Dental Restorative Materials Comparison
18 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What happens when the Powder/Liquid ratio of a cement decreases?

  • Decrease in strength, increase in flow and solubility (correct)
  • No change in properties
  • Increase in strength, decrease in flow and solubility
  • Increased fluoride release

    • What advantage does Resin-Modified Glass Ionomer (RMGI) have over Glass Ionomer Cement (GIC)?

  • Higher fluoride release
  • Flexible working time (correct)
  • Rapid light curing
  • Increased solubility

    • Why should cement liners and bases be placed only on dentin?

  • To speed up the setting reaction
  • To avoid fluoride release
  • To ensure complete removal from cavity walls and margins (correct)
  • To enhance esthetics

    • What consideration is important when deciding on the need for a liner or base material?

    <p>Remaining dentin thickness (RDT)</p> Signup and view all the answers

    What happens when the Powder/Liquid ratio of a cement increases?

    <p>Increase in strength, decrease in flow and solubility</p> Signup and view all the answers

    Which cement is more suitable as a liner or luting cement rather than as a base or temporary filling material?

    <p>Glass Ionomer Cement (GIC)</p> Signup and view all the answers

    Which dental material is the most rigid, tough, and durable intermediary base material?

    <p>Zinc phosphate cement (ZPC)</p> Signup and view all the answers

    Which dental material has the property of being an excellent thermal insulator when used in a thickness of 1mm or more?

    <p>Zinc phosphate cement (ZPC)</p> Signup and view all the answers

    Which dental material is the most irritating base material due to its acidic pH?

    <p>Zinc phosphate cement (ZPC)</p> Signup and view all the answers

    Under what condition is it not recommended to place Zinc phosphate cement (ZPC)?

    <p>When remaining dentin bridge is less than 1.5 mm without an underlying protective liner</p> Signup and view all the answers

    What is the main component of Zinc polycarboxylate cement (PCC) powder?

    <p>Zinc oxide</p> Signup and view all the answers

    Which dental material is supplied in the form of a powder and a liquid?

    <p>Zinc polycarboxylate cement (PCC)</p> Signup and view all the answers

    Which type of cement is composed of an acid-soluble fluoro-alumino-silicate glass powder and a liquid of polyacrylic acid (PAA)?

    <p>Glass ionomer cement</p> Signup and view all the answers

    What is the pH of the mixed setting cement after two minutes from the start of mixing?

    <p>3.4</p> Signup and view all the answers

    Which cement is weaker than phosphoric acid?

    <p>Zinc polycarboxylate cement</p> Signup and view all the answers

    Which cement has somewhat lower compressive strength than Zinc Polycarboxylate Cement (PCC)?

    <p>Glass ionomer cement</p> Signup and view all the answers

    What is the setting mechanism of Resin-Modified Glass Ionomer (RMGI) cement primarily based on?

    <p>Acid-base reaction</p> Signup and view all the answers

    What provides good thermal and electrical insulation in thickness not less than 1.5 mm?

    <p>Zinc polycarboxylate cement</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser