Crown & Bridge An Introduction to Fixed Prosthodontics Quiz
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Questions and Answers

Which type of crown replaces the natural crown entirely and retains itself by means of a dowel extended inside the root canal space?

  • Three-quarter crown
  • Non-metal crown
  • Post crown (correct)
  • Metal crown
  • What is the purpose of a bridge in dentistry?

  • To change the position of teeth
  • To remove natural teeth
  • To support crowns
  • To restore the function and aesthetics of missing teeth (correct)
  • What is the part of a bridge that joins the individual components of the bridge together?

  • Retainer
  • Pontic
  • Abutment tooth
  • Connector (correct)
  • What material is a metal crown typically made from?

    <p>Gold alloy</p> Signup and view all the answers

    Which type of crown covers all tooth surfaces except the buccal surface?

    <p>Three-quarter crown</p> Signup and view all the answers

    What is the purpose of a retainer in a dental bridge?

    <p>To cover the abutment tooth</p> Signup and view all the answers

    Which material is NOT commonly used in making non-metal crowns?

    <p>Gold alloy</p> Signup and view all the answers

    How is a post crown retained inside the tooth?

    <p>Using a dowel extended inside the root canal space</p> Signup and view all the answers

    What is the function of a pontic in a dental bridge?

    <p>To occupy the position of missing natural teeth</p> Signup and view all the answers

    What is the recommended axial wall depth for a Modified Class V restoration?

    <p>0.2mm</p> Signup and view all the answers

    Which type of lesion is indicated for a Modified Class V restoration?

    <p>Lesion entirely in enamel</p> Signup and view all the answers

    When preparing a tooth for a Modified Class V restoration, what type of wall depth is preferred?

    <p>Divergent wall</p> Signup and view all the answers

    Which instrument should be used to prepare the tooth in a Modified Class V restoration?

    <p>Round or elliptical instrument</p> Signup and view all the answers

    In a Modified Class V restoration, what is NOT indicated when preparing the cavity?

    <p>Retention groove</p> Signup and view all the answers

    What should be used to protect adjacent unprepared teeth from acid etchant during a Class V restoration?

    <p>Polyester strip</p> Signup and view all the answers

    How long should etchant be left undisturbed on the tooth surface during a Class V restoration?

    <p>15 seconds</p> Signup and view all the answers

    What is the purpose of using a polishing cup with pumice in restorative dentistry?

    <p>To clean tooth preparation</p> Signup and view all the answers

    In a Modified Class V restoration, what type of margins are NOT prepared during cavity preparation?

    <p>90 degrees cavosurface</p> Signup and view all the answers

    What is the recommended initial depth of the preparation in a Modified Class V restoration?

    <p>0.2 mm</p> Signup and view all the answers

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