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Exercises for Part 3

1.  A fracture in which one side of the bone is broken and the other side is bent is a _____.

a.  Compound-comminuted fracture.
b.  Simple fracture.
c.  Greenstick fracture.
d.  Multiple fracture.

2.  A fracture that occurs in a direction that does not allow the pull of the muscles on the fractured segments to displace the segments is _____.

a.  A favorable fracture.
b.  An unfavorable fracture.

3.  Which of the following signs and symptoms of fractures is NOT a characteristic of mandibular fractures?

a.  Paresthesia.
b.  Ecchymosis.
c.  Malocclusion.
d.  Step defect.
e.  Nose bleed.

 Special instructions for exercises 4 through 10. Match the classification (name) of the fracture in Column B to its description in Column A.

Column A Column B
___ 4. Two or more fractures occurring in the same or different bones

a. Simple fracture

___ 5. The hard cortical bone of one fragment is driven into the softer cancellous bone of another fragment

 b. Compound fracture

___ 6. The bone is broken and splintered into three or more fragments or is crushed

c. Comminuted fracture

___ 7. A break in the bone that does not produce an open wound in the skin

d. Depressed fracture

___ 8. A break without external violence at an area of the bone that has been weakened by a local disease.

e. Impacted fracture

___ 9.  The fractured part is driven below the normal level of the bone

 f. Pathologic fracture

___ 10.  A break in the bone with an external wound extending to the bone.

g. Multiple fracture

11.  Fixation is accomplished by drilling holes on either side of the fracture and using wire or metal plates to hold the segments in close approximation in _____.

a.  a closed reduction
b.  an opened reduction

12.  It is necessary to immobilize a fracture of the jaw for_____ to_____ weeks until a union between the bony parts takes place.

 13.  When there is post-operative intermaxillary fixation, a dental liquid or soft diet is used that provides the nutrients necessary for the healing of fractured bones. This diet is a:

a.  High protein, high carbohydrate diet.
b.  Low protein, low carbohydrate diet.
c.  Low protein, high carbohydrate diet.
d.  High protein, low carbohydrate diet.

14.  A dental specialist is called to assist a person who has a dislocated jaw. What action should he/she take? Immediately look for a_____ and_____ person (such as a_____   ) to restore the joint to its normal position.

15.  When a trained person is trying to restore a dislocated jaw to its normal position, it is essential to prevent the_____ from being traumatically fractured.

 16. The figure below illustrates:

a.  Fractures of the edentulous mandible.
b.  A fracture of the subcondylar area of the mandible.
c.  A fracture of the body of the mandible.
d.  Fractures of the body and the angle of the opposite side.
e.  Fractures of the alveolar process.

17. The figure below illustrates a:

a.  Pyramidal fracture of the maxilla.
b.  Transverse fracture of the maxilla.
c.  Fracture of the maxillary alveolar process.
d.  Cranio-facial disjunction fracture.
e.  Fracture of the maxilla.


Solutions to Exercises for Part 3

1.  c
2.  a
3.  e
4.  g
5.  e
6.  c
7.  a
8.   f
9.  d
10.  b
11.  b
12.  six; eight
13.  a
14.  trained; experienced; dental officer
15.  anterior teeth
16.   d
17.   b

David L. Heiserman, Editor

Copyright   SweetHaven Publishing Services
All Rights Reserved

Revised: June 06, 2015