GIC Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

does GIC release fluoride?

A

yes

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2
Q

does GIC bond to tooth?

A

yes

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3
Q

what are the 2 components of GIC?

A

acid (liquid)

base (glass powder)

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4
Q

during GIC setting reaction, glass and acid are reacted to give what 2 substances?

A

salt and silica gel

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5
Q

name the 3 phases of GIC setting reaction?

A

dissolution
gelation
hardening

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6
Q

GIC must be protected after placement, what materials can be used as protection?

A

varnishes
resins (bonding agents)
greases/gels (vaseline)

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7
Q

describe the bonding mechanism of GIC?

A

chelation between carboxyl groups in cement and calcium on tooth surface

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8
Q

give some poor qualities of GIC?

A
poor tensile strength
lower compressive strength than composite 
poorer wear resistance than composite
lower hardness than composite
higher solubility than composite
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9
Q

list some good qualities of GIC?

A
good thermal properties
no setting contraction
less susceptible to staining than composite once set
fluoride release
lower elastic modulus
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10
Q

how does GIC release fluoride?

A

absorbs fluoride during brushing then releases fluoride once ambient conc falls

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11
Q

list some uses of GIC?

A
dressing
fissure sealant
temporary filling
luting
orthodontic cement
restorations
base/lining
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12
Q

the addition of resin to GIC improves which qualities?

A

light curing
improved physical properties
better aesthetic

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