1
EFDA - PRACTICE EXAM 2026/2027 | EXAM PREP |
200 VERIFIED Q&A | DETAILED RATIONALES |
NGN-ALIGNED | PASS GUARANTEED – A+ GRADED
SECTION I: DENTAL ANATOMY AND PHYSIOLOGY - Questions 1-20
Q1: Tooth Structure
The student is reviewing dental anatomy. What is the hardest substance in the human body?
A. Enamel
B. Dentin
C. Cementum
D. Bone
Correct Answer: A
Rationale: Enamel is the hardest substance in the human body, covering the crown of the tooth.
[100% CORRECT]
Q2: Dentin
The student is reviewing dental anatomy. What is the layer beneath enamel that forms the bulk of
the tooth?
A. Dentin
B. Cementum
C. Pulp
D. Periodontal ligament
Correct Answer: A
Rationale: Dentin is the layer beneath enamel and cementum, forming the bulk of the tooth. [100%
CORRECT]
Q3: Pulp
The student is reviewing dental anatomy. What does the pulp contain?
A. Nerves and blood vessels
B. Enamel and dentin
C. Cementum and periodontal ligament
D. Bone and cartilage
,2
Correct Answer: A
Rationale: The pulp contains nerves, blood vessels, and connective tissue. [100% CORRECT]
Q4: Cementum
The student is reviewing dental anatomy. What covers the root of the tooth?
A. Cementum
B. Enamel
C. Dentin
D. Pulp
Correct Answer: A
Rationale: Cementum covers the root of the tooth and attaches it to the periodontal ligament.
[100% CORRECT]
Q5: Periodontal Ligament
The student is reviewing dental anatomy. What attaches the tooth to the alveolar bone?
A. Periodontal ligament
B. Gingiva
C. Cementum
D. Enamel
Correct Answer: A
Rationale: The periodontal ligament attaches the tooth to the alveolar bone. [100% CORRECT]
Q6: Alveolar Bone
The student is reviewing dental anatomy. What bone supports the teeth?
A. Alveolar bone
B. Mandible
C. Maxilla
D. Zygomatic bone
Correct Answer: A
Rationale: Alveolar bone surrounds and supports the teeth. [100% CORRECT]
Q7: Gingiva
The student is reviewing dental anatomy. What is gingiva?
,3
A. Gum tissue
B. Tooth enamel
C. Periodontal ligament
D. Alveolar bone
Correct Answer: A
Rationale: Gingiva is the gum tissue surrounding the teeth. [100% CORRECT]
Q8: Incisors
The student is reviewing dental anatomy. What are incisors used for?
A. Cutting food
B. Tearing food
C. Grinding food
D. Crushing food
Correct Answer: A
Rationale: Incisors are front teeth used for cutting food. [100% CORRECT]
Q9: Canines
The student is reviewing dental anatomy. What are canines used for?
A. Tearing food
B. Cutting food
C. Grinding food
D. Crushing food
Correct Answer: A
Rationale: Canines are pointed teeth used for tearing food. [100% CORRECT]
Q10: Premolars
The student is reviewing dental anatomy. What are premolars used for?
A. Tearing and grinding food
B. Cutting food
C. Crushing food
D. Incising food
Correct Answer: A
Rationale: Premolars are used for tearing and grinding food. [100% CORRECT]
, 4
Q11: Molars
The student is reviewing dental anatomy. What are molars used for?
A. Grinding food
B. Cutting food
C. Tearing food
D. Incising food
Correct Answer: A
Rationale: Molars are large back teeth used for grinding food. [100% CORRECT]
Q12: Primary Dentition
The student is reviewing dental anatomy. How many teeth are in the primary dentition?
A. 20
B. 28
C. 32
D. 24
Correct Answer: A
Rationale: The primary dentition has 20 teeth. [100% CORRECT]
Q13: Permanent Dentition
The student is reviewing dental anatomy. How many teeth are in the permanent dentition?
A. 32
B. 20
C. 28
D. 24
Correct Answer: A
Rationale: The permanent dentition has 32 teeth. [100% CORRECT]
Q14: Universal Numbering
The student is reviewing tooth numbering. What tooth is #1 in the universal numbering system?
