthodontic bracket?
a) Wire Slot
b) Tube ***
c) Tie Wing
d) Base
Brian Asbury #205
T/F
If a tooth is tilted 10 degrees to the distal and the desired orthodontic treatment is to upright the tooth so that it has no mesial/distal angulation, then the long axis of the bracket should be placed 10 degrees off of the long axis of the tooth, angled to the mesial.
FALSE
(bracket long axis should be placed in-line with the long axis of the tooth)
Justin Pfaffinger
The edgewise bracket can be used to apply which type of forces
A) Rotation
B) Torque
C) Tip/angulation
D) All of the above *****
Rick Rauth #277
The bracket is placed in the greatest curvature of the tooth in which direction
A) Incisal/gingival
B) Mesial/distal ****
C) Buccal/lingual
D) It doesn’t matter where the bracket is placed
Kevin Andrus #200
Which of the following statements is false?
a. tipping is defined as root movements in a mesial/distal direction
b. torque is defined as root movement in a buccal/lingual direction
c. mesial/distal placement of the bracket is important for tooth rotation
**d. torque is usually accomplished by changing the mesial/distal placement of the bracket.
Ryan Hodges #236
Modification of maxillary growth is more similar to tooth movement than it is to modification of mandibular growth; it is easier to control the direction of force when using mandibular restraint than it is when using maxillary restraint.
a) the first statement is true, the second statement is false ***
b) the first statement is false, the second statement is true
c) both statements are true
d) both statements are false
Michelle Phillips, #272
Recommended force magnitude for maxilla is?
a. 500gm total (250 gm per side)*
b. 100gm total
c. 5000gm total
d. 1000gm total
Mi Jin Kim #244
Important for proper rotation is _____________ positioning and for intrusion and extrusion is __________ positioning.
a. Mesio-distal, Gingivo-occlusal**
b. Gingivo-occlusal, Mesio-distal
c. angular, buccal-lingual
d. Mesio-distal, buccal-lingual
Nuri Kim, #245
Which two teeth will require thin bracket bases so that the facial surfaces of those teeth sit more buccally in the arch?
a. Canine and 2nd molar
*b. Canine and 1st molar
c. Canine and 1st premolar
d. Canine and 2nd premolar
Kristi Shamburg #290
The Gingivo-Occlusal position of the bracket contributes to:
A) Torque
B) Intrusion and Extrusion
C) Mesial and Distal Tipping
D) A and B******
E) All of the above
Niloufar Nouri-Mahdavie
#268
Heavy continuous force can damage roots and periodontium; Heavy intermittent forces are most ideal for maxillary growth modification
a. Both statements are true ***
b. Both statements are false
c. Statement 1 is true, statement 2 is false
d. Statement 2 is false, statement 2 is true
Kinberly Antrim #201
It requires approximately a ___ times greater magnitude of force to modify the maxilla than to activate tooth movement.
A. 5
B. 10 ***
C. 50
D. 100
Eddie Surger (#294)
Which of the following can be selected or adjusted to move teeth orthodontically in lieu of bending wires?
a. different types of brackets
b. location of placement of brackets
c. orientation of brackets
d. All of the ablove
Answer: d, of course
Peter Lee
#252
Which one of these is part of a bracket:
1) Wire Slot
2) Tie Wing
3) Base
4) All of the above
Ans: 4
Pejman Nasibi
#265
Which of the followings is the most ideal force used in maxillary growth modification?
a. light and continuous
b. heavy and continuous
c. heavy and intermittent**
d. light and intermittent
Le Tien Au #206
Which of the component provide force in orthodontic fixed appliance?
a) Bracket
b) Band
c) Wire *
d) all of the above
Thomas An
305
___________ applied to a wire, activates _____________ which provides the force used in orthodontics.
A. Internal force, external resistance
B. External force, internal resistance*
C. Torque, internal resistance
D. None of the above
Vivien Lao
#251
The biological process of modifying maxillary growth is comparable to tooth movement because of the similarities between maxillary sutures and the tooth ________.
A. PDL*
B. Cementum
C. Enamel
D. None of the above
Andrew Chang
#241
Change in bracket base thickness allows
for variation in the ___________
direction.
A. Incisal gingival
B. Buccal lingual***
C. Mesial Distal
D. all of the above
E. none of the above
Peter Gabbay #231
Brackets are preadjusted for all of the following except:
a) torque
b) angulation
c) post eruptive age of the tooth
d) off sets
***c is not correct
Anne Reeves
278
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