Enamel Dentin & Pulp

42 Questions | Total Attempts: 381

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Enamel Dentin & Pulp

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Questions and Answers
  • 1. 
    Dentin and pulp cannot be seen clinically unless the teeth & associated periodontium are unhealthy.
    • A. 

      True

    • B. 

      False

  • 2. 
    What layer of the tooth makes up the bulk of teeth?
  • 3. 
    What basic color is dentin mainly?
  • 4. 
    Dentin cannot be removed
    • A. 

      True

    • B. 

      False

  • 5. 
    Enamel appears more _________ than dentin
    • A. 

      Radiopaque

    • B. 

      Radiolucent

    • C. 

      Softer

    • D. 

      Yellow

  • 6. 
    The process of dentin matrix formation
  • 7. 
    Tissue fluid surrounding the cell membrane of the odontoblast in the dentinal tubules
    • A. 

      Basement membrane

    • B. 

      Plasma membrane

    • C. 

      Dentinal fluid

    • D. 

      Dentinal tubule

  • 8. 
    Nutrition for dentin comes from....
    • A. 

      It's own blood vessels

    • B. 

      Through tissue fluid through tubules from pulp

    • C. 

      White blood cells

    • D. 

      Blood vessels from adjacent enamel

  • 9. 
    Dentin types are determined by their ______________
  • 10. 
    This type of dentin is around the outer pulpal wall & parallel to the DEJ
  • 11. 
    This type of dentin continues to form throughout the life of the tooth.
  • 12. 
    This type of dentin is a type of tertiary dentin often found in chronic injury of caries.
    • A. 

      Tertiary

    • B. 

      Primary

    • C. 

      Peritubular

    • D. 

      Sclerotic

  • 13. 
    Attrition is the wearing away from tooth to tooth contact
    • A. 

      True

    • B. 

      False

  • 14. 
    Checkmark all of the functions of pulp
    • A. 

      Sensory structure for pain

    • B. 

      Protection

    • C. 

      Nutrional supply for itself & dentin

    • D. 

      Creates odontoblasts from fibroblasts

    • E. 

      Immune response & inflammation by WBCs

  • 15. 
    The _________ canal is an opening to the PDL and also known as a lateral canal.
  • 16. 
    Accessory canals form when HERS encounters a nerve
    • A. 

      True

    • B. 

      False

  • 17. 
    Checkmark all the features of pulp
    • A. 

      Elastic fibers

    • B. 

      Collagen fibers

    • C. 

      Reticular fibers

    • D. 

      Connective tissue

    • E. 

      Mesenchymal stem cells

    • F. 

      Ectodermal cells

  • 18. 
    Fibroblasts are the largest group of cells in pulp & Odontoblasts are the second largest.
    • A. 

      True

    • B. 

      False

  • 19. 
    The ________ layer of pulp is next to dentin.
  • 20. 
    Calcified masses of dentin complete with tubules and processes
  • 21. 
    Inflammation of the pulp caused by injury
  • 22. 
    The hardest calcified tissue in the body
  • 23. 
    Enamel cannot be removed
    • A. 

      True

    • B. 

      False

  • 24. 
    Enamel can endure _________ lbs PSI
    • A. 

      100

    • B. 

      100,000

    • C. 

      1000

    • D. 

      10

  • 25. 
    Dentin & pulp are more radio_______ than enamel on radiographs.
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