medical MCQs – Page 161

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

3201. The relationship between the pulpal and periodontal tissue complex begins during dental development at_____________?
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A. None of the above

B. Embryonic stage

C. Adolescent stage

D. 5-10 years

3202. Periodontal ligament is made up of____________?
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A. Type I and Type II collagen

B. Type I collagen

C. Type I and Type III collagen

D. Type I and Type IV collagen

3203. Sclerotic dentin has following features_____________?
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A. Caries susceptible

B. Resistant to caries

C. Insensitive

D. Hypersensitive

3204. Size of pulp chamber____________?
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A. Increases with age

B. Decreases with age

C. Increased in some cases and decreases in some cases

D. None of the above

3205. The type of bone present in the labial area of anterior teeth is_______________?
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A. Osteophytics

B. Cancellous

C. Cortical

D. Exophytic

3206. Regarding teeth which statement is wrong ?
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A. Enamel is harder than dentine

B. Enamel has no cells

C. Odontoblast produce dentin

D. Ameloblast secrete enamel and dentine

3207. The diameter of the largest arterial vessels in the pulp range from_____________?
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A. 201-250 ?m

B. 151-200 ?m

C. 101-150 ?m

D. 50-100 ?m

3208. The cell free zone in pulp lies____________?
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A. In radicular pulp

B. Above odontoblast

C. In pulp horn

D. Below odontoblast

3209. Mature bone is otherwise called as______________?
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A. woven bone

B. Resorbing bone

C. Lamellar bone

D. Irregular bone

3210. Mandible develops by______________?
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A. Endochondral ossification only

B. Membranous ossification only

C. Both of the above

D. None of the above

3211. Organic portion can be separated from the mineral by_____________?
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A. Devitrification

B. Combustion

C. Incineration/organic chelation

D. Decalcification

3212. The main function of horizontal fibres of P.D ligament is____________?
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A. All of the above

B. Prevent rotation

C. Maintains the mesiodistal width

D. Prevent extrusion

3213. Following is derivative of dental lamina____________?
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A. All of the above

B. Enamel pearls

C. Epithelial rests of Malassez

D. Rests of serrae

3214. Principal fibres of periodontal ligament are attached to_____________?
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A. Cortical bone

B. Lamellar bone

C. Bundle bone

D. Alveolar bone proper

3215. Anchoring fibrills are composed of_____________?
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A. Type IV collagen

B. Type V and VII collagen

C. Type IV and III Collagen

D. Type I and III collagen

3216. The type of epithelium lining maxillary sinus is_______________?
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A. Stratified squamous

B. Simple columnar

C. Pseudo stratified columnar and cilliated

D. Simple squamous

3217. Vitality of pulp depends on________________?
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A. Blood supply

B. Nerve supply

C. Lymphatic supply

D. All of the above

3218. The neutralization of saliva is due to______________?
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A. Bicarbonates

B. Amino acids

C. Mucin

D. Ammonia

3219. Cementicles are found in the_____________?
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A. Cementum

B. Gingiva

C. Periodontal ligament

D. Alveolar bone

3220. Matrix vesicles_______________?
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A. Inhibit mineralization

B. Produce alkaline phosphatase

C. Are found in mantle dentin

D. Contain collagen

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