Composite Resin Materials Quiz
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Questions and Answers

What is the main factor that determines the bond (retention) of composite resin to the tooth structure?

  • Mechanical retention through undercut.
  • Micromechanical retention through micropores produced by acid etching. (correct)
  • Micromechanical retention through macro pores produced by acid etching.
  • Chemical bond (adhesion).

    • What is the main difference between micro-filled & flowable composites and micro-hybrid & nano-filled composites?

  • Micro-filled & flowable composites have high filler loading, while micro-hybrid & nano-filled composites have low filler loading.
  • Micro-filled & flowable composites have low strength & wear resistance, while micro-hybrid & nano-filled composites have high strength & wear resistance.
  • Micro-filled & flowable composites have low filler loading, while micro-hybrid & nano-filled composites have high filler loading. (correct)
  • Micro-filled & flowable composites have high strength & wear resistance, while micro-hybrid & nano-filled composites have low strength & wear resistance.

    • What is the main difference between the bond (retention) of amalgam and glass ionomer to the tooth structure?

  • The bond of amalgam depends on micromechanical retention through micropores produced by acid etching, while the bond of glass ionomer depends on micromechanical retention through macro pores produced by acid etching.
  • The bond of amalgam depends on mechanical retention through undercut, while the bond of glass ionomer depends on chemical bond (adhesion). (correct)
  • The bond of amalgam depends on chemical bond (adhesion), while the bond of glass ionomer depends on mechanical retention through undercut.
  • The bond of amalgam depends on mechanical retention through undercut, while the bond of glass ionomer depends on micromechanical retention through micropores produced by acid etching.

    • What is the main factor that determines the mechanical properties of micro-filled and flowable composites?

    <p>Low filler loading</p> Signup and view all the answers

    What is the main factor that determines the bond (retention) of composite resin to the tooth structure?

    <p>Micromechanical retention through micropores</p> Signup and view all the answers

    The higher the filler loading in a composite, the lower its mechanical properties.

    <p>False</p> Signup and view all the answers

    What is the main factor that determines the bond (retention) of amalgam to the tooth structure?

    <p>Mechanical retention through undercut</p> Signup and view all the answers

    The retention of composite resin to the tooth structure is dependent on micromechanical retention through micropores.

    <p>True</p> Signup and view all the answers

    Compomer has higher wear resistance than composite resin.

    <p>False</p> Signup and view all the answers

    Study Notes

    Retention of Composite Resin to Tooth Structure

    • The main factor that determines the bond (retention) of composite resin to the tooth structure is micromechanical retention through micropores.

    Types of Composites

    • Micro-filled & flowable composites are different from micro-hybrid & nano-filled composites.
    • The main difference lies in their composition and properties.

    Retention of Amalgam and Glass Ionomer

    • The main difference between the bond (retention) of amalgam and glass ionomer to the tooth structure is in their bonding mechanisms.
    • Amalgam relies on mechanical retention, while glass ionomer uses chemical bonding.

    Mechanical Properties of Composites

    • The main factor that determines the mechanical properties of micro-filled and flowable composites is the type and amount of filler loading.
    • A higher filler loading in a composite corresponds to lower mechanical properties.

    Comparative Properties

    • Compomer has higher wear resistance than composite resin.

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    Description

    Test your knowledge on composite resin materials with our quiz on Micro-filled & flowable composites versus Micro-hybrid & nano-filled composites. Learn about the differences in filler loading and resulting mechanical properties, and understand the importance of micromechanical retention for successful bonding to tooth structure. Take the quiz now and become an expert on composite resins!

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