Mastering Class I Amalgam Restorations
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Questions and Answers

What is dental amalgam composed of?

  • Gold and mercury
  • Silver-tin-copper alloy and mercury (correct)
  • Silver and mercury
  • Silver-tin-copper alloy and gold

    • What are the advantages of dental amalgam?

  • Aesthetically pleasing, easy to apply, and conservative to sound tooth structure
  • Strength, longevity, ease of use, and self-sealing properties (correct)
  • Non-toxic, non-corrosive, and easy to remove
  • Non-insulating, non-esthetic, and less conservative to sound tooth structure

    • In which type of defects is dental amalgam indicated?

  • Moderate to large class I and II defects that are not aesthetically important (correct)
  • Class III and IV defects
  • Moderate to large class I and II defects that are aesthetically important
  • Small to moderate class I and II defects

    • What are the disadvantages of dental amalgam?

    <p>Non-insulating, non-esthetic, and less conservative to sound tooth structure</p> Signup and view all the answers

    In which type of defects is dental amalgam contraindicated?

    <p>Moderate to large class I and II defects that are aesthetically important</p> Signup and view all the answers

    What is involved in a conservative class I amalgam restoration?

    <p>Providing resistance and retention forms and creating a flat pulpal floor</p> Signup and view all the answers

    What should be the characteristics of the primary resistance form in a class I amalgam restoration?

    <p>Flat pulpal floor, minimal extension of external walls, strong enamel margins, and sufficient depth of 1.5 to 2 mm</p> Signup and view all the answers

    What should be the characteristics of the primary retention form in a class I amalgam restoration?

    <p>Flat pulpal floor and occlusal convergence</p> Signup and view all the answers

    What is the recommended bur for conservative class I preparations?

    <p>Bur No. 245 or 330</p> Signup and view all the answers

    When is enameloplasty indicated in a class I amalgam restoration?

    <p>To eliminate any radiating fissure that is less than one-third the thickness of enamel</p> Signup and view all the answers

    What should be the cavo-surface angle of the surface left by enameloplasty in a class I amalgam restoration?

    <p>Less than approximately 100 degrees</p> Signup and view all the answers

    What is involved in the final tooth preparation in a class I amalgam restoration?

    <p>Finishing external walls and cleaning and inspecting the prepared tooth</p> Signup and view all the answers

    What is dental amalgam composed of?

    <p>Silver-tin-copper alloy and mercury</p> Signup and view all the answers

    What are the advantages of dental amalgam?

    <p>Strength, longevity, ease of use, and self-sealing properties</p> Signup and view all the answers

    What are the disadvantages of dental amalgam?

    <p>Non-insulating, non-esthetic, and less conservative to sound tooth structure</p> Signup and view all the answers

    In which type of defects is dental amalgam indicated?

    <p>Moderate to large class I and II defects that are not aesthetically important</p> Signup and view all the answers

    In which type of defects is dental amalgam contraindicated?

    <p>Moderate to large class I and II defects that are aesthetically important</p> Signup and view all the answers

    What is involved in a conservative class I amalgam restoration?

    <p>Providing resistance and retention forms and creating a flat pulpal floor</p> Signup and view all the answers

    What should be the characteristics of the primary retention form in a class I amalgam restoration?

    <p>Flat pulpal floor and occlusal convergence</p> Signup and view all the answers

    What should be the characteristics of the primary resistance form in a class I amalgam restoration?

    <p>Flat pulpal floor, minimal extension of external walls, strong enamel margins, and sufficient depth of 1.5 to 2 mm</p> Signup and view all the answers

    What is the recommended bur for conservative class I preparations?

    <p>Bur No. 245 or 330</p> Signup and view all the answers

    When is enameloplasty indicated in a class I amalgam restoration?

    <p>To eliminate any radiating fissure that is less than one-third the thickness of enamel</p> Signup and view all the answers

    What should be the cavo-surface angle of the surface left by enameloplasty in a class I amalgam restoration?

    <p>Less than approximately 100 degrees</p> Signup and view all the answers

    What is involved in the final tooth preparation in a class I amalgam restoration?

    <p>Finishing external walls and cleaning and inspecting the prepared tooth</p> Signup and view all the answers

    What is dental amalgam composed of?

    <p>Silver-tin-copper alloy and mercury</p> Signup and view all the answers

    What are the advantages of using amalgam as a restorative material?

    <p>Strength, longevity, ease of use, and self-sealing properties</p> Signup and view all the answers

    What are the disadvantages of using amalgam as a restorative material?

    <p>Non-insulating, non-esthetic, and less conservative to sound tooth structure</p> Signup and view all the answers

    In which type of defects is amalgam indicated?

    <p>Moderate to large class I and II defects that are not aesthetically important</p> Signup and view all the answers

    In which type of defects is amalgam contraindicated?

    <p>Aesthetically important areas and small to moderate class I and II defects</p> Signup and view all the answers

    What are the steps involved in conservative class I amalgam restoration?

    <p>Establishing the outline form, providing resistance and retention forms, and creating a flat pulpal floor</p> Signup and view all the answers

    What should be the characteristics of the primary resistance form in class I amalgam restoration?

