Prosthetic Impression Technique
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Prosthetic Impression Technique

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Questions and Answers

Why are the nasal passages packed with cotton during the impression-taking process?

  • To instruct the patient to keep their eyes closed
  • To prevent the entry of the impression material (correct)
  • To ensure the impression material reaches all required regions
  • To provide backing and support for the impression material
  • What material is applied over the impression material to provide backing and support?

  • Irreversible hydrocolloid
  • Dental plaster (correct)
  • Poly vinyl siloxane
  • Die stone
  • What is the primary purpose of inspecting the impression carefully after removal?

  • To prepare the impression for the pouring of die stone
  • To ensure the patient's eyes are closed
  • To determine the size and shape of the prosthesis
  • To check for any defects or errors in the impression (correct)
  • How is the size and shape of the prosthesis typically determined?

    <p>From all of the above</p> Signup and view all the answers

    What is the purpose of applying a thick layer of dental plaster over the impression material?

    <p>To provide backing and support for the impression material</p> Signup and view all the answers

    What is the next step after removing the impression from the patient?

    <p>Inspecting the impression carefully</p> Signup and view all the answers

    What can be used as a starting point for modeling a wax pattern?

    <p>A cast of a normal nose from another person</p> Signup and view all the answers

    How can the prosthesis junction with the skin be hidden?

    <p>By reducing the peripheral outline of the prosthesis to fall along a natural groove or crease</p> Signup and view all the answers

    Why is it essential to try the wax sculpture on the patient?

    <p>To see if it fits properly and looks well on the face</p> Signup and view all the answers

    How can the wax pattern be temporarily held on the face?

    <p>With small pieces of transparent adhesive tape</p> Signup and view all the answers

    What can be made on the wax pattern while it rests on a full facial cast?

    <p>Appropriate grooves to receive spectacles</p> Signup and view all the answers

    What is a benefit of using a cast of a normal nose from another person?

    <p>It gives something definite to start with</p> Signup and view all the answers

    What is the primary purpose of a temporary nasal prosthesis?

    <p>To provide early rehabilitation for the nasal defect during the healing process</p> Signup and view all the answers

    How long is the definitive or permanent nasal prosthesis worn for?

    <p>For a long period of time after the healing period</p> Signup and view all the answers

    What is the correct position of the patient during the impression procedure?

    <p>Semi-supine position</p> Signup and view all the answers

    Why is petroleum jelly applied to the patient's eyebrows and eyelashes?

    <p>To prevent the flow of material into the undesired areas of the defect</p> Signup and view all the answers

    What is the purpose of moist gauze during the impression procedure?

    <p>To prevent the flow of material into the undesired areas of the defect</p> Signup and view all the answers

    What is the extent of the nasal impression?

    <p>From the frontal bone to the upper lip, and from tragus of left ear to tragus of right ear</p> Signup and view all the answers

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