Removable Appliances
The following are questions likely to be included in the final exam from the lecture about Removable Appliances.
posted by CLEyre @ 11/27/2006 10:59:00 PM
16 comments
Monday, November 27, 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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16 Comments:
Which of the following functional appliances is characterized by a pin and tube configuration?
A)Activator/bionator
B)Twin block
C)Frankel appliance
D)Herbst appliance***
Richard Manwaring#257
For the Active plates, the jackscrew is activate no more than ____ a week with ____ mm per activation.
A. twice, 0.25 ***
B. once, 0.50
C. twice, 0.50
D. once, 0.25
By Alfonse Doan #223
Which of the following is FALSE about the Twin Block appliance?
a) Function is based on soft-tissue mediated modification of growth
b) Forces patient to move mandible forward to close the bite
c) Has maxillary and mandibular components
d) Is a fixed appliance ***
Michelle Phillips, #272
Invisalign works best for
a. extrusion
b. correct Class III occlusion
c. bodily movement
d. tipping ***
e. root uprighting
Jillian Boettcher #208
Which of the following cannot be achieved by an active retainers.
A) adjusting minor tooth crowding or relapse
B) simple crown tipping
C) root angulation ***
D) simple rotations
Pei Chun Hsu #239
Statement 1: Removable wraparound retainers are used in cases of extraction or cases with initial spacing.
Statement 2: There are many clasp designs for retainers with the Adams and the “C” clasp being the most popular.
E. Only statement 1 is true.
F. Only statement 2 is true.
G. Both statements 1 and 2 are true. **
H. Both statements 1 and 2 are false.
Annie Hsu
#238
All functional appliances used for treatment of Class II micrognathia work by forcing the patient to bite down in a forward position.
a. True *
b. False
Jonathan Do
222
All of the following are benefits of Invisalign treatment except:
a) It provides light orthodontic force for minor tooth movement
b) It is a clear aligner which is good for esthetics
c) It is a removable appliance so oral hygiene can be easily maintained
d) It can correct a Class III malocclusion***
Vincent Chau #213
Which of the following is NOT a contraindication to the usage of Invisalign?
a) Patient Compliance
b) Limited movement of teeth
c) Increased likelyhood of dental disturbances (eg. caries)
d) No affect on skeletal movement
e) C and B
answer= C
Marissa Faeldan #226
Which of the following groups of concepts/terms are most irrelated to one another in each choice?
A. Functional appliances: Activator/bionator. Twin block. Frankel. Herbst. MARA
B. Components of Hawley retainer: Acrylic. Hawley bow. Clasp.
C. Description of Invisalign. Trutain. Light intertainment force. Multipoint contact
D. Description of Functional Matrix theory. Bone. Soft Tissue. Pressure. Modification
E. None of the above because all of the above groups associated with each answer choice have relations
The Answer is (E).
For (A) Activator/bionator, twin block, frankel, Herbst, and MARA are all functional appliances.
(B) The listings all refer to different components of a Hawley retainer. (C) They all basically describe invisalign. (D) They all say a thing or two about the functional matrix theory.
I think this question can be a bit vague and there could likely be different interpretations
to each choice. However, this question lists the different lists in the lecture.
Jason Kung #249
Which of the following are NOT the characteristics of clear aligners?
a. heavy intermittent force
b. multi-point contact
c. flexible enough to provide orthodontic force
d. rigidity in resisting deformity
answer: a, it's light intermittent force
Peter Lee #252
All are types of tooth movements induced by removable appliances, except:
A. crown tipping
B. crown rotation
C. root translation*
D. arch expansion
Ryan Kriwanek 247
Invisalign treatment requires the dental professional to send a ___________________ impression to Invisalign Corp.
a)alginate
b)polymethylacryllate
* c)polyvinylsiloxane
d)Dexmedetomidine
Michael Capio #234
All of the following statements are true of functional appliances except...
A. they can be used to address mandibular retrognathia
B. they stretch facial muscles to bring maxilla forward***
C. the mandible is forced into a forward position
D. the mandibular function is changed to encourage its growth
Lauren Adams #198
The major uses of removable appliances are:
a.growth modification during mixed dentition
b.retention after comprehensive treatment
c.limited tooth movement
d.all of the above **
Farinaz Bokhour 209
Who proposed the functional matrix theory of growth?
a. Melvin Moss*
b. Victor Hugo Jackson
c. George Crozat
d. Clark McNamara
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