    <p>Flat pulpal floor, minimal extension of external walls, strong enamel margins, and sufficient depth of 1.5 to 2 mm</p> Signup and view all the answers

    What should be the characteristics of the primary retention form in class I amalgam restoration?

    <p>Occlusal convergence</p> Signup and view all the answers

    What is the recommended bur for conservative class I preparations?

    <p>Bur No. 245 or 330</p> Signup and view all the answers

    When is enameloplasty indicated in class I amalgam restoration?

    <p>To eliminate any radiating fissure that is less than one-third the thickness of enamel</p> Signup and view all the answers

    What should be the cavo-surface angle of the surface left by enameloplasty in class I amalgam restoration?

    <p>No greater than approximately 100 degrees</p> Signup and view all the answers

    What are the final steps involved in class I amalgam restoration?

    <p>Removal of any remaining infected dentin, pulp protection, finishing external walls, and cleaning and inspecting the prepared tooth</p> Signup and view all the answers

    What is dental amalgam?

    <p>A type of filling material made of silver-tin-copper alloy and mercury</p> Signup and view all the answers

    What are the advantages of using amalgam as a restorative material?

    <p>Strength, longevity, ease of use, and self-sealing properties</p> Signup and view all the answers

    What are the contraindications for using amalgam in restorative dentistry?

    <p>Aesthetically important areas and small to moderate class I and II defects</p> Signup and view all the answers

    What is the recommended bur for conservative class I preparations?

    <p>Bur No. 245 or 330</p> Signup and view all the answers

    What is the primary retention form for conservative class I preparations?

    <p>Occlusal convergence</p> Signup and view all the answers

    What is the final step in tooth preparation for a conservative class I amalgam restoration?

    <p>Cleaning and inspecting the prepared tooth</p> Signup and view all the answers

    Study Notes

    Class I Amalgam Restorations: Techniques and Indications

    • Dental amalgam is a restorative material composed of a mixture of silver-tin-copper alloy and mercury.
    • Amalgam has advantages such as strength, longevity, ease of use, and self-sealing properties.
    • However, it also has disadvantages such as non-insulating, non-esthetic, and less conservative to sound tooth structure.
    • Amalgam is indicated for moderate to large class I and II defects that are not aesthetically important, cannot be well isolated, extend onto the root surface, need foundation, abutment for removable partial denture, or have heavy occlusion.
    • Amalgam is contraindicated in aesthetically important areas and small to moderate class I and II defects.
    • Conservative class I amalgam restoration involves establishing the outline form, providing resistance and retention forms, and creating a flat pulpal floor.
    • The primary resistance form should have a flat pulpal floor, minimal extension of external walls, strong enamel margins, and sufficient depth of 1.5 to 2 mm.
    • The primary retention form should have occlusal convergence.
    • The recommended bur for conservative class I preparations is bur No. 245 or 330.
    • Enameloplasty is indicated to eliminate any radiating fissure that is less than one-third the thickness of enamel.
    • The surface left by enameloplasty should meet the tooth preparation wall with a cavo-surface angle of no greater than approximately 100 degrees.
    • The final tooth preparation involves removal of any remaining infected dentin, pulp protection, finishing external walls, and cleaning and inspecting the prepared tooth.

    Class I Amalgam Restorations: Techniques and Indications

    • Dental amalgam is a restorative material composed of a mixture of silver-tin-copper alloy and mercury.
    • Amalgam has advantages such as strength, longevity, ease of use, and self-sealing properties.
    • However, it also has disadvantages such as non-insulating, non-esthetic, and less conservative to sound tooth structure.
    • Amalgam is indicated for moderate to large class I and II defects that are not aesthetically important, cannot be well isolated, extend onto the root surface, need foundation, abutment for removable partial denture, or have heavy occlusion.
    • Amalgam is contraindicated in aesthetically important areas and small to moderate class I and II defects.
    • Conservative class I amalgam restoration involves establishing the outline form, providing resistance and retention forms, and creating a flat pulpal floor.
    • The primary resistance form should have a flat pulpal floor, minimal extension of external walls, strong enamel margins, and sufficient depth of 1.5 to 2 mm.
    • The primary retention form should have occlusal convergence.
    • The recommended bur for conservative class I preparations is bur No. 245 or 330.
    • Enameloplasty is indicated to eliminate any radiating fissure that is less than one-third the thickness of enamel.
    • The surface left by enameloplasty should meet the tooth preparation wall with a cavo-surface angle of no greater than approximately 100 degrees.
    • The final tooth preparation involves removal of any remaining infected dentin, pulp protection, finishing external walls, and cleaning and inspecting the prepared tooth.

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    Related Documents

    Class I Amalgam Restorations PDF

    Description

    Test your knowledge on Class I Amalgam Restorations with this quiz! Learn about the techniques and indications for using dental amalgam as a restorative material. Discover the advantages and disadvantages of amalgam and understand when it is indicated or contraindicated. Test your understanding of conservative class I amalgam restoration, including establishing outline form, resistance and retention forms, and creating a flat pulpal floor. Take this quiz and see how much you know about the techniques and considerations for using amalgam

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