Exam (elaborations)
EFDA BOARD EXAM QUESTIONS AND ANSWERS
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EFDA BOARD EXAM QUESTIONS AND ANSWERS
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EFDA BOARD EXAM QUESTIONS AND ANSWERSC. Enamel - Answers -Which of the following is the hardest tissue in the body?
A. Bone
B. Cementum
C. Enamel
D. Dentin
B. Inorganic - Answers -Enamel is 95-96%
A. Organic
B. Inorganic
C. Perform a therapeutic intraoral adjustment of a fixed bridge - Answers -Which of the
following is not a legal duty for an EFDA in Ohio?
A. Place medication in pulp chambers of a tooth with a devital pulp.
B. Place and remove surgical dressings.
C. Perform a therapeutic intraoral adjustment of a fixed bridge
D. Elect the shade for the fabrication of a porcelain veneer crown.
B. MN second premolar - Answers -Nam ether premolar most likely to have there cusps:
A. MN first premolar
B. MN second premolar
C. MX first premolar
D. MX second premolar
B. Within dentin for improved retention - Answers -Pins can be used during the
placement of a large restoration. Where and why are pins placed?
A. within enamel for improved retention
B. Within dentin for improved retention
C. Within enamel for increased esthetics
D. Within dentin and enamel, for improved retention
B. Decreased creep - Answers -Some amalgam brands are considered to have high
copper content. What would be the benefit of this type of amalgam?
A. Increase in gamma II phase
B. Decreased creep
C. Increased corrosion
D. Decreased delayed expansion
F. All of the above - Answers -High copper amalgam content results in:
A. Increased strength
B. Decreased corrosion
C. Decreased creep
D. Decreased gamma II
E. Only A and D
F. All of the above
,A. Large filler particles for increased strength
Conventional=Macrofilled - Answers -Composites that are considered to be
conventional have what types of qualities?
A. Large filler particles for increased strength
B. Small filler particles for increased polishability
C. Best type of composite for anterior restorations
D. Include nano fill and micro filled particles
C. In the middle to occlusal third - Answers -Where is the contact of posterior teeth
located when viewing from the buccal?
A. Just buccal to the midline
B. Just lingual to the midline
C. In the middle to occlusal third
D. In the middle to gingival third
C. Choose the composite shade, place the rubber dam, place the mylar strip - Answers
-Choose the correct order of steps when placing a class III composite with a rubber
dam:
A. Place the rubber dam, choose the composite shade, place a mylar strip
B. Choose the composite shade, place the mylar strip, place the rubber dam
C. Choose the composite shade, place the rubber dam, place the mylar strip
D. Place the rubber dam, place a mylar strip, choose the composite shade.
A. Before - Answers -Mylar strips are placed __________ acid etch.
A. Before
B. After
A. The plural floor is prepared at ideal depth - Answers -Which of the following is a
situation where a liner and/or base would not be indicated for a class II restoration?
A. The plural floor is prepared at ideal depth
B. The axial wall is concave due to the removal of extensive decay
C. There is a near pulp exposure
D. The gingival floor is subgingival
B. Unaffected by moisture when placing - Answers -All of the following are
characteristics of glass ionomers except:
A. Chemically bonds to dentin
B. Unaffected by moisture when placing
C. Releases fluoride
D. Used as a cement, base, liner or permanent restoration
D. To prevent swallowing or aspiration of the clamp - Answers -When using a clamp for
retraction, why should a floss ligature be tied to it?
A. To use to check the contact of the restoration you are placing
, B. To add in the placement and removal of the clamp
C. To prevent breakage of the clamp
D. To prevent swallowing or aspiration of the clamp
A. an overextension or flash, correct with additional carving - Answers -How would you
describe and correct a margin where the exploring point only bumps up as it passed
from tooth to restoration?
A. an overextension or flash, correct with additional carving
B. An open margin, redo the restoration
C. A submarginal area, correct with finish and polish
D. Over extension or flash, it will correct during normal occlusal forces
B. Axiobuccal - Answers -Which of the following is a line angle that would contain a
retention feature for you to condense into with a class II amalgam preparation?
A. Mesiobuccal
B. Axiobuccal
C. Mesiodistal
D. GIngivoaxial
C. Taking the final impression for an MCC (Metal ceramic crown) - Answers -Which of
the following tasks can not be delegated to efda's in Ohio?
A. Place composite restorations.
B. Placing bases and liners
C. Taking the final impression for an MCC (Metal ceramic crown)
D. Finish and plash a large cusp build up amalgam
A. Central groove - Answers -What anatomical structure on the occlusal surfaces of a
mandibular second molar connects the mesial, central and distal fossas?
A. Central groove
B. Buccal and lingual grooves
C. Triangular ridge
D. Transverse ridge
A. Between the 8 and 10 o'clock position - Answers -If you are assisting a left handed
dentist, where do you sit?
A. Between the 8 and 10 o'clock position
B. At the 12 o'clock position
C. Between 2 and 4 o'clock
D. Between 4 and 7 o'clock
A. MODB with the distobuccal cusp missing - Answers -A contra-angle matrix retainer
may be indicated when restoring which of the following MN molar preparations?
A. MODB with the distobuccal cusp missing
B. MODL with mesiolingual cusp missing
C. MODL with both lingual cusps missing
D. MOD that extends subgingival on the distal
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