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 reduced enamel epithelium merges with oral epithelium to form
A) Junctional epithelium
B) Lamina propria
C) Periodontal ligament
D) Interdental papilla
✅ Correct Answer: A
Explanation: Junctional epithelium originates from the fusion of reduced enamel epithelium and oral epithelium after eruption.
Q: Lines of Retzius represent
A) Collagen arrangements
B) Vascular channels
C) Incremental enamel growth
D) Nerve fibers
✅ Correct Answer: C
Explanation: These are growth lines in enamel formed by rhythmic deposition during amelogenesis.
Q: The cementoenamel junction may present as
A) Edge-to-edge
B) Overlap
C) All of the above
D) Gap
✅ Correct Answer: C
Explanation: The CEJ can show overlapping, edge-to-edge, or a gap between cementum and enamel, varying among individuals.
Q: Dental pulp is derived from
A) Enamel knot
B) Dental follicle
C) Oral ectoderm
D) Neural crest cells
✅ Correct Answer: D
Explanation: Neural crest-derived ectomesenchyme gives rise to the dental papilla, which forms the pulp and dentin.
Q: Root formation begins at the
A) Enamel organ
B) Cervical loop
C) Cuspal tip
D) Apical papilla
✅ Correct Answer: B
Explanation: Root formation starts at the cervical loop with the formation of Hertwig’s epithelial root sheath.