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Study of polymerisation kinetics of dental materials

The ATR-FTIR method is very useful to characterise the chemistry of dental bonding systems, as a monomeric liquid mixture but also of the separated solids, in this case, inorganic glass fillers. Continuous spectral acquisition during photopolymerisation, without any disconnect from the ATR, allows monitoring of the polymerisation reaction and assessment of the degree of conversion DC (%), with high reproducibility and without the need for normalisation.