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Exam (elaborations)

EFDA Board Questions and Answers 2024/2025

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Which of the following is the hardest tissue in the body? A. Bone B. Cementum C. Enamel D. Dentin  C. Enamel Enamel is 95-96% A. Organic B. Inorganic  B. Inorganic 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...

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  • October 10, 2024
  • 43
  • 2024/2025
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  • Questions & answers
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  • EFDA
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EFDA Board Questions and Answers
2024/2025
Which of the following is the hardest tissue in the body?

A. Bone

B. Cementum

C. Enamel

D. Dentin


 C. Enamel


Enamel is 95-96%

A. Organic

B. Inorganic

 B. Inorganic


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.


 C. Perform a therapeutic intraoral adjustment of a fixed bridge


Nam ether premolar most likely to have there cusps:



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A. MN first premolar

B. MN second premolar

C. MX first premolar

D. MX second premolar


 B. MN second premolar


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. Within dentin for improved retention


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

 B. Decreased creep


High copper amalgam content results in:

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A. Increased strength

B. Decreased corrosion

C. Decreased creep

D. Decreased gamma II

E. Only A and D

F. All of the above

 F. All of the above


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

 A. Large filler particles for increased strength


Conventional=Macrofilled




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

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 C. In the middle to occlusal third


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.

 C. Choose the composite shade, place the rubber dam, place the mylar strip


Mylar strips are placed __________ acid etch.

A. Before

B. After

 A. Before


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

 A. The plural floor is prepared at ideal depth


All of the following are characteristics of glass ionomers except:


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