Fig. 6:
Graphic representation of the volumetric changes (shrinkages) of the two composite when the different devices were applied at the same level of energy (16 Joule /cm2) for polymerization. Note the different behaviours of the two composites; the Tetric® Evo flow exhibited less extensive lower dimensional changes compared to the Filtek™ Supreme XT flow. The laser produced less extensive dimensional changes compared to the other two traditional devices, which indicated the lower efficiency of the laser in the polymerization process.