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EFDA ENTRANCE EXAM LATEST REAL EXAM
QUESTIONS AND CORRECT ANSWERS
(DETAILED ANSWERS) 2026/2027.
DOMAIN 1: DENTAL ANATOMY, TOOTH MORPHOLOGY & OCCLUSION (12 QUESTIONS)
1. In the Universal Numbering System, which tooth is designated as #19?
A. Maxillary right first molar
B. Mandibular left first molar
C. Mandibular right first molar
D. Maxillary left first premolar
[CORRECT] B. Mandibular left first molar
Rationale: In the Universal Numbering System, the mandibular arch starts at #17 (third molar)
and progresses to #32. Therefore, #19 is the mandibular left first molar.
2. Using the Universal Numbering System for primary dentition, which tooth corresponds to
the primary maxillary right canine?
A. Tooth B
B. Tooth E
C. Tooth K
D. Tooth T
[CORRECT] A. Tooth B
Rationale: The primary dentition uses letters A through T. The maxillary right second molar is
A, and the sequence moves across to the maxillary left second molar (J). Therefore, the
maxillary right canine is Tooth B.
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3. A pediatric patient has a tooth exfoliating. In the Palmer Notation System, this tooth is
located in the lower right quadrant and is the second tooth from the midline. How is this
tooth designated?
A. 𐃐
B. 𐃑
C. 𐃒
D. ┐
[CORRECT] B. 𐃑
Rationale: Palmer notation uses quadrants and symbols. The lower right quadrant is
represented by the symbol ┐ (or 𐃐 for the quadrant). The central incisor is "1" and the lateral
incisor is "2". Therefore, the lower right lateral incisor is 𐃑.
4. Which of the following are anatomical characteristics specific to the mandibular first
molar? (Select all that apply)
A. It typically has five cusps.
B. It has two roots (mesial and distal).
C. It possesses a prominent oblique ridge.
D. The occlusal surface is rectangular or square.
[CORRECT] A, B, D
Rationale: The mandibular first molar typically has five cusps (2 buccal, 2 lingual, 1 distal), two
distinct roots, and a rectangular occlusal table. An oblique ridge is a feature of the maxillary
molars, not mandibular.
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5. During a tooth identification exam, you observe a tooth with a smooth, incisal edge that is
nearly perpendicular to the long axis of the tooth and a root that is typically round in cross-
section. Which tooth is this?
A. Maxillary central incisor
B. Maxillary lateral incisor
C. Mandibular central incisor
D. Mandibular canine
[CORRECT] A. Maxillary central incisor
Rationale: The maxillary central incisor is the largest incisor. Its incisal edge is straight and
perpendicular to the long axis (unlike the rounded or sloped edges of laterals or mandibular
incisors), and the root is often triangular to round in cross-section, but the distinct incisal edge
morphology is the key identifier described.
6. Which anatomical landmark of the maxillary central incisor is specifically described as the
elevated area on the lingual surface surrounding the cingulum, forming the boundaries of the
lingual fossa?
A. Marginal ridges
B. Cingulum
C. Mamelons
D. Linguogingival groove
[CORRECT] A. Marginal ridges
Rationale: The mesial and distal marginal ridges are prominent elevations on the lingual
surface of the maxillary central incisor that run from the cingulum to the incisal edge, framing
the lingual fossa.
7. In Angle’s Classification of Occlusion, the mesiobuccal cusp of the maxillary first molar
articulates with the mesiobuccal groove of the mandibular first molar. This defines:
A. Class I
B. Class II Division 1
EFDA ENTRANCE EXAM LATEST REAL EXAM
QUESTIONS AND CORRECT ANSWERS
(DETAILED ANSWERS) 2026/2027.
DOMAIN 1: DENTAL ANATOMY, TOOTH MORPHOLOGY & OCCLUSION (12 QUESTIONS)
1. In the Universal Numbering System, which tooth is designated as #19?
A. Maxillary right first molar
B. Mandibular left first molar
C. Mandibular right first molar
D. Maxillary left first premolar
[CORRECT] B. Mandibular left first molar
Rationale: In the Universal Numbering System, the mandibular arch starts at #17 (third molar)
and progresses to #32. Therefore, #19 is the mandibular left first molar.
2. Using the Universal Numbering System for primary dentition, which tooth corresponds to
the primary maxillary right canine?
A. Tooth B
B. Tooth E
C. Tooth K
D. Tooth T
[CORRECT] A. Tooth B
Rationale: The primary dentition uses letters A through T. The maxillary right second molar is
A, and the sequence moves across to the maxillary left second molar (J). Therefore, the
maxillary right canine is Tooth B.
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3. A pediatric patient has a tooth exfoliating. In the Palmer Notation System, this tooth is
located in the lower right quadrant and is the second tooth from the midline. How is this
tooth designated?
A. 𐃐
B. 𐃑
C. 𐃒
D. ┐
[CORRECT] B. 𐃑
Rationale: Palmer notation uses quadrants and symbols. The lower right quadrant is
represented by the symbol ┐ (or 𐃐 for the quadrant). The central incisor is "1" and the lateral
incisor is "2". Therefore, the lower right lateral incisor is 𐃑.
4. Which of the following are anatomical characteristics specific to the mandibular first
molar? (Select all that apply)
A. It typically has five cusps.
B. It has two roots (mesial and distal).
C. It possesses a prominent oblique ridge.
D. The occlusal surface is rectangular or square.
[CORRECT] A, B, D
Rationale: The mandibular first molar typically has five cusps (2 buccal, 2 lingual, 1 distal), two
distinct roots, and a rectangular occlusal table. An oblique ridge is a feature of the maxillary
molars, not mandibular.
, 3
5. During a tooth identification exam, you observe a tooth with a smooth, incisal edge that is
nearly perpendicular to the long axis of the tooth and a root that is typically round in cross-
section. Which tooth is this?
A. Maxillary central incisor
B. Maxillary lateral incisor
C. Mandibular central incisor
D. Mandibular canine
[CORRECT] A. Maxillary central incisor
Rationale: The maxillary central incisor is the largest incisor. Its incisal edge is straight and
perpendicular to the long axis (unlike the rounded or sloped edges of laterals or mandibular
incisors), and the root is often triangular to round in cross-section, but the distinct incisal edge
morphology is the key identifier described.
6. Which anatomical landmark of the maxillary central incisor is specifically described as the
elevated area on the lingual surface surrounding the cingulum, forming the boundaries of the
lingual fossa?
A. Marginal ridges
B. Cingulum
C. Mamelons
D. Linguogingival groove
[CORRECT] A. Marginal ridges
Rationale: The mesial and distal marginal ridges are prominent elevations on the lingual
surface of the maxillary central incisor that run from the cingulum to the incisal edge, framing
the lingual fossa.
7. In Angle’s Classification of Occlusion, the mesiobuccal cusp of the maxillary first molar
articulates with the mesiobuccal groove of the mandibular first molar. This defines:
A. Class I
B. Class II Division 1
