A. Third power of the diameter
B. Sixth power of the diameter
C. Square of the diameter
D. Fourth power of the diameter
✅ The correct answer is option D. Fourth power of the diameter.
Oral Histology
342. Which of the following is not correct?
A. Free denticles are entirely surrounded by pulp tissue(free of dentin)
B. Embedded denticles are entirely surrounded by dentin (embedded in dentin)
C. Attached denticles are partly fused with dentin
D. False denticles contains many dentinal tubules
✅ The correct answer is option D. False denticles contains many dentinal tubules.
343. The type of fibrous element in enamel is_____________?
A. Tono filament
B. Keratin like fibre
C. Collagen fibre
D. Vimentin filament
✅ The correct answer is option B. Keratin like fibre.
344. Formation of dentin by odontoblasts begins in_______________?
A. Morphogenic stage
B. Organizing stage
C. Desmolytic stage
D. Formative stage
✅ The correct answer is option B. Organizing stage.
345. Which of the following is correct about enamel crystals ?
A. Same as dentin crystals
B. Contains organic portion in the center
C. Roughly texagonal in shape
D. Their diameter is about 5 microns in size
✅ The correct answer is option C. Roughly texagonal in shape.
346. Jacobson’s organ is________________?
A. Auxillary olfactory sense organ
B. Ellipsoid/Cigar shaped
C. Undergoes degeneration after 4 months of intrauterine life
D. All of the above
✅ The correct answer is option D. All of the above.
347. The class of low molecular weight calcium binding proteins seen predominantly in developing enamel are_____________?
A. Enamelin
B. Amelogenin
C. Tuftelin
D. Ameloplakin
✅ The correct answer is option B. Amelogenin.
348. The articular cartilage is characterized by all of the following features except_____________?
A. It is devoid of perichondrium
B. It has a rich nerve supply
C. It is avascular
D. It lacks the capacity to regenerate
✅ The correct answer is option B. It has a rich nerve supply.
349. The deciduous teeth can be differentiated from permanent teeth by_____________?
A. Enamel prismatic arrangement
B. Dentinal tubule arrangement
C. Primary and secondary dentin
D. Mineral content
✅ The correct answer is option A. Enamel prismatic arrangement.
350. Non keratinized epithelium is found over___________?
A. Attached gingiva
B. Free gingiva
C. Interdental papilla
D. Gingival sulcus
✅ The correct answer is option D. Gingival sulcus.