MATERIALS TEST 3
it may be necessary to place an insulting base under restoration to -
ANSWERS-progtect the pulp from sudden temperature changes
test for a properly mixed luting cement is - ANSWERS-checking
whether cement will hold thin string, breaking when the spatula is raised
an inch
which cement should not be used for temporary cementation of crowns
to be permanently cementedd with resin cemnts? - ANSWERS-zinc
oxide eugenol
which cement exhibits an exothermic reaction during mixing? -
ANSWERS-zinc phosphate
which dental cements use the bonding procedure before placement of the
dental cement? - ANSWERS-composite resin and glass ionomer
when luting a crown it is important to? - ANSWERS-have a film
thickness that allows for compete seating
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, TCDHA DENTAL LATEST
MATERIALS TEST 3
which dental cement bonds to dentin is "kind" to the pulp and resists
recurrent decay? - ANSWERS-glass ionomer
proper instumentation against cement margins include - ANSWERS-
avoiding gouging or ditching cement margins
which cement should not be used under composite restoration because of
the oil content of the liquid - ANSWERS-zinc oxide eugenol
adhension is molecular attraction between - ANSWERS-different
molecules
Self-curing is a process whereby a chemical reaction occurs when 2
resins, a base with chemical activators and a catalyst, are mixed
together? - ANSWERS-True
Moisture contamination contributes to ineffective bonding? -
ANSWERS-True
Enamel bonding is stronger than dentin bonding? - ANSWERS-True
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, TCDHA DENTAL LATEST
MATERIALS TEST 3
Composite resins light cured in large increments can contribute to
hypersensitivity? - ANSWERS-True
The primer is applied following the bonding resin? - ANSWERS-False,
it happens before
The smear layer is composed of cut tooth debris, bacterial plaque, and
bodily which interferes with the formation of bond to the pulp? -
ANSWERS-False
What is the name of the acid commonly used to etch tooth structure? -
ANSWERS-phosphoric acid
How is bonding to enamel achieved? - ANSWERS-requires only a low
viscosity liquid resin monomer that will penetrate into the spaces on and
between enamel rods created by acid etching
What causes dentin sensitivity? - ANSWERS-over etched dentin
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