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Impression Compound in Dentistry
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Impression Compound in Dentistry

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Questions and Answers

What is the thermoplastic behavior of dental impression compound?

  • Softens by cooling and hardens by heating
  • Softens and hardens at room temperature
  • Undergoes no change in temperature
  • Softens by heating and hardens by cooling (correct)

    • What is the primary use of Type I impression compound?

  • Modeling acrylic special tray
  • Recording primary impressions (correct)
  • Tracing of green compound
  • Supporting other impression material

    • What is the characteristic of Type II impression compound?

  • Used for modeling acrylic trays
  • Low fusing, softens at 45-55o C
  • High fusing, softens at 70o C (correct)
  • Non-thermoplastic

    • In what form can dental impression compound be presented?

    <p>Sticks, cakes, and cones</p> Signup and view all the answers

    Which impression material is suitable for recording primary impressions for edentulous patients?

    <p>Type I impression compound</p> Signup and view all the answers

    What is a disadvantage of using Type II impression compound?

    <p>Limited rigidity</p> Signup and view all the answers

    Which type of impression compound is used as tray material to carry other impression materials?

    <p>Type II</p> Signup and view all the answers

    What makes dental impression compound a thermoplastic material?

    <p>It can be repeatedly softened and hardened with temperature changes.</p> Signup and view all the answers

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