These are based on large organic
monomers, mainly bisphenol glycidyl methacrylate
(bis-GMA) or urethane di-methacrylate, plus other
lower viscosity monomers, such as tri-ethylene glycol
di-methacrylate (TEGDMA). They are filed with inert
particulate filler of varying particle size, which are bonded
to the organic matrix by silane coupling agents. Modern
composite materials are typically single paste systems that
polymerize by photo-initiation.
The resulting material has excellent aesthetics,
but does not bond to the tooth surface. Instead, it needs
bespoke bonding agents18, the subject of which is beyond
the scope of the present article. Composite resins are
not inherently fluoride-releasing, but can be made so by
adding fluoride compounds1
These are based on large organicmonomers, mainly bisphenol glycidyl methacrylate(bis-GMA) or urethane di-methacrylate, plus otherlower viscosity monomers, such as tri-ethylene glycoldi-methacrylate (TEGDMA). They are filed with inertparticulate filler of varying particle size, which are bondedto the organic matrix by silane coupling agents. Moderncomposite materials are typically single paste systems thatpolymerize by photo-initiation.The resulting material has excellent aesthetics,but does not bond to the tooth surface. Instead, it needsbespoke bonding agents18, the subject of which is beyondthe scope of the present article. Composite resins arenot inherently fluoride-releasing, but can be made so byadding fluoride compounds1
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