Dental Instrument Formula Quiz
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Questions and Answers

Which instrument formula is used when the cutting edge of the instrument is at a right angle to the blade?

  • 4 Number instrument formula
  • 2 Number instrument formula
  • 5 Number instrument formula
  • 3 Number instrument formula (correct)
  • What is the first number in the 4 Number instrument formula?

  • Angle the blade forms with the axis of the handle in centigrade
  • Length of the blade in millimeter
  • Width of the blade in tenths of a millimeter (correct)
  • Angle the cutting edge forms with the axis of the handle in centigrade
  • Which instrument is an example of the 4 Number instrument formula?

  • Gingival marginal trimmer
  • Both Gingival marginal trimmer and Angle former (correct)
  • Angle former
  • Enamel hatchet
  • What does the second number represent in the 3 Number instrument formula?

    <p>Length of the blade in millimeter</p> Signup and view all the answers

    What does the third number represent in the 4 Number instrument formula?

    <p>Angle the cutting edge forms with the axis of the handle in centigrade</p> Signup and view all the answers

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