Oral Histology MCQs
Oral Histology MCQs are tailored for dentistry students seeking mastery of tooth development and oral tissue structure. These questions focus on enamel formation, dentin-pulp complex, cementum, alveolar bone, and salivary glands. They're excellent for preparation of BDS, MDCAT, and related tests.
Q: The most abundant cells in dental pulp are
A) Lymphocytes
B) Macrophages
C) Odontoblasts
D) Fibroblasts
✅ Correct Answer: D
Explanation: Fibroblasts are the predominant cells in the pulp and are responsible for producing extracellular matrix.
Q: Cementum is most similar in composition to
A) Bone
B) Enamel
C) Dentin
D) Pulp
✅ Correct Answer: A
Explanation: Cementum shares structural similarities with bone and is involved in tooth support via periodontal ligament attachment.
Q: Lamina dura represents
A) Gingival connective tissue
B) Cortical bone lining the tooth socket
C) Outer cementum layer
D) Periodontal fibers
✅ Correct Answer: B
Explanation: The lamina dura is the dense radiopaque line seen around tooth roots in radiographs, indicating the socket wall.
Q: Enamel rods are aligned
A) Perpendicular to the dentin-enamel junction
B) Parallel to the dentin-enamel junction
C) Along root surface
D) Randomly
✅ Correct Answer: A
Explanation: Enamel rods are oriented perpendicularly from the dentinoenamel junction toward the tooth surface.
Q: Apical foramen serves as a passage for
A) Enamel proteins
B) Blood vessels and nerves
C) Dentin matrix
D) Cementocytes
✅ Correct Answer: B
Explanation: The apical foramen allows neurovascular structures to enter and exit the pulp chamber at the root apex.