EFDA Board Exam Questions and
Answers 100% Pass
In the federation Dentaire Internal system for numbering, a permanent maxillary right
first molar is - ✔✔#16
What tooth numbering system does not use letters when describing the primary
dentition? - ✔✔FDI Numbering system
On a tooth with extensive gingival recession below the cementoenamel junction, which
of the following will be visible - ✔✔anatomical and clinical crown
Which of the following most accurately describes the periodontium? - ✔✔the oral soft
tissues that support teeth
When looking into the oral cavity, one will most likely see the - ✔✔clinical crown
Proximal caries usually occur on the smooth surface area: - ✔✔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? - ✔✔Embrasure
The embrasure located below the contact area is known as the _________ embrasure. -
✔✔gingival
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,When posterior teeth are viewed from the occlusal, the proximal contacts are usually
located: - ✔✔More buccal in a buccal to lingual direction
When anterior teeth are viewed - ✔✔more center in a buccal to lingual direction.
Where is enamel the thickest? - ✔✔at the incisal and occlusal areas
The following statements are true regarding the dental pulp EXPECT one. Which is the
exception? - ✔✔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? - ✔✔Dentin
Enamel coveres the anatomical crown of the tooth. The composition of enamel is
approximately: - ✔✔95.5% organic, .5% organic, 4% water
Dentin is normally yellowish white and darker than enamel. The composition of dentin
is approximately: - ✔✔70% inorganic, 20% organic, 10% water
What tooth tissue provides the developmental, sensory, nutritive and sensory functions
for the tooth - ✔✔pulp
What dental tissue is comprised of tubules that contain protoplasmic extensions of the
cells that line the pulp chamber? - ✔✔dentin
What is the hard connective tissue that lies just inside enamel and cementum? -
✔✔Dentin
What tooth tissue most resembles bone? - ✔✔cementum
Histologically, the normal dental pulp MOST resembles which of the following tissues?
- ✔✔gelatinous connective tissue
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 2
, What is the term used to describe the visible part of the tooth in the mouth - ✔✔clinical
crown
Pulp can be harmed by the caries process and by - ✔✔sterilizing, cleaning, drying and
desensitizing agents
Where is the oblique ridge located on maxillary molars? - ✔✔DB and ML cusps
Which incisor has the most acute (sharp) mesioincisal edge? - ✔✔Maxillary Central
The concavity that is located on the lingual surface incisal to the cingulum on anterior
teeth is known as a: - ✔✔Lingual Fossa
Both maxillary and mandibular canines are more rounded on the distal surface. their
distal contact area is in the incisal third. - ✔✔The first statement is true, the second is
false
A basic difference between canines and incisors is the _______ that is unique to canines -
✔✔cusp tip
The ________ incisor is about half the width of the ______ incisor - ✔✔mand central,
max central
What term is used to describe any linear elevation of the surface of the tooth? - ✔✔a
ridge
A union of two triangular ridges produces a single ridge which is called: - ✔✔a
transverse ridge
When incisors first erupt the incisal ridge: - ✔✔has mamelons
Which statement best describes a marginal ridge? - ✔✔The rounded border of enamel
which forms the mesial and distal margins of anterior and posterior teeth
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 3
Answers 100% Pass
In the federation Dentaire Internal system for numbering, a permanent maxillary right
first molar is - ✔✔#16
What tooth numbering system does not use letters when describing the primary
dentition? - ✔✔FDI Numbering system
On a tooth with extensive gingival recession below the cementoenamel junction, which
of the following will be visible - ✔✔anatomical and clinical crown
Which of the following most accurately describes the periodontium? - ✔✔the oral soft
tissues that support teeth
When looking into the oral cavity, one will most likely see the - ✔✔clinical crown
Proximal caries usually occur on the smooth surface area: - ✔✔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? - ✔✔Embrasure
The embrasure located below the contact area is known as the _________ embrasure. -
✔✔gingival
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 1
,When posterior teeth are viewed from the occlusal, the proximal contacts are usually
located: - ✔✔More buccal in a buccal to lingual direction
When anterior teeth are viewed - ✔✔more center in a buccal to lingual direction.
Where is enamel the thickest? - ✔✔at the incisal and occlusal areas
The following statements are true regarding the dental pulp EXPECT one. Which is the
exception? - ✔✔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? - ✔✔Dentin
Enamel coveres the anatomical crown of the tooth. The composition of enamel is
approximately: - ✔✔95.5% organic, .5% organic, 4% water
Dentin is normally yellowish white and darker than enamel. The composition of dentin
is approximately: - ✔✔70% inorganic, 20% organic, 10% water
What tooth tissue provides the developmental, sensory, nutritive and sensory functions
for the tooth - ✔✔pulp
What dental tissue is comprised of tubules that contain protoplasmic extensions of the
cells that line the pulp chamber? - ✔✔dentin
What is the hard connective tissue that lies just inside enamel and cementum? -
✔✔Dentin
What tooth tissue most resembles bone? - ✔✔cementum
Histologically, the normal dental pulp MOST resembles which of the following tissues?
- ✔✔gelatinous connective tissue
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 2
, What is the term used to describe the visible part of the tooth in the mouth - ✔✔clinical
crown
Pulp can be harmed by the caries process and by - ✔✔sterilizing, cleaning, drying and
desensitizing agents
Where is the oblique ridge located on maxillary molars? - ✔✔DB and ML cusps
Which incisor has the most acute (sharp) mesioincisal edge? - ✔✔Maxillary Central
The concavity that is located on the lingual surface incisal to the cingulum on anterior
teeth is known as a: - ✔✔Lingual Fossa
Both maxillary and mandibular canines are more rounded on the distal surface. their
distal contact area is in the incisal third. - ✔✔The first statement is true, the second is
false
A basic difference between canines and incisors is the _______ that is unique to canines -
✔✔cusp tip
The ________ incisor is about half the width of the ______ incisor - ✔✔mand central,
max central
What term is used to describe any linear elevation of the surface of the tooth? - ✔✔a
ridge
A union of two triangular ridges produces a single ridge which is called: - ✔✔a
transverse ridge
When incisors first erupt the incisal ridge: - ✔✔has mamelons
Which statement best describes a marginal ridge? - ✔✔The rounded border of enamel
which forms the mesial and distal margins of anterior and posterior teeth
© EMILY CHARLENE YEAR 2025-2026, ALL RIGHTS RESERVED 3
