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: Dentin located closest to the pulp is
A) Secondary dentin
B) Intertubular dentin
C) Peritubular dentin
D) Predentin
✅ Correct Answer: D
Explanation: Predentin is an unmineralized zone adjacent to the pulp, formed before being mineralized into mature dentin.
Q: The neonatal line is found in
A) Primary and permanent enamel
B) Bone tissue
C) All root dentin
D) Cementum only
✅ Correct Answer: A
Explanation: The neonatal line is an accentuated incremental line in enamel and dentin marking the birth-related stress in developing teeth.
Q: Cells responsible for forming alveolar bone are
A) Cementocytes
B) Osteoblasts
C) Ameloblasts
D) Fibroblasts
✅ Correct Answer: B
Explanation: Osteoblasts synthesize the organic matrix of bone and initiate mineralization, forming alveolar bone.
Q: Blood vessels enter the pulp through the
A) Cementoenamel junction
B) Enamel-dentin junction
C) Periodontal ligament
D) Apical foramen
✅ Correct Answer: D
Explanation: The apical foramen is the primary route for blood vessels and nerves to enter the dental pulp.
Q: Odontoblasts originate from the
A) Outer enamel epithelium
B) Stratum intermedium
C) Dental papilla
D) Dental follicle
✅ Correct Answer: C
Explanation: The dental papilla differentiates into odontoblasts, which are responsible for dentin formation.