Ormocer's Flashcards

1
Q

what are some features of resin composites

A
less invasive treatments 
susceptible to polymerisation shrinkage 
allergenic facts of BISGMA and TEGDMA
bisphenol A oestrogen effect 
BISGMA cytotoxic
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2
Q

what is a ormorcer

A

organically modified ceramic technology

monomer free matrix with 3D cross linked co polymers which inorganic slanted filler particles

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3
Q

what does the structure of ormocer allow

A

abundance of poly opportunities

no reisdual monomer

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4
Q

what are the 3 components of ormocer

A

silicones
organic poly
ceramic glasses

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5
Q

explain the 3 components of ormocers

A

silicones - elastic, surface energy, gas perm
organic polymers - tough,flex, functionalisation, process ability
ceramic glasses - hardness, them, thermal stability and transparency

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6
Q

how do u use a ormocer

A

build up inorganic network (hydrolysis and cond of Si Alkoxide)

form organic matrix (apply heat/UV initiate reaction of poly)

result inorganic- organic copolymer

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7
Q

how can further customisation of ormocers properties be done

A

addition of
partiles
fibres
weaves (varying comp)

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8
Q

how are ormocers cured

A

light cured glass polyalkenoates

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9
Q

what are the structure elements

A

functional groups
heteroatoms in inorganic structures
inorganic silica network
organic crosslink

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10
Q

dental composite claims to

A

have less shrinkage on sett

no residual monomers

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