medical MCQs – Page 505

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 Review each marked answer and report any item that may be outdated or unclear.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

10081. Regarding teeth which statement is wrong ?
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A. Enamel is harder than dentine

B. Odontoblast produce dentin

C. Enamel has no cells

D. Ameloblast secrete enamel and dentine

10082. Which of the following dentinal layers is more mineralized______________?
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A. Inter tubular dentin

B. Peritubular dentin

C. Dentinal tubules

D. Circum pulpal dentin

10083. The total volumes of all permanent pulp organ______________?
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A. 0.38 cc

B. 3.8 cc

C. 0.02 cc

D. 0.58 cc

10084. The pain transmission through dentin is______________?
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A. Fluid or hydrodynamic theory

B. All of the above

C. Direct neural stimulation

D. Transduction theory

10085. Intermediate plexus is absent in which of the following principle fibres_____________?
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A. Horizontal

B. Transseptal

C. Oblique

D. Gingival

10086. In cap stage, regulating factor for cusp shape formation is present in____________?
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A. Enamel Knot

B. Inner enamel epithelium

C. Dental papilla

D. Dental follicle

10087. Which dental tissue doesnt contain nerves ?
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A. Cementum

B. Dentin

C. Pulp

D. Bone

10088. Sclerotic dentin has following features_____________?
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A. Insensitive

B. Caries susceptible

C. Resistant to caries

D. Hypersensitive

10089. Group of fibres, which resist the masticatory forces___________?
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A. Oblique

B. Dentogingival

C. Transeptal

D. Horizontal

10090. Cementum is_____________?
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A. None of the above

B. Vascular

C. Avascular

D. Has blood supply initially only

10091. Tomes firbres are____________?
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A. Originate from tomes granular layer

B. Type of sharpeys fibres

C. Odontoblastic processes in dental tubules

D. With out but not with in the dentin

10092. All of the following cells of periodontal ligament are of mesenchymal origin except______________?
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A. Cell rests of malassez

B. Fibroblasts

C. Multi totipotent cells

D. Cementoblasts

10093. The type of fibrous element in enamel is_____________?
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A. Keratin like fibre

B. Vimentin filament

C. Collagen fibre

D. Tono filament

10094. A special feature of the periodontal ligament fibroblasts is______________?
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A. size of the cells

B. The number or organelles

C. Presence of actin fibres and shape change

D. Collagen fibre formation

10095. Which of the following structures is not found in a living pulp ?
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A. Non-myelinated nerve fibres

B. Collagen fibres

C. Reticulum

D. Haversian fibres

10096. All are true regarding the enamel spindles except____________?
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A. Terminate as rounded process

B. Produced by ameloblasts

C. Surrounded by inter prismatic enamel

D. Found in the region of cusps

10097. The most abundant group of fibres in the PDL are_____________?
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A. Apical

B. Oblique

C. Horizontal

D. Trans-septal

10098. Reestablishing the former outline of the root surface is_____________?
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A. Physiological repair

B. Hyperplasia

C. Anatomic repair

D. Functional repair

10099. Histologically the dental pulp most closely resembles______________?
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A. Vascular tissue

B. Nerve tissue

C. Loose connective tissue

D. Granulation tissue

10100. The main bulk of dentin is formed by______________?
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A. Predentin

B. Inter tubular dentin

C. Peritubular dentin

D. Mantle dentin

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