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Exam (elaborations)

EFDA Practice Questions and Correct Answers | Latest Update

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  • EFDA
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  • EFDA

In the Federation Dentaire International System for numbering, the first number represents a _________, while the second number represents a _________. quadrant, tooth What is the visible portion of the anatomical crown known as? the clinical crown The area where the roots divide furcat...

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  • October 3, 2024
  • 44
  • 2024/2025
  • Exam (elaborations)
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  • EFDA
  • EFDA
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1 | P a g e | © copyright 2024/2025 | Grade A+




EFDA Practice Questions and
Correct Answers | Latest Update
In the Federation Dentaire International System for numbering, the first

number represents a _________, while the second number represents a

_________.


✓ quadrant, tooth




What is the visible portion of the anatomical crown known as?


✓ the clinical crown




The area where the roots divide


✓ furcation




The point or area where approximating teeth in the same arch touch or meet

each other is referred to as the ________.


✓ contact area




Where are the TWO purposes of contact areas?


✓ -to keep food from packing between the teeth

-help stabilize the dental arches


Master01 | October, 2024/2025 | Latest update

, 1 | P a g e | © copyright 2024/2025 | Grade A+




Coronal to the actual division into two or more roots is a concavity that

extends to or nearly to the CEJ. This concavity is called


✓ the furrow




What is the HARDEST tissue in the body?


✓ enamel




What cells form enamel?


✓ ameloblasts




The bulk of the tooth is made up of


✓ dentin




In permanent teeth, the process of enamel formation is completed about ___

years before eruption.


✓ 3




What is the composition of enamel?




Master01 | October, 2024/2025 | Latest update

, 1 | P a g e | © copyright 2024/2025 | Grade A+

✓ 95% inorganic matter, 5% organic matter and water




What is the SECOND hardest material in the body?


✓ dentin




What is the composition of dentin?


✓ 70% inorganic, 20% organic, 10% water




The three major types of dentin


✓ primary, secondary, reparative




What type of dentin is a DEFENSE reaction to an area of injury?


✓ reparative dentin




What has the HIGHEST fluoride content of all the materialized tissue?


✓ cementum




The two types of cementum


✓ acellular and cellular




Master01 | October, 2024/2025 | Latest update

, 1 | P a g e | © copyright 2024/2025 | Grade A+

What type of cementum ACTIVELY produces new layers of cementum

throughout the life of the tooth?


✓ cellular




What teeth have the cusp of Carabelli?


✓ maxillary first molars




The ridge formed by the union of two triangular ridges


✓ transverse ridge




The spillway provides an escape for food from the _______ surface during the

mastication (chewing) process.


✓ occlusal




The uncut tooth structure adjacent to the cavity prep


✓ cavosurface




line angle


✓ two walls




Master01 | October, 2024/2025 | Latest update

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