Dental Materials Strength Quiz
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Questions and Answers

Which property is particularly important in the process of mastication because many of the forces of mastication are compressive?

  • Impact strength
  • Shear strength
  • Compressive strength (correct)
  • Diametral tensile strength
  • What should restorative materials have to withstand forces of mastication?

  • High compressive strength (correct)
  • High shear strength
  • Low compressive strength
  • High diametral tensile strength
  • Which test should be used for brittle materials to determine the tensile strength property?

  • Uniaxial tension test
  • Impact strength test
  • Diametral compression test (correct)
  • Compressive strength test
  • What type of deformation should materials exhibit primarily for the diametral compression test to be applicable?

    <p>Elastic deformation only</p> Signup and view all the answers

    What is important for comparing brittle materials such as dental amalgam, resin composites, and cements?

    <p>Compressive strength</p> Signup and view all the answers

    What property is important for dental polymer such as flexible impression materials, maxillofacial materials, and resilient denture liners?

    <p>Tear strength</p> Signup and view all the answers

    Which test determines not only the strength of the material indicated but also the amount of distortion expected?

    <p>Three-point bending test</p> Signup and view all the answers

    What is the maximum stress that a material can withstand before failure in a shear mode of loading?

    <p>Shear strength</p> Signup and view all the answers

    What type of materials have low resistance to breakage when load is applied by impact?

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

    In which method for measuring impact strength is the specimen supported horizontally at the two ends?

    <p>Charpy Impact Test</p> Signup and view all the answers

    In the testing of brittle dental materials, which property is particularly important for comparing materials such as dental amalgam, resin composites, and cements?

    <p>Compressive strength</p> Signup and view all the answers

    Which property should restorative materials have in order to withstand the forces of mastication?

    <p>Compressive strength</p> Signup and view all the answers

    For which type of material should the diametral compression test be used to determine the tensile strength property?

    <p>Elastomeric impression materials</p> Signup and view all the answers

    What type of deformation should materials primarily exhibit for the diametral compression test to be applicable?

    <p>Elastic deformation</p> Signup and view all the answers

    What type of forces are particularly important in the process of mastication, making compressive strength an essential property for restorative materials?

    <p>Compressive forces</p> Signup and view all the answers

    What property is particularly important in comparing denture base materials subjected to biting stress during mastication and in long bridge spans?

    <p>Transverse strength</p> Signup and view all the answers

    Which test is used to determine the maximum stress a material can withstand before failure in a shear mode of loading?

    <p>Impact strength test</p> Signup and view all the answers

    What type of deformation should materials primarily exhibit for the diametral compression test to be applicable?

    <p>Shear deformation</p> Signup and view all the answers

    What is the minimum force required to initiate tearing of a crescent or trouser shaped specimen known as?

    <p>Tear strength</p> Signup and view all the answers

    Which method for measuring impact strength involves supporting the specimen vertically at one end?

    <p>Izod Impact Test</p> Signup and view all the answers

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