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

Figure 1

Sealer incorporating QPEI nanoparticles inhibit E. faecalis growth. Representative confocal laser scanning microscopy of obturated root canal with a nonmodified sealer (a) and with a sealer incorporating QPEI nanoparticles (b). E. faecalis cells stained using BacLight LIVE/DEAD viability stain.

(a)

(b)