EFDA Board Exam UPDATED ACTUAL
Exam Questions and CORRECT Answers
In the federation Dentaire Internal system for numbering, a permanent maxillary right first molar
is - CORRECT ANSWER - #16
What tooth numbering system does not use letters when describing the primary dentition? -
CORRECT ANSWER - FDI Numbering system
On a tooth with extensive gingival recession below the cementoenamel junction, which of the
following will be visible - CORRECT ANSWER - anatomical and clinical crown
Which of the following most accurately describes the periodontium? - CORRECT
ANSWER - the oral soft tissues that support teeth
When looking into the oral cavity, one will most likely see the - CORRECT ANSWER -
clinical crown
Proximal caries usually occur on the smooth surface area: - CORRECT ANSWER - Below
(gingival to) the contact area
What is the term that describes a space continuous with an inter-proximal space, produced by
curvatures of teeth in contact in the same arch, that provides a channel or passage through which
food escapes from the occlusal surfaces of the teeth during mastication? - CORRECT
ANSWER - Embrasure
The embrasure located below the contact area is known as the _________ embrasure. -
CORRECT ANSWER - gingival
When posterior teeth are viewed from the occlusal, the proximal contacts are usually located: -
CORRECT ANSWER - More buccal in a buccal to lingual direction
,When anterior teeth are viewed - CORRECT ANSWER - more center in a buccal to
lingual direction.
Where is enamel the thickest? - CORRECT ANSWER - at the incisal and occlusal areas
The following statements are true regarding the dental pulp EXPECT one. Which is the
exception? - CORRECT ANSWER - Dental pulp increases in size with age
What dental tissue is comprised of tubules that contain protoplasmic extensions of the cells that
line the pulp chamber? - CORRECT ANSWER - Dentin
Enamel coveres the anatomical crown of the tooth. The composition of enamel is approximately:
- CORRECT ANSWER - 95.5% organic, .5% organic, 4% water
Dentin is normally yellowish white and darker than enamel. The composition of dentin is
approximately: - CORRECT ANSWER - 70% inorganic, 20% organic, 10% water
What tooth tissue provides the developmental, sensory, nutritive and sensory functions for the
tooth - CORRECT ANSWER - pulp
What dental tissue is comprised of tubules that contain protoplasmic extensions of the cells that
line the pulp chamber? - CORRECT ANSWER - dentin
What is the hard connective tissue that lies just inside enamel and cementum? - CORRECT
ANSWER - Dentin
What tooth tissue most resembles bone? - CORRECT ANSWER - cementum
, Histologically, the normal dental pulp MOST resembles which of the following tissues? -
CORRECT ANSWER - gelatinous connective tissue
What is the term used to describe the visible part of the tooth in the mouth - CORRECT
ANSWER - clinical crown
Pulp can be harmed by the caries process and by - CORRECT ANSWER - sterilizing,
cleaning, drying and desensitizing agents
Where is the oblique ridge located on maxillary molars? - CORRECT ANSWER - DB and
ML cusps
Which incisor has the most acute (sharp) mesioincisal edge? - CORRECT ANSWER -
Maxillary Central
The concavity that is located on the lingual surface incisal to the cingulum on anterior teeth is
known as a: - CORRECT ANSWER - Lingual Fossa
Both maxillary and mandibular canines are more rounded on the distal surface. their distal
contact area is in the incisal third. - CORRECT ANSWER - The first statement is true, the
second is false
A basic difference between canines and incisors is the _______ that is unique to canines -
CORRECT ANSWER - cusp tip
The ________ incisor is about half the width of the ______ incisor - CORRECT
ANSWER - mand central, max central
What term is used to describe any linear elevation of the surface of the tooth? - CORRECT
ANSWER - a ridge
Exam Questions and CORRECT Answers
In the federation Dentaire Internal system for numbering, a permanent maxillary right first molar
is - CORRECT ANSWER - #16
What tooth numbering system does not use letters when describing the primary dentition? -
CORRECT ANSWER - FDI Numbering system
On a tooth with extensive gingival recession below the cementoenamel junction, which of the
following will be visible - CORRECT ANSWER - anatomical and clinical crown
Which of the following most accurately describes the periodontium? - CORRECT
ANSWER - the oral soft tissues that support teeth
When looking into the oral cavity, one will most likely see the - CORRECT ANSWER -
clinical crown
Proximal caries usually occur on the smooth surface area: - CORRECT ANSWER - Below
(gingival to) the contact area
What is the term that describes a space continuous with an inter-proximal space, produced by
curvatures of teeth in contact in the same arch, that provides a channel or passage through which
food escapes from the occlusal surfaces of the teeth during mastication? - CORRECT
ANSWER - Embrasure
The embrasure located below the contact area is known as the _________ embrasure. -
CORRECT ANSWER - gingival
When posterior teeth are viewed from the occlusal, the proximal contacts are usually located: -
CORRECT ANSWER - More buccal in a buccal to lingual direction
,When anterior teeth are viewed - CORRECT ANSWER - more center in a buccal to
lingual direction.
Where is enamel the thickest? - CORRECT ANSWER - at the incisal and occlusal areas
The following statements are true regarding the dental pulp EXPECT one. Which is the
exception? - CORRECT ANSWER - Dental pulp increases in size with age
What dental tissue is comprised of tubules that contain protoplasmic extensions of the cells that
line the pulp chamber? - CORRECT ANSWER - Dentin
Enamel coveres the anatomical crown of the tooth. The composition of enamel is approximately:
- CORRECT ANSWER - 95.5% organic, .5% organic, 4% water
Dentin is normally yellowish white and darker than enamel. The composition of dentin is
approximately: - CORRECT ANSWER - 70% inorganic, 20% organic, 10% water
What tooth tissue provides the developmental, sensory, nutritive and sensory functions for the
tooth - CORRECT ANSWER - pulp
What dental tissue is comprised of tubules that contain protoplasmic extensions of the cells that
line the pulp chamber? - CORRECT ANSWER - dentin
What is the hard connective tissue that lies just inside enamel and cementum? - CORRECT
ANSWER - Dentin
What tooth tissue most resembles bone? - CORRECT ANSWER - cementum
, Histologically, the normal dental pulp MOST resembles which of the following tissues? -
CORRECT ANSWER - gelatinous connective tissue
What is the term used to describe the visible part of the tooth in the mouth - CORRECT
ANSWER - clinical crown
Pulp can be harmed by the caries process and by - CORRECT ANSWER - sterilizing,
cleaning, drying and desensitizing agents
Where is the oblique ridge located on maxillary molars? - CORRECT ANSWER - DB and
ML cusps
Which incisor has the most acute (sharp) mesioincisal edge? - CORRECT ANSWER -
Maxillary Central
The concavity that is located on the lingual surface incisal to the cingulum on anterior teeth is
known as a: - CORRECT ANSWER - Lingual Fossa
Both maxillary and mandibular canines are more rounded on the distal surface. their distal
contact area is in the incisal third. - CORRECT ANSWER - The first statement is true, the
second is false
A basic difference between canines and incisors is the _______ that is unique to canines -
CORRECT ANSWER - cusp tip
The ________ incisor is about half the width of the ______ incisor - CORRECT
ANSWER - mand central, max central
What term is used to describe any linear elevation of the surface of the tooth? - CORRECT
ANSWER - a ridge
