Revue des Sciences Fondamentales Appliquées
Volume 9, Numéro 2, Pages 685-695
2017-05-01

Photoinitiated Polymerization Of A Dental Formulation: 1. Influence Of Photoinitiating System, Temperature And Luminous Intensity



Authors : Bayou S. . Mouzali M. . Lecamp L. . Lebaudy P. .

Abstract

The 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.

Keywords

dental composite; photopolymerization; dimethacrylate resin; photoinitiator system.

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