EFDA Final Exam Questions and
Answers 100% Pass
Tooth Identification - ✔✔Arch, quadrant & name are all terms associated with what?
False - ✔✔Federation Dentaire international is the primary tooth numbering system
used in the United States.
True - ✔✔the midline is the point of reference used when distinguishing mesial surfaces
from distal surfaces on the teeth in the mouth.
Enamel, Dentin, Cementum, pulp - ✔✔what are the four histological structures of a
tooth?
Anatomical crown - ✔✔what is the portion of the tooth that extends from the incisal or
occlusal surface to the enamels junction with the cementum of the root?
clinical crown - ✔✔what is the visible portion of the anatomical crown extending from
the crest of the soft tissue and includes the occlusal surface or incisal edge?
contact area - ✔✔what is the point or area where approximating teeth in the same arch
touch or meet each other?
embrasures - ✔✔what is the spaces adjacent to and surrounding the contact of the teeth
in the same arch?
incisal or occlusal, facial or buccal, lingual, gingival - ✔✔what are the four embrasure
areas that surround the proximal contact area?
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,enamel - ✔✔what covers the anatomical crown of the tooth and varies in thickness in
different areas of the tooth?
ameloblasts - ✔✔what kind of cells produce enamel and form enamel rods?
dentin - ✔✔what is the hard connective tissue lying inside the enamel and cementum
and is normally yellowish white?
odontoblasts - ✔✔what is dentin formed by?
cementoblasts - ✔✔what forms cementum?
false - ✔✔acellular cementum is located at the apex of a root and can regenerate itself if
damaged or removed.
false - ✔✔cellular cementum extends from the CEJ towards the root apex and cannot
regenerate itself if damaged or removed.
formative, nutritive, sensory, defensive - ✔✔what are the four functions of the pulp?
chemical, bacterial, mechanical, thermal - ✔✔which irritants can lead to responses that
are related to the defensive function of the pulp?
cusp of carabeli - ✔✔what is found on the Moof a maxillary first molar?
transverse ridge - ✔✔what is the linear elevation on a tooth?
furcation - ✔✔what is the division of multiple roots?
marginal ridges - ✔✔what is the rounded mesial and distal borders of enamel found on
the occlusal surface of posterior teeth and on the linguals of anterior teeth?
cementoenamel junction (CEJ) - ✔✔where does the enamel and cementum meet?
oblique ridge - ✔✔what extends across from the DB to ML of maxillary molars on the
occlusal surface?
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, fossae's - ✔✔which concavities are found on the occlusal surface of posterior teeth and
lingual surface of anterior teeth?
grooves - ✔✔what separates the cusps of teeth?
spillway - ✔✔what is the very small depression extending across marginal ridges on the
posterior teeth?
fissures - ✔✔what is the incomplete closure of enamel that appears as faint, thin
grooves?
the periodontium - ✔✔what consists of the oral hard and soft tissues that support the
teeth?
the gingival unit - ✔✔which part of the periodontium consists of free and attached
gingiva and the alveolar mucosa?
the attachment apparatus - ✔✔which part of the periodontium consists of the
cementum, periodontal ligaments and alveolar process?
free gingiva - ✔✔the tooth is surrounded by a cuff of tissue that is not attached to the
tooth called what?
the interdental papilla - ✔✔which portion of the free gingiva is located in the
interproximal areas?
the attached gingiva - ✔✔what consists of tissues that extend from the level of depth of
the gingival sulcus to the mucogingival junction?
the alveolar mucosa - ✔✔what is the thin soft tissue that is loosely attached to the
underlying bone?
the periodontal ligaments - ✔✔the tooth is attached to the alveolar bone by bundles of
tissue fibers arranged in what groups?
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 3
Answers 100% Pass
Tooth Identification - ✔✔Arch, quadrant & name are all terms associated with what?
False - ✔✔Federation Dentaire international is the primary tooth numbering system
used in the United States.
True - ✔✔the midline is the point of reference used when distinguishing mesial surfaces
from distal surfaces on the teeth in the mouth.
Enamel, Dentin, Cementum, pulp - ✔✔what are the four histological structures of a
tooth?
Anatomical crown - ✔✔what is the portion of the tooth that extends from the incisal or
occlusal surface to the enamels junction with the cementum of the root?
clinical crown - ✔✔what is the visible portion of the anatomical crown extending from
the crest of the soft tissue and includes the occlusal surface or incisal edge?
contact area - ✔✔what is the point or area where approximating teeth in the same arch
touch or meet each other?
embrasures - ✔✔what is the spaces adjacent to and surrounding the contact of the teeth
in the same arch?
incisal or occlusal, facial or buccal, lingual, gingival - ✔✔what are the four embrasure
areas that surround the proximal contact area?
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 1
,enamel - ✔✔what covers the anatomical crown of the tooth and varies in thickness in
different areas of the tooth?
ameloblasts - ✔✔what kind of cells produce enamel and form enamel rods?
dentin - ✔✔what is the hard connective tissue lying inside the enamel and cementum
and is normally yellowish white?
odontoblasts - ✔✔what is dentin formed by?
cementoblasts - ✔✔what forms cementum?
false - ✔✔acellular cementum is located at the apex of a root and can regenerate itself if
damaged or removed.
false - ✔✔cellular cementum extends from the CEJ towards the root apex and cannot
regenerate itself if damaged or removed.
formative, nutritive, sensory, defensive - ✔✔what are the four functions of the pulp?
chemical, bacterial, mechanical, thermal - ✔✔which irritants can lead to responses that
are related to the defensive function of the pulp?
cusp of carabeli - ✔✔what is found on the Moof a maxillary first molar?
transverse ridge - ✔✔what is the linear elevation on a tooth?
furcation - ✔✔what is the division of multiple roots?
marginal ridges - ✔✔what is the rounded mesial and distal borders of enamel found on
the occlusal surface of posterior teeth and on the linguals of anterior teeth?
cementoenamel junction (CEJ) - ✔✔where does the enamel and cementum meet?
oblique ridge - ✔✔what extends across from the DB to ML of maxillary molars on the
occlusal surface?
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 2
, fossae's - ✔✔which concavities are found on the occlusal surface of posterior teeth and
lingual surface of anterior teeth?
grooves - ✔✔what separates the cusps of teeth?
spillway - ✔✔what is the very small depression extending across marginal ridges on the
posterior teeth?
fissures - ✔✔what is the incomplete closure of enamel that appears as faint, thin
grooves?
the periodontium - ✔✔what consists of the oral hard and soft tissues that support the
teeth?
the gingival unit - ✔✔which part of the periodontium consists of free and attached
gingiva and the alveolar mucosa?
the attachment apparatus - ✔✔which part of the periodontium consists of the
cementum, periodontal ligaments and alveolar process?
free gingiva - ✔✔the tooth is surrounded by a cuff of tissue that is not attached to the
tooth called what?
the interdental papilla - ✔✔which portion of the free gingiva is located in the
interproximal areas?
the attached gingiva - ✔✔what consists of tissues that extend from the level of depth of
the gingival sulcus to the mucogingival junction?
the alveolar mucosa - ✔✔what is the thin soft tissue that is loosely attached to the
underlying bone?
the periodontal ligaments - ✔✔the tooth is attached to the alveolar bone by bundles of
tissue fibers arranged in what groups?
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 3
