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 prominent feature in the enamel of deciduous teeth is
A) Gnarled enamel
B) Perikymata
C) Neonatal line
D) Cross striations
✅ Correct Answer: C
Explanation: The neonatal line is an accentuated incremental line that marks birth, seen prominently in deciduous teeth.
Q: Resting lines in dentin are formed due to
A) Interrupted mineralization
B) Pulpal degeneration
C) Vascular rupture
D) Protein degradation
✅ Correct Answer: A
Explanation: Resting lines represent pauses in dentin deposition and appear as incremental lines.
Q: The innermost layer of enamel organ during bell stage is the
A) Outer enamel epithelium
B) Stellate reticulum
C) Inner enamel epithelium
D) Stratum intermedium
✅ Correct Answer: C
Explanation: The inner enamel epithelium differentiates into ameloblasts, which secrete enamel.
Q: Apical foramen allows passage of
A) Cementoblasts
B) Sharpey’s fibers
C) Blood vessels and nerves
D) Enamel-forming cells
✅ Correct Answer: C
Explanation: The apical foramen serves as the main conduit for neurovascular supply to the pulp.
Q: The first sign of enamel formation appears at the
A) Root apex
B) Enamel surface
C) DEJ
D) CEJ
✅ Correct Answer: C
Explanation: Enamel deposition begins at the dentinoenamel junction and progresses outward.