EFDA Practice Questions /
Comprehensive Practice Questions /
Study Guide Exam / Newest Actual
Questions & Answers (A+ Guide
Solution)
Qs: In the Federation Dentaire International System for numbering, the
first number represents a _________, while the second number represents a
_________. -
Answer:
quadrant, tooth
Qs: What is the visible portion of the anatomical crown known as? -
Answer:
the clinical crown
Qs: The area where the roots divide -
Answer:
furcation
Qs: The point or area where approximating teeth in the same arch touch
or meet each other is referred to as the ________. -
Answer:
contact area
Qs: Where are the TWO purposes of contact areas? -
Page 1 of 41
,Answer:
-to keep food from packing between the teeth
-help stabilize the dental arches
Qs: 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 -
Answer:
the furrow
Qs: What is the HARDEST tissue in the body? -
Answer:
enamel
Qs: What cells form enamel? -
Answer:
ameloblasts
Qs: The bulk of the tooth is made up of -
Answer:
dentin
Qs: In permanent teeth, the process of enamel formation is completed
about ___ years before eruption. -
Answer:
3
Qs: What is the composition of enamel? -
Page 2 of 41
,Answer:
95% inorganic matter, 5% organic matter and water
Qs: What is the SECOND hardest material in the body? -
Answer:
dentin
Qs: What is the composition of dentin? -
Answer:
70% inorganic, 20% organic, 10% water
Qs: The three major types of dentin -
Answer:
primary, secondary, reparative
Qs: What type of dentin is a DEFENSE reaction to an area of injury? -
Answer:
reparative dentin
Qs: What has the HIGHEST fluoride content of all the materialized tissue?
-
Answer:
cementum
Qs: The two types of cementum -
Answer:
acellular and cellular
Page 3 of 41
, Qs: What type of cementum ACTIVELY produces new layers of cementum
throughout the life of the tooth? -
Answer:
cellular
Qs: What teeth have the cusp of Carabelli? -
Answer:
maxillary first molars
Qs: The ridge formed by the union of two triangular ridges -
Answer:
transverse ridge
Qs: The spillway provides an escape for food from the _______ surface
during the mastication (chewing) process. -
Answer:
occlusal
Qs: The uncut tooth structure adjacent to the cavity prep -
Answer:
cavosurface
Qs: line angle -
Answer:
two walls
Page 4 of 41
Comprehensive Practice Questions /
Study Guide Exam / Newest Actual
Questions & Answers (A+ Guide
Solution)
Qs: In the Federation Dentaire International System for numbering, the
first number represents a _________, while the second number represents a
_________. -
Answer:
quadrant, tooth
Qs: What is the visible portion of the anatomical crown known as? -
Answer:
the clinical crown
Qs: The area where the roots divide -
Answer:
furcation
Qs: The point or area where approximating teeth in the same arch touch
or meet each other is referred to as the ________. -
Answer:
contact area
Qs: Where are the TWO purposes of contact areas? -
Page 1 of 41
,Answer:
-to keep food from packing between the teeth
-help stabilize the dental arches
Qs: 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 -
Answer:
the furrow
Qs: What is the HARDEST tissue in the body? -
Answer:
enamel
Qs: What cells form enamel? -
Answer:
ameloblasts
Qs: The bulk of the tooth is made up of -
Answer:
dentin
Qs: In permanent teeth, the process of enamel formation is completed
about ___ years before eruption. -
Answer:
3
Qs: What is the composition of enamel? -
Page 2 of 41
,Answer:
95% inorganic matter, 5% organic matter and water
Qs: What is the SECOND hardest material in the body? -
Answer:
dentin
Qs: What is the composition of dentin? -
Answer:
70% inorganic, 20% organic, 10% water
Qs: The three major types of dentin -
Answer:
primary, secondary, reparative
Qs: What type of dentin is a DEFENSE reaction to an area of injury? -
Answer:
reparative dentin
Qs: What has the HIGHEST fluoride content of all the materialized tissue?
-
Answer:
cementum
Qs: The two types of cementum -
Answer:
acellular and cellular
Page 3 of 41
, Qs: What type of cementum ACTIVELY produces new layers of cementum
throughout the life of the tooth? -
Answer:
cellular
Qs: What teeth have the cusp of Carabelli? -
Answer:
maxillary first molars
Qs: The ridge formed by the union of two triangular ridges -
Answer:
transverse ridge
Qs: The spillway provides an escape for food from the _______ surface
during the mastication (chewing) process. -
Answer:
occlusal
Qs: The uncut tooth structure adjacent to the cavity prep -
Answer:
cavosurface
Qs: line angle -
Answer:
two walls
Page 4 of 41
