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Abstract
The term 'compomer' was crafted by the producers of the first commercial material
of this kind: a polyacid-modified composite resin, sold as a filling material for
some specific applications. This term should recall the composite resins and glass-ionomer
cements, since some features of these two generic materials are found in the compomers.
Compomers contain a bifunctional monomer, which should be able to react with the pendant
methacrylate groups of other monomers, as well as with the cations liberated by the
glass particles. Several products of this kind are now available, and the purpose
of this paper is to describe some of their specificities and to compare their influence
on the mechanical properties, water uptake and fluoride release.