Bayou, S.Mouzali, M.Lecamp, L.Lebaudy, P.2020-11-052020-11-052017-05-01Articale in Journal of fundamental and Applied Sciences Vol. 09, N. 021112-9867http://dspace.univ-eloued.dz/handle/123456789/7444Articale in Journal of fundamental and Applied Sciences Vol. 09, N. 02The photoinitiated polymerization of a dental formulation is composed of Mixture of monomers 75%Bis-GMA/25%TEGDMA and CQ/DMAEMA as radical photoinitiator was studied by using isothermal photocalorimetry. The effect of temperature, light intensity and photoinitiating system concentration on reaction was investigated. A maximum conversion was obtained for a photoinitiator system concentration of 1% (w/w) and for the highest light intensity studied. It should be noted that a correlation between the glass transition temperature of the final polymer and the conversion has been studied.endental composite; photopolymerization; dimethacrylate resin; photoinitiator system.Article