Abstract
The use of photosensitive initiators of the polymerization of composite materials used in restorative dentistry has become widespread. Experimental and theoretical studies of hardening mechanisms as a function of chemical reactions leading to polymerization and of the light dispersion due to mineral filler have been performed. Experimental profiles derived from our study deviate significantly from the classical Beer-Lambert absorption law. They demonstrated the difficulty of obtaining an homogeneous hardness of this material in the cured tooth cavity.
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