oral histology MCQs – Page 19

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

oral histology Mcqs

361. The deciduous teeth can be differentiated from permanent teeth by_____________?
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A. Dentinal tubule arrangement

B. Enamel prismatic arrangement

C. Mineral content

D. Primary and secondary dentin

362. Keratohyaline granules are more evident in_______________?
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A. Keratinised

B. Orthokeratinized

C. Parakeratinised

D. Non keratinized

363. Protein making up the bulk of keratohyaline granules in stratum granulosum of keratinized epithelium is______________?
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A. Filaggrin

B. Nectin

C. Involucrin

D. Vinculin

364. The cells, which are responsible for removal of bone matrix in bone resorption, are_____________?
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A. Osteoblast

B. Osteoclasts

C. Fibrocytes

D. Polymorphs

365. Which of the following statement is false______________?
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A. Resorption of roots of deciduous incisors and canines begins on their lingual surfaces

B. Resorption of roots of deciduous molars begins on their inner surfaces

C. Shedding of deciduous teeth is delayed in the absence of their successor teeth

D. None of the above

366. The anatomic crown is shorter than the clinical crown of a tooth in which of the following instances___________________?
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A. Occlusal wear

B. Gingival recession

C. Impaction

D. Gingivitis

367. Gubernacular canal and gubernacular cord are seen in relation to____________?
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A. Succedaneous teeth

B. None of the above

C. Deciduous teeth

D. Permanent teeth

368. After the eruption of crown, reduced enamel is known as_____________?
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A. Reduced enamel epithelium

B. Primary attachment epithelium

C. Secondary attachment epithelium

D. Primary enamel cuticle

369. Teeth with out antagonist if erupt is called____________?
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A. Supra erupted

B. Over erupted

C. Submerged

D. Stable

370. Which of the following is correct_______________?
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A. Parakeratinished epithelium is characterized by superficial cells with pyknotic nuclei and absence of stratum granulosum

B. Non-keratinized epithelium is characterized by absence of stratum granulosum and stratum corneum, The surface cells are nucleated

C. In ortho keratinisation the superficial cells lose their nuclei, but stratum granulosum is present

D. All of the above

371. The connective tissue of the gingiva is known as the______________?
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A. Lamina propria

B. Dental cuticle

C. Fibroblasts

D. Lamina dura

372. Stratum Germinativum of the oral epithelium is the term given to_______________?
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A. Basal cells and parabasal spinous cells

B. Granular cell layer

C. Basal cell layer

D. Spinous cells and granular cells

373. In the tongue bitter taste is more perceived at_____________?
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A. Back

B. Sides

C. Tip

D. Front

374. Color of the normal gingiva is_____________?
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A. Red

B. None of the above

C. Coral pink

D. Pink

375. A suitable fixative for a routine biopsy specimen is_____________?
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A. 20% formalin

B. 40% formalin

C. 10% formalin

D. 10% alcohol

376. Masticatory mucosa in the oral cavity covers the_______________?
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A. Alveolar mucosa and vestibular fornix

B. Lip and cheek

C. Gingiva and hard palate

D. Floor of the mouth and soft palate

377. Dendritic cell located in the stratified squamous keratinizing epithelium of the oral cavity include_____________?
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A. Keratinocytes

B. Myoepithelila cells

C. Mast cells

D. Melanocytes

378. The most accepted theory of tooth eruption is____________?
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A. Hydrodynamic theory

B. Clone theory

C. Periodontal ligament traction theory

D. Vascular theory

379. Which enzyme is associated with the mineralization_____________?
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A. Acid phosphatase

B. Adenosine triphosphate

C. Alkaline phosphatase

D. Amino peptidase

380. Osteoblasts appear basic gram staining due to______________?
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A. Acidic ground substance

B. Presence of basic ground substance

C. Increased mitochondria

D. Increased ribonucleic acid

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