Ormocer's Flashcards
what are some features of resin composites
less invasive treatments susceptible to polymerisation shrinkage allergenic facts of BISGMA and TEGDMA bisphenol A oestrogen effect BISGMA cytotoxic
what is a ormorcer
organically modified ceramic technology
monomer free matrix with 3D cross linked co polymers which inorganic slanted filler particles
what does the structure of ormocer allow
abundance of poly opportunities
no reisdual monomer
what are the 3 components of ormocer
silicones
organic poly
ceramic glasses
explain the 3 components of ormocers
silicones - elastic, surface energy, gas perm
organic polymers - tough,flex, functionalisation, process ability
ceramic glasses - hardness, them, thermal stability and transparency
how do u use a ormocer
build up inorganic network (hydrolysis and cond of Si Alkoxide)
form organic matrix (apply heat/UV initiate reaction of poly)
result inorganic- organic copolymer
how can further customisation of ormocers properties be done
addition of
partiles
fibres
weaves (varying comp)
how are ormocers cured
light cured glass polyalkenoates
what are the structure elements
functional groups
heteroatoms in inorganic structures
inorganic silica network
organic crosslink
dental composite claims to
have less shrinkage on sett
no residual monomers