| CFU | Colony Forming Units |
| CHX | Chlorhexidine |
| CLSM | Confocal Laser Scanning Microscopy |
| E. faecalis | Enterococcus faecalis |
| EDTA | Ethylene Diamine Tetra Acetic acid |
| MTAD | Mixture of Tetracycline, Acid and Detergent |
| NaOCl | Sodium Hypochlorite |
| P100 | Propolis 100 µg/mL |
| P300 | Propolis 300 µg/mL |
| PN100 | Propolis Nanoparticle 100 µg/mL |
| PN300 | Propolis Nanoparticle 300 µg/mL |
| SEM | Scanning Electron Microscope |
| w/v | weight per volume |
| TSB | Tryptic Soy Broth |
| kV | kilo Volt |
| v/v | volume per volume |