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Efda board exam Questions and Correct
Answers
zinc oxide eugenol Ans: This material is obundent
Glass ionomer Ans: Releases fluoride,can be used as a liner, base,
cement and final restoration. Chemically bonds directly to enamel,
Dentin, cementum, and stainless steel
What is the correct placement of material for restoring a deep
amalgam restoration? Ans: Calcium hydroxide, copal varnish,
zinc phosphate and amalgam
To prevent sensitivity Ans: Avoid desiccation of the dentin
What part of the matrix retainer is a box shaped devise at the
lower end of the retainer that has an opening for the threaded
spindle to move in and out? Ans: Nut
© 2025 All rights reserved
, 2 | Page
The purpose of a wedge is? Ans: To adapt the band to the
cervical region of the tooth and endure teeth don't bond together
What could result if a matrix band is placed to snug around a
tooth with a class to preparation? Ans: Voids in the proximal box
What is attrition? Ans: The gradual loss of tooth structure along
the biting surface due to a Occlusal wear
The purpose of acid etching enamel before placing a sealant resin
is to Ans: Create micropores into which the sealant will flow to
form a mechanical Bond
Which material can be used as a temporary filling material Ans:
ZOE
What is a point angle Ans: A point formed by the junction of
three walls within a cavity preparation
Which of the following best describes a class 11 restoration Ans:
proximal surface of posterior teeth
© 2025 All rights reserved
Efda board exam Questions and Correct
Answers
zinc oxide eugenol Ans: This material is obundent
Glass ionomer Ans: Releases fluoride,can be used as a liner, base,
cement and final restoration. Chemically bonds directly to enamel,
Dentin, cementum, and stainless steel
What is the correct placement of material for restoring a deep
amalgam restoration? Ans: Calcium hydroxide, copal varnish,
zinc phosphate and amalgam
To prevent sensitivity Ans: Avoid desiccation of the dentin
What part of the matrix retainer is a box shaped devise at the
lower end of the retainer that has an opening for the threaded
spindle to move in and out? Ans: Nut
© 2025 All rights reserved
, 2 | Page
The purpose of a wedge is? Ans: To adapt the band to the
cervical region of the tooth and endure teeth don't bond together
What could result if a matrix band is placed to snug around a
tooth with a class to preparation? Ans: Voids in the proximal box
What is attrition? Ans: The gradual loss of tooth structure along
the biting surface due to a Occlusal wear
The purpose of acid etching enamel before placing a sealant resin
is to Ans: Create micropores into which the sealant will flow to
form a mechanical Bond
Which material can be used as a temporary filling material Ans:
ZOE
What is a point angle Ans: A point formed by the junction of
three walls within a cavity preparation
Which of the following best describes a class 11 restoration Ans:
proximal surface of posterior teeth
© 2025 All rights reserved
