POSTGRADUATE ORTHODONTIC MCQ

 

1) A steep mandibular plane angle correlate with
a) shot anterior faical vertical dimension and anterior open bite malocclusion.
b) long anterior faical vertical dimension and anterior open bite malocclusion.
c) shot anterior faical vertical dimension and anterior deep bite malocclusion.
d) long anterior faical vertical dimension and anterior deep bite malocclusion.

2) Which of the following would be indicative of maxillary retrognathism
a) an SNA angle approximately 82?
b) an SNA angle grater than 82?
c) an SNA angle less than 82?
d) non of the above.

3) Which of the following are uses for cephalometric in orthodontics
a) diagnosis.
b) analysis of treatment result.
c) longitudinal study of growth.
d) all of the above.

4) An anterior crosbite in the primry dentition is often indicative of one of the following
a) impacted maxillary permanent canine.
b) a developing class II malocclusion.
c) a developing class IIImalocclusion.
d) non of the above.

5) Dispalced teeth related to functional shifts are usually seen in the
a) posterior crossbite after prolong thumb sucking.
b) class II division I malocclusion.
c) an anterior open bite after prolong thumb sucking.
d) non of the above.

6) Which of the following is true a posterior cross bite in the mixed dentition
a) it should corrected as soon as possible.
b) it should thoroughly diagnosed as to whether it is of a dental , functional or skeletal origin.
c) may be corrected with palatal expansion.
d) all of the above.

7) Which of following cause open bite
a) tongue thrust.
b) thumb sucking.
c) genetic.
d) all of the above.

8) there are many causes why cross bites occur . one of the following not of them
a) jaw size.
b) heredity.
c) faulty restorations.
d) mouth breathing.

9) Which type of malocclusion listed below is associated with mouth breathing
a) dental open bite.
b) dental cross bite.
c) skeletal open bite.
d) skeletal cross bite.

10) Class III malocclusion is also refer to
a) retrognathism or overbite.
b) proganthism or underbite.
c) all of the above.
d) neither of above.
free count
 
 

 

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