7/10/25, 4:32 PM EFDA Midterm Flashcards |
EFDA MIDTERM EXAM 2025-2026 \NEWEST VERSION WITH
COMPLETE 225 QUESTIONS AND CORRECT DETAILED ANSWERS
\VERIFIED ANSWERS \GRADED A+\LATEST UPDATE
is another method for numbering
the teeth. a two digit code that
Federation Dentaire identifies the quadrant and the
International system
tooth
-first number represents a quadrant
-second number represents a tooth
Portion of the tooth that extends
from the incisal or occlusal
Anatomical crown
surface to the CEJ
CEJ dictates the contour of the restoration placed in the area of the
tooth
the visible portion of the
anatomical crown extending
clinical crown
from the crest of the soft tissue
and includes incisal/occlusal
surface
furrow concavity coronal to the furcation that extends to or nearly to CEJ
the point of area where approximating teeth in the same
arch touch or meet each other
contact area -prevents food trap
-stabilize dental arch
-tooth loss, poorly contoured restorations, loss of teeth can
eliminate contact areas
spaces adjacent to and
surrounding the contact of the
teeth in the same arch
embrasures -continuous with inter proximal space
-four embrasures surrounding proximal area
-present between all teeth
unless they have been
eliminated
make teeth self-cleansing
1/20
,7/10/25, 4:32 PM EFDA Midterm Flashcards |
hardest substance in the body
-covers anatomical crown
enamel -composed of enamel rods which break off unless supported by
dentin
-formed by ameloblasts
-in permanent teeth: formation completed 3 years before
eruption
the bulk of the tooth
-second hardest substance in body
-provides support for enamel
Dentin -increases in hardness with age
-surrounds, insulates and protects pulp
-formed by odontoblasts
-tubules protoplasmic extensions of cells that line chamber
primary dentin produced before the tooth erupts and shortly after eruption
continuation of primary dentin that forms at a slower
secondary dentin
rate as the tooth ages and throughout the life of the
tooth
reparative
-forms rapidly when the tooth has received an
tertiary dentin
excessive stimulus from caries, cavity prep, or other
trauma
-deposites are placed at the apice and gradually reduce the size
of the pulp
covers anatomical root
-4th hardest substance in body
Cementum -visible where recession is present
-highest fluoride content*
-no blood supply; gets nutrients from PDL
located on the apex of the root which is made up of cells
that are actively producing new layers of cementum
cellular cementum
throughout the life of the tooth
-as enamel wears, are layers of cementum deposited at
apex which increases the length of the root as the
anatomical crown decreases
extends from CEJ toward root apex covering a large portion of
acellular cementum the root
-very thin near CEJ and thick toward apex
-cannot replace itself to form new cells if it is diseases or
mechanically removed
2/20
, 7/10/25, 4:32 PM EFDA Midterm Flashcards |
provides the developmental, protective, and sensory
mechanisms of tooth, nutrients and metabolic
processes necessary to sustain life
pulp
-size reduced with age
-most of pulp chamber is in cervical portion of root and
only pulp horns extend in crown in adult teeth
-soft tissue with an outer layer of odontoblasts producing dentin
located in the pulp chamber in
the crown portion of the tooth
Coronal pulp
directed toward the incisal
ridges/cusp tips
radicular pulp located in the pulp canals in the roots of the teeth (AKA root
canals)
located on the lateral portions of
the root (lateral canal)
accessory canals
formative/developm
ental nutritive
4 functions of pulp sensory
defensive/protective
major developmental convexity on or near the
occlusal surface of a posterior
cusp
tooth and on incisal edges of
canines
2
premolar cusps
B and L
3
mandibular 2nd premolar
cusp
s B,
L, L
5 cusps
maxillary 1st molars
Cusp of Carabelli on ML cusp
5
Mandibular 1st molars
cusp
sD
cusp
any linear elevation on the surface of a tooth; a narrow
Ridge developmental elevation
-M,D,L,B according to location
-an incisal ridge is the edge of all anterior teeth
