Fracture Mandible

FRACURE MANDIBLE:

1). In the symphysis # medial displacement is due to

   a) Mylohyoid muscle.

   b) Muscles attached to the genial tubercles.

   c) Hyoglossus.

   d) Both a and b.

ANS: D

2). All are true except

   a) Presence of teeth on the proximal segment of # line reduces chances of displacement.

   b) Severe tear of musculature and overlying soft tissues permit wider displacement.

   c) There is more displacement of #ed segment in ramus # than in the # of the body of mandible.

   D0 Direction of  # line has effect on displacement..

ANS: C

3). Closed reduction is not indicated in

   a) Nondisplaced favourable #.

   b) Soft tissue overlying the # site.

   c) Coronoid process #.

   d) Severely atrophic edentulous mandible.

ANS:b

4). Ideal t/t of #  of angle of mandible is

   a) Transosseous wiring.

   b) Intermaxillary fixation.

   c) Plating on lateral side of body of mandible.

   d) Plating at the inferior border of mandible.

ANS: D

5). Displaced mandibular fracture in a child should be managed by

   a) Circum mandibular wiring.

   b) Early mobilization.

   c) Intermaxilary fixation.

   d) Transosseous wiring.

ANS: B

6). Deviation of the mandible to the right side may suggest

   a) # of left condyle.

   b) Hyperplasia of right condyle.

   c) Hyperplasia of left condyle.

   d) # of right condyle.

ANS: D

7). Anterior open bite is seen in

a)      Unilateral condylar #.

b)      Bilateral condylar #

c)      Maxillary #

d)     Coronoid #

       ANS: B

8). Fracture above the level of lateral pterygoid muscle

a)      Exhibits displacement.

b)      Teeth do not come to occlude on affected side

c)      They may be associated with severe pain.

d)     Both (b)and(c).

       ANS: D

      9). Condition where healed # is malpositioned but functionally accept is called

a)      Dysarthrosis

b)      Meta arthrosis

c)      Pseudo arthrosis

d)     None of the above

ANS: B