Price: 10.00
Dental filling composites based on dimethacrylates have been in clinical use for several decades. By
free-radical polymerisation of the matrix monomers, a three-dimensional network is formed. The
selection of the monomers strongly influences the reactivity, viscosity and polymerisation shrinkage of the composite material, as well as the mechanical properties, water uptake and 1
Photoinitiators (P1) represent the key component in such 2 By careful selection a remarkable influence on the curing performance e.g. polymerisation rate (Rn), double bond conversion
(DBG), but also final mechanical properties is possible. These Type II photoinitiators belong to
bimolecular hydrogen abstracting 5 and are therefore limited in their reactivity by diffusion
controlled processes. The most preferred P1 for dental applications is camphorquinone (GO) in
combination with amines such as ethyl 4-dimethylaminobenzoate (DMAB).
