Tooth Development Stages and Dentine Formation Quiz
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Questions and Answers

Where is dentine formed?

  • Bell stage (correct)
  • Root formation stage
  • Bud stage
  • Cap stage
  • What is the mineral content of a tooth?

  • 96% inorganic, 4% organic (correct)
  • 100% inorganic
  • 90% inorganic, 10% organic
  • 80% inorganic, 20% organic
  • Which inherited condition is associated with enamel malfunction?

  • Amelogenesis imperfecta (correct)
  • Dentinogenesis imperfecta
  • Hertswigs epithelial root sheath
  • Malassez cysts
  • When is root formation complete?

    <p>2-3 years after eruption</p> Signup and view all the answers

    What causes pathological cysts in the jaw?

    <p>Rests of Malassez remaining</p> Signup and view all the answers

    Which stage of tooth development involves the formation of enamel?

    <p>Bell stage</p> Signup and view all the answers

    What are the functional units of enamel called?

    <p>Prisms/Rods</p> Signup and view all the answers

    Which component makes enamel dissolvable in acid?

    <p>Hydroxide</p> Signup and view all the answers

    What is the critical pH level at which demineralization of teeth occurs?

    <p>5.5</p> Signup and view all the answers

    Which protein makes up approximately 90% of the dentine protein matrix?

    <p>Collagen</p> Signup and view all the answers

    What is the membrane that covers the entire portion of a newly erupted crown and gets removed by mastication?

    <p>Enamel cuticle</p> Signup and view all the answers

    What happens when the concentration of calcium and phosphate decrease in the tooth environment?

    <p>The tooth will leaching out minerals to make a balance which causes the tooth to be weaker.</p> Signup and view all the answers

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