Research Article

Intratubular Antibacterial Effect of Polyethyleneimine Nanoparticles: An Ex Vivo Study in Human Teeth

Figure 2

The average bacterial number (percentage) of live bacteria (green) and dead bacteria (red). Root canals obturated ( teeth) with the sealer incorporating QPEI nanoparticles show significantly () less live cells (green) when compared to the root canals ( teeth) obturated with the nonmodified sealer.