Dental Materials

  1. in the amalgam restoration which of the following elements has the most effect on corrosion reduction?

    B. copper (Cu)
  2. In the amalgam restoration the two main components are

    C. silver and mercury
  3. why should all remnants of amalgam be removed form the placement instruments before they are autoclaved?

    • B. blah blah blah blah blah...okay not really its
    • C. the heat causes mercury vapor t be released from the amalgam
  4. the strength of the amalgam restoration can be affect by

    D. all of the above
  5. a properly mixed amalgam should appear

    B. as a homogeneous mass with a slight shine
  6. scrap amalgam should be

    B. stored under water in a sealed container
  7. with high copper alloys, which metal reacts with copper to reduce gamma2 phase corrosion

    A. tin
  8. the fact that mercury makes up almost half of the amalgam has caused concerns about

    D. all of the above
  9. amalgam has been popular for restorations of carious teeth because
    a it is economical
    b. it has excelletn physical properties
    c. it is easy to manipulate
    d. all of the above
    d. all of the above
  10. bonding an amalgam during placement of a resoration

    B. seals the margins and reduces microleakage
  11. how dose tarnish differ from coorosion?

    B. tarnish occurs on the surface
Card Set
Dental Materials
ch 9 review questions