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تحميل الدليل التدريبي

أسئلة شائعة




  1. The space distal to the mandibular deciduous canines is referred to as: 
    1. Leeway space
    2. Freeway space
    3. Primate space
    4. Diastema


  1. In a typical serial extraction protocol, the purpose of the following extraction step is: 

a.            To speed up the eruption of the permanent canines

b.           To allow mesial drift of the first deciduous molars

c.            To allow for spontaneous alignment of incisors

d.           To avoid midline shift


  1. The underlying cause of the following type of malocclusion is: 

a.          Dentoalveolar due to buccally flared upper molars and lingually tipped lower molars

b.          Skeletal due to narrow maxilla and/or wide mandible

c.          Soft tissue due to high tongue position

d.         Crowding in the upper arch and spacing in the lower arch


  1. A child presented to you with premature loss of upper right primary second molar before the eruption of upper right permanent first molar. The appliance of choice to be prescribed for this patient would be:


    1. Band and loop space maintainer
    2. Nance holding arch
    3. Transpalatal arch
    4. Distal shoe space maintainer

5.      Your management of the ectopic eruption of the upper right first permanent molar shown in this radiograph might include all of the following EXCEPT:

    1. Extraction of upper right deciduous second molar
    2. Nance holding arch
    3. Separating elastic between upper right first permanent molar and upper right deciduous second molar
    4. Observation period to allow for self correction


  1. The archwire that would be the LEAST suitable for initial alignment of crowded dentition is:  
    1. 0.014 diameter stainless steel
    2. 0.020 diameter stainless steel
    3. Stainless steel with loops
    4. Nickel-titanium (Ni-Ti) 


  1. At what age did the child depicted in this graph experience the most rapid growth?

    1. First year after birth
    2. Mid-childhood (6-8)
    3. Early adolescence (13-14)
    4. Late adolescence (17-18)


  1. What is the MOST LIKELY permanent molar relation that will develop from the primary second molar occlusion shown here?
    1. Class I
    2. Class II
    3. Class III
    4. Class IV


  1. How would you describe the soft tissue profile that would most likely be associated with the figure?


    1. Concave
    2. Convex
    3. Rectilinear
    4. Straight


  1. Classify the following malocclusion according to Angle’s classification:

a.       Class I

b.      Class II division 1

c.       Class II division 2

d.      Class III


  1. Angle’s classification of occlusion consists of:

 A. Three classes

B. Four classes

C. Five classes

D. Three classes and two divisions


  1. Maxilla is formed through:


A. Endochondral bone formation

B. Intramembranous bone formation

C. Remodeling

D. Combination of endochondral and intramembranous bone formation

13.  In panoramic radiography, the image of the upper cervical vertebrae and the base of the skull should ideally appear:


A. Superimposed over the anterior mandible

B. Superimposed over the anterior maxilla

C. On each side of the image not superimposed over the jawbones

D. Should not appear at all on the panoramic image


14.    The following are the advantages of small group teaching method EXCEPT:


A. The students can express themselves

B. The students can establish closer contact with academic staff

C. Better chance to present own  ideas

D. One student dominating the whole group


15.  Regarding the submandibular salivary gland, the following statement is TRUE:


A. Its secretomotor fibers originate from facial nerve

B. Its duct opens in the vestibule of the mouth

C. It is a rare site for calculus formation

D. Hypoglossal nerve has close relation with its duct

E. Its deep part lies deep to the hyoglossus muscle


16.  For retention of deep bite correction, It is recommended to use:


A. Regular Hawley  retainer

B. Fixed retainer only

C. Upper removable HR with bite plate

D. Fiberctomy then Essix retainer


17.  Serial extraction applies to patients who meet the following criteria:


A. Skeletal CL II Dental CL I malocclusion with severe crowding more than10 mm

B. CL I malocclusion with severe overjet more than 10 mm

C. Skeletal CL I and dental CL II div.I with severe crowding more than10 mm

D. CL I malocclusion with severe deep bite

E. Skeletal & Dental CL I malocclusion with severe crowding more than10 mm


18.  In the long bones of the extremities, areas of ossification appear in the center

and at the ends, the bony cap on each end of a long bone is called the:


A. Epiphysis

B. Diaphysis

C. Epiphysial plate

D. Bony wedge

19.  Trauma to primary incisor teeth often leads to:


A. Dilaceration of the roots of primary incisors

B. Dilaceration of the roots of underlying permanent incisors

C. Ankylosis of underlying permanent incisors

D. Non vital permanent incisors


20.  Removal of residual bonding resin after debanding can be best done by:


A. Diamond bur

B. A 12-fluted carbide bur

C. Scaler

D. Debonding plier



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