oral histology MCQs – Page 7

Practise focused oral histology questions with marked answers for exam preparation and subject revision.

oral histology Mcqs
121. The region in which cementum formation is most rapid is_____________?
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A. Coronal

B. Interradicular

C. Middle

D. Apical

122. Metalloprotienases are used in which stage of the amelogenesis_____________?
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A. Desmolytic

B. Protective

C. Formative/ Secretory

D. Organising

123. The key hole, pattern appearance in the cross section is feature of______________?
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A. Intratubular dentin

B. Intertubular dentin

C. Aprismatic enamel

D. Prismatic enamel
124. The dentin receptors are unique because_____________?
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A. They elicit pain to hot and cold

B. Elicit only pain as a response

C. They elicit pain to touch and pressure

D. They elicit pain to chemicals

125. Cementum formation is seen_______________?
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A. After dentin formation

B. Before dentin formation

C. Both are formed at same time

D. None of the above

126. Shape of enamel rod is______________?
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A. None of the above

B. Round

C. Key hole or paddle shaped

D. Square

127. The organic lining of the calcified dentinal tubules is known as_______________?
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A. Lamina densa

B. Lamina propria

C. Lamina lucida

D. Lamina limitans
128. Which of the following is correct?
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A. Cementum is more resistant to resorption than bone

B. Bone is more resistant to resorption than cementum

C. Both are equally resorbable

D. None of the above

129. The shallow furrows on the enamel surface, where stria of Retzius end are known as _______________ ?
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A. Pellicle

B. Enamel lamellae

C. Cracks

D. perikymata
130. The average life time of primary pulp in oral cavity is__________?
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A. 3 years

B. 8.3 years

C. 7 years

D. 2 years

131. Synthesis of enamel matrix proteins occurs in the________________?
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A. Ameloblast

B. Stratum granulosum

C. Stratum intermedium

D. Outer enamel epithelium

132. Collagen biosynthesis occurs inside the______________?
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A. Chondroblasts

B. Fibroblasts

C. Osteoblasts

D. Odontoblasts

133. Alveolar process helps in providing_____________?
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A. Support the natural teeth

B. Support and retention to the complete denture

C. Boundaries for the tongue during speech

D. Attachment to muscles of facial expression

134. The cementuoenamel junction is approximately at the level at which the root canal becomes_____________?
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A. Pulp chamber

B. Lateral canal

C. Twisted

D. Curved

135. The number of pulp organs in a person in___________?
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A. 62

B. 32

C. 52

D. 50

136. Order of development of tooth germ is____________?
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A. Cap-bell-bud

B. Bell-bud-cap

C. Bud-cap-bell

D. Bell-cap-bud

137. Which of the following anomalies occur during the initiation and proliferation of tooth development ?
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A. Oligodontia

B. Enamel hypoplasia

C. Amelogenisis imperfecta

D. Dentinogenesis imperfecta

138. In a dried skull, holes on the lingual aspects of the deciduous teeth are called_____________?
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A. Canals of Hirchfeld and Zuckerland

B. Herversian canals

C. Volkmann canals

D. Gubernacular canals
139. Dental lamina is active up to_______________?
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A. 1 year

B. 3 years

C. 4 years

D. 2 years

140. Specific gravity of enamel is_____________?
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A. 4.8

B. 2.8

C. 2.3

D. 3.8