A. Maxillary right third molar
B. Maxillary left third molar
C. Mandibular right third molar
D. Mandibular left third molar
Correct Answer: A
EFDA - PRACTICE EXAM 2026/2027 | EXAM PREP |
200 VERIFIED Q&A | DETAILED RATIONALES |
NGN-ALIGNED | PASS GUARANTEED – A+ GRADED
SECTION I: DENTAL ANATOMY AND PHYSIOLOGY - Questions 1-20
Q1: Tooth Structure
The student is reviewing dental anatomy. What is the hardest substance in the human body?
A. Enamel
B. Dentin
C. Cementum
D. Bone
Correct Answer: A
Rationale: Enamel is the hardest substance in the human body, covering the crown of the tooth.
[100% CORRECT]
Q2: Dentin
The student is reviewing dental anatomy. What is the layer beneath enamel that forms the bulk of
the tooth?
A. Dentin
B. Cementum
C. Pulp
D. Periodontal ligament
Correct Answer: A
Rationale: Dentin is the layer beneath enamel and cementum, forming the bulk of the tooth. [100%
CORRECT]
Q3: Pulp
The student is reviewing dental anatomy. What does the pulp contain?
A. Nerves and blood vessels
B. Enamel and dentin
C. Cementum and periodontal ligament
D. Bone and cartilage
,2
Correct Answer: A
Rationale: The pulp contains nerves, blood vessels, and connective tissue. [100% CORRECT]
Q4: Cementum
The student is reviewing dental anatomy. What covers the root of the tooth?
A. Cementum
B. Enamel
C. Dentin
D. Pulp
Correct Answer: A
Rationale: Cementum covers the root of the tooth and attaches it to the periodontal ligament.
[100% CORRECT]
Q5: Periodontal Ligament
The student is reviewing dental anatomy. What attaches the tooth to the alveolar bone?
A. Periodontal ligament
B. Gingiva
C. Cementum
D. Enamel
Correct Answer: A
Rationale: The periodontal ligament attaches the tooth to the alveolar bone. [100% CORRECT]
Q6: Alveolar Bone
The student is reviewing dental anatomy. What bone supports the teeth?
A. Alveolar bone
B. Mandible
C. Maxilla
D. Zygomatic bone
Correct Answer: A
Rationale: Alveolar bone surrounds and supports the teeth. [100% CORRECT]
Q7: Gingiva
The student is reviewing dental anatomy. What is gingiva?
,3
A. Gum tissue
B. Tooth enamel
C. Periodontal ligament
D. Alveolar bone
Correct Answer: A
Rationale: Gingiva is the gum tissue surrounding the teeth. [100% CORRECT]
Q8: Incisors
The student is reviewing dental anatomy. What are incisors used for?
A. Cutting food
B. Tearing food
C. Grinding food
D. Crushing food
Correct Answer: A
Rationale: Incisors are front teeth used for cutting food. [100% CORRECT]
Q9: Canines
The student is reviewing dental anatomy. What are canines used for?
A. Tearing food
B. Cutting food
C. Grinding food
D. Crushing food
Correct Answer: A
Rationale: Canines are pointed teeth used for tearing food. [100% CORRECT]
Q10: Premolars
The student is reviewing dental anatomy. What are premolars used for?
A. Tearing and grinding food
B. Cutting food
C. Crushing food
D. Incising food
Correct Answer: A
Rationale: Premolars are used for tearing and grinding food. [100% CORRECT]
, 4
Q11: Molars
The student is reviewing dental anatomy. What are molars used for?
A. Grinding food
B. Cutting food
C. Tearing food
D. Incising food
Correct Answer: A
Rationale: Molars are large back teeth used for grinding food. [100% CORRECT]
Q12: Primary Dentition
The student is reviewing dental anatomy. How many teeth are in the primary dentition?
A. 20
B. 28
C. 32
D. 24
Correct Answer: A
Rationale: The primary dentition has 20 teeth. [100% CORRECT]
Q13: Permanent Dentition
The student is reviewing dental anatomy. How many teeth are in the permanent dentition?
A. 32
B. 20
C. 28
D. 24
Correct Answer: A
Rationale: The permanent dentition has 32 teeth. [100% CORRECT]
Q14: Universal Numbering
The student is reviewing tooth numbering. What tooth is #1 in the universal numbering system?
A. Maxillary right third molar
B. Maxillary left third molar
C. Mandibular right third molar
D. Mandibular left third molar
Correct Answer: A
