dental materials

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Author:
cassiedh
ID:
74888
Filename:
dental materials
Updated:
2011-03-23 22:56:14
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ch6reviewquestions
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Description:
chapter 6 review questions
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  1. for a composite to have greater wear resistance it needs
    A. to have larger filler particles
    B. to have a higher filler content
    C. to be light cured
    D. a higher oplish
    B. to have higher filler content
    (this multiple choice question has been scrambled)
  2. composite resins are often classified according to their
    A. strength
    B. polishability
    C. resin content
    D. filler partical size
    D. filler partical size
    (this multiple choice question has been scrambled)
  3. the shortcomings of flowable composites as compared with hybrid composites include all of the following except one:
    A. they are more difficult to polish
    B. they shrink more when polymerized
    C. they are weaker
    D. they wear faster
    A. they are more difficult to polish
    (this multiple choice question has been scrambled)
  4. the purpose of a silane coupling agent for composite resins is
    A. to improve the bond between the filler particles and the resin matrix
    B. to help the composite retain the color
    C. to reduce the oxygen inhibited layer
    D. to help the various layers stick together
    A. to improve the bond between the filler particles and the resin matrix
    (this multiple choice question has been scrambled)
  5. the curing light requires repair
    A. if a 2 mm thick piece of composite does not cure through the bottom at the recommeded exposure time
    B. if it icauses a slower set of a dark color composite
    C. if it has not been tested
    D. if the light appears blue
    A. if a 2 mm thick piece of composite does not blah blah blah read it above
    (this multiple choice question has been scrambled)
  6. the polymerization shrinkage of a composite
    A. is greater than 10% in volume
    B. has no effect on the final restoration
    C. is cause for alarm
    D. can be minimized by placing and curing a series of small increments
    D. can be minimized by placing and curing a series of small increments
    (this multiple choice question has been scrambled)
  7. t/f all composite resorative materials appear the same on radiographs of teeth
    FALSE
  8. one of the advantages of glass ionomer is
    A. because it contains water, it does not need to have a dry field for insertion into a cavity
    B. ability to finish it immediately
    C. has a higher sstrength thatn composite because of glass fillers
    D. that it has been shown to release fluoride
    D. that it has been shown to release fluoride
    (this multiple choice question has been scrambled)
  9. hybrid (resin modified) glass ionomers have all of the following advantages over conventional glass ionomers except one:
    A. contains quartz fillers like some composites
    B. can be finished the same appt
    C. stronger
    D. less sensitive to moisture when set
    A. contains quartz fillers like some composites
    (this multiple choice question has been scrambled)
  10. compomer restorative materials
    A. are only self cure resins
    B. release as much fluoride as glass ionomer materials
    C. are like glass ionomers in that they do not require a separate bonding agent
    D. are closer to composite resins in their makeup than to glass ionomers
    D. are closer to composite resins in theri makeup than to glass ionomerss
    (this multiple choice question has been scrambled)

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