3/20
EFDA MIDTERM EXAM 2025-2026 \NEWEST VERSION WITH
COMPLETE 225 QUESTIONS AND CORRECT DETAILED ANSWERS
\VERIFIED ANSWERS \GRADED A+\LATEST UPDATE
is another method for numbering
the teeth. a two digit code that
Federation Dentaire identifies the quadrant and the
International system
tooth
-first number represents a quadrant
-second number represents a tooth
Portion of the tooth that extends
from the incisal or occlusal
Anatomical crown
surface to the CEJ
CEJ dictates the contour of the restoration placed in the area of the
tooth
the visible portion of the
anatomical crown extending
clinical crown
from the crest of the soft tissue
and includes incisal/occlusal
surface
furrow concavity coronal to the furcation that extends to or nearly to CEJ
the point of area where approximating teeth in the same
arch touch or meet each other
contact area -prevents food trap
-stabilize dental arch
-tooth loss, poorly contoured restorations, loss of teeth can
eliminate contact areas
spaces adjacent to and
surrounding the contact of the
teeth in the same arch
embrasures -continuous with inter proximal space
-four embrasures surrounding proximal area
-present between all teeth
unless they have been
eliminated
make teeth self-cleansing
1/20
,7/10/25, 4:32 PM EFDA Midterm Flashcards |
hardest substance in the body
-covers anatomical crown
enamel -composed of enamel rods which break off unless supported by
dentin
-formed by ameloblasts
-in permanent teeth: formation completed 3 years before
eruption
the bulk of the tooth
-second hardest substance in body
-provides support for enamel
Dentin -increases in hardness with age
-surrounds, insulates and protects pulp
-formed by odontoblasts
-tubules protoplasmic extensions of cells that line chamber
primary dentin produced before the tooth erupts and shortly after eruption
continuation of primary dentin that forms at a slower
secondary dentin
rate as the tooth ages and throughout the life of the
tooth
reparative
-forms rapidly when the tooth has received an
tertiary dentin
excessive stimulus from caries, cavity prep, or other
trauma
-deposites are placed at the apice and gradually reduce the size
of the pulp
covers anatomical root
-4th hardest substance in body
Cementum -visible where recession is present
-highest fluoride content*
-no blood supply; gets nutrients from PDL
located on the apex of the root which is made up of cells
that are actively producing new layers of cementum
cellular cementum
throughout the life of the tooth
-as enamel wears, are layers of cementum deposited at
apex which increases the length of the root as the
anatomical crown decreases
extends from CEJ toward root apex covering a large portion of
acellular cementum the root
-very thin near CEJ and thick toward apex
-cannot replace itself to form new cells if it is diseases or
mechanically removed
2/20
, 7/10/25, 4:32 PM EFDA Midterm Flashcards |
provides the developmental, protective, and sensory
mechanisms of tooth, nutrients and metabolic
processes necessary to sustain life
pulp
-size reduced with age
-most of pulp chamber is in cervical portion of root and
only pulp horns extend in crown in adult teeth
-soft tissue with an outer layer of odontoblasts producing dentin
located in the pulp chamber in
the crown portion of the tooth
Coronal pulp
directed toward the incisal
ridges/cusp tips
radicular pulp located in the pulp canals in the roots of the teeth (AKA root
canals)
located on the lateral portions of
the root (lateral canal)
accessory canals
formative/developm
ental nutritive
4 functions of pulp sensory
defensive/protective
major developmental convexity on or near the
occlusal surface of a posterior
cusp
tooth and on incisal edges of
canines
2
premolar cusps
B and L
3
mandibular 2nd premolar
cusp
s B,
L, L
5 cusps
maxillary 1st molars
Cusp of Carabelli on ML cusp
5
Mandibular 1st molars
cusp
sD
cusp
any linear elevation on the surface of a tooth; a narrow
Ridge developmental elevation
-M,D,L,B according to location
-an incisal ridge is the edge of all anterior teeth
3/20
