Oral Biology Exam-3 (Quiz MCQ)

10 Questions | Total Attempts: 1434

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MCQ Quizzes & Trivia

10/4--------------15/4: Exam 3:Quiz (MCQ in: all studied subjects + Data show of histological slides).


Questions and Answers
  • 1. 
    Shedding is predominantly the:
    • A. 

      Physiologic loss of impacted teeth.

    • B. 

      Pathologic loss of non-vital primary teeth.

    • C. 

      Physiologic loss of permanent teeth.

    • D. 

      Physiologic loss of primary teeth.

  • 2. 
    The downgrowth of an epithelial thickening buccal to the dental lamina is known as:
    • A. 

      Vestibular lamina.

    • B. 

      Linguo-alveolar Sulcus.

    • C. 

      Lateral dental lamina.

    • D. 

      Successional dental lamina.

  • 3. 
    Which would not be present in a ground section?
    • A. 

      Inorganic crystals.

    • B. 

      Odontoblast.

    • C. 

      Interglobular space.

    • D. 

      Dentinal tubules.

  • 4. 
    When prismless enamel is formed, the secretory ameloblast does not contain:
    • A. 

      Rough endoplasmic reticulum.

    • B. 

      Tome's process.

    • C. 

      Tome’s fibers.

    • D. 

      Secretory granules.

  • 5. 
    Calcified tissues of the tooth are derived from:
    • A. 

      Ectoderm only.

    • B. 

      Endoderm only.

    • C. 

      Mesoderm only.

    • D. 

      Ectoderm & Mesoderm.

  • 6. 
    Neonatal lines are present in:
    • A. 

      All permanent teeth.

    • B. 

      Permanent canines.

    • C. 

      All deciduous & first permanent molar.

    • D. 

      Premolars.

  • 7. 
    Which of the following occurs during the early stage of eruption of a tooth:
    • A. 

      Differentiation of the stratum intermedium.

    • B. 

      Formation of the dental sac.

    • C. 

      Formation of stellate reticulum.

    • D. 

      Maturation of enamel.

  • 8. 
    During shedding of deciduous teeth, the pulp:
    • A. 

      Plays an active role in the process.

    • B. 

      Show sings of degeneration throughout.

    • C. 

      Contain pulp stones.

    • D. 

      Remains vital.

  • 9. 
    In a developing tooth, if Hertwig's sheath and the epithelial diaphragm were cut before odontoblasts diffrentiation, the resulting tooth would exhibit:
    • A. 

      No radicular dentin.

    • B. 

      Intermediate cementum.

    • C. 

      Bare dentin.

    • D. 

      Accessory root canals.

  • 10. 
    Hypocalcified areas in enamel are:
    • A. 

      Enamel spindles.

    • B. 

      Dentino-enamel junction.

    • C. 

      Interprismatic substances.

    • D. 

      Enamel tufts.