Practice board questions - I created

Question 1

Which of the following cardinal features of Odontogenic Epithelium is NOT present in CAA?

A. Palisading of the basilar epithelium
B. The palisading epithelial cells have antibasilar nuclei
C. The palisading cells can have a basilar clear zone within the cytoplasm
D. Centrally , the odontogenic island are comprised of polygonal cells with long intercellular desmosomal bridges reminiscent of the stellate reticulum

Answer 1

D. Centrally , the odontogenic island are comprised of polygonal cells with long intercellular desmosomal bridges reminiscent of the stellate reticulum

Question 2

Which of the following best describes the Dental Lamina?

A. Enamel organ epithelial cells that occupy the central region between the inner and outer enamel epithelium.

B. Segment of embryologic gingival epithelium that invaginates into the developing jaw and gives rise to the enamel organ.

C. Ectomesenchymal tissue that immediately surrounds the enamel organ and dental papilla. Gives rise to cementum, periodontal ligament and alveolar bone.

D. Ectomesenchyme of the jaw that is induced by odontogenic epithelium and gives rise to dental pulp and odontoblasts

Answer 2

B

A. Stellate Reticulum: enamel organ epithelial cells that occupy the central region between the inner and outer enamel epithelium.
C. Dental Follicle: Ectomesenchymal tissue that immediately surrounds the enamel organ and dental papilla. Gives rise to cementum, periodontal ligament and alveolar bone.

D. Dental Papilla: Ectomesenchyme of the jaw that is induced by odontogenic epithelium and gives rise to dental pulp and odontoblasts

Question 3

Which of the follow is true in regards to the four stages of tooth embryogenesis?

A. Bud Stage - forms dental papilla
B. Cap Stage - differentiation of the endomesenchyme (future dental papilla)
C. Bell Stage - Enamel organ forms a well defined well structure surrounding the proliferative ectomesenchyme of the dental papilla.
D. Late bell stage (dentinogenesis) - ectomesenchyme derived Ameloblasts produce a strip of dentin along the basement membrane
E. Crown Stage (amelogenesis) - enamel production by ondontoblasts and deposited on the surface of the dentin

Answer 3

C.

A. Bud Stage - forms dental lamina
B. Cap Stage - differentiation of the ectomesenchyme (future dental papilla)
DLate bell stage (dentinogenesis) - ectomesenchyme derived ondontoblasts produce a strip of dentin along the basement membrane
E. Crown Stage (amelogenesis) - enamel production by ameloblasts and deposited on the surface of the dentin

Question 4

When looking at the architectural arrangement of Odontogenic epithelium histologically, which of the following is pathognomonic for odontogenic epithelium?

A. Plexiform ribbons
B. “Ink drop” structure
C. Round follicles
D. Anastamosing trabeculae

Answer 4

B. Ink drop structure

All are features of odontogenic epithelium

Question 5

Which of the following is not a drug class that causes drug induced gingival overgrowth (DIGO)?
a. Calcium channel blockers
b. Steroids
c. Anticonvulsants
d. Immunosuppresants

Answer 5

b. Steroids