EFDA Final Exam UPDATED ACTUAL Exam Questions and CORRECT Answers

EFDA Final Exam UPDATED ACTUAL
Exam Questions and CORRECT Answers
Tooth Identification - CORRECT ANSWER - Arch, quadrant & name are all terms
associated with what?


False - CORRECT ANSWER - Federation Dentaire international is the primary tooth
numbering system used in the United States.


True - CORRECT ANSWER - 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 - CORRECT ANSWER - what are the four histological
structures of a tooth?


Anatomical crown - CORRECT ANSWER - 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 - CORRECT ANSWER - 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 - CORRECT ANSWER - what is the point or area where approximating teeth
in the same arch touch or meet each other?


embrasures - CORRECT ANSWER - 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 - CORRECT ANSWER - what are the
four embrasure areas that surround the proximal contact area?

,enamel - CORRECT ANSWER - what covers the anatomical crown of the tooth and varies
in thickness in different areas of the tooth?


ameloblasts - CORRECT ANSWER - what kind of cells produce enamel and form enamel
rods?


dentin - CORRECT ANSWER - what is the hard connective tissue lying inside the enamel
and cementum and is normally yellowish white?


odontoblasts - CORRECT ANSWER - what is dentin formed by?



cementoblasts - CORRECT ANSWER - what forms cementum?



false - CORRECT ANSWER - acellular cementum is located at the apex of a root and can
regenerate itself if damaged or removed.


false - CORRECT ANSWER - cellular cementum extends from the CEJ towards the root
apex and cannot regenerate itself if damaged or removed.


formative, nutritive, sensory, defensive - CORRECT ANSWER - what are the four
functions of the pulp?


chemical, bacterial, mechanical, thermal - CORRECT ANSWER - which irritants can lead
to responses that are related to the defensive function of the pulp?


cusp of carabeli - CORRECT ANSWER - what is found on the Moof a maxillary first
molar?


transverse ridge - CORRECT ANSWER - what is the linear elevation on a tooth?

, furcation - CORRECT ANSWER - what is the division of multiple roots?



marginal ridges - CORRECT ANSWER - 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) - CORRECT ANSWER - where does the enamel and
cementum meet?


oblique ridge - CORRECT ANSWER - what extends across from the DB to ML of
maxillary molars on the occlusal surface?


fossae's - CORRECT ANSWER - which concavities are found on the occlusal surface of
posterior teeth and lingual surface of anterior teeth?


grooves - CORRECT ANSWER - what separates the cusps of teeth?



spillway - CORRECT ANSWER - what is the very small depression extending across
marginal ridges on the posterior teeth?


fissures - CORRECT ANSWER - what is the incomplete closure of enamel that appears as
faint, thin grooves?


the periodontium - CORRECT ANSWER - what consists of the oral hard and soft tissues
that support the teeth?


the gingival unit - CORRECT ANSWER - which part of the periodontium consists of free
and attached gingiva and the alveolar mucosa?


the attachment apparatus - CORRECT ANSWER - which part of the periodontium consists
of the cementum, periodontal ligaments and alveolar process?