| CNI | Conventional needle irrigation |
| EA | EndoActivator |
| UA | Ultrasonic activation |
| XPF | XP-Endo Finisher |
| SD | Standard deviation |
| CSBS | Calcium silicate–based sealers |
| WL | Working Length |
| NaOCl | Sodium hypochlorite |
| EDTA | Ethylenediaminetetraacetic acid |
| CLSM | Confocal laser scanning microscope |
| MeanD | Mean sealer penetration depth |
| PA | Sealer penetration area |
| MaxD | Maximum sealer penetration depth |
| 8p-MeanD | Eight-point-mean sealer penetration depth |
| P | Percentage of sealer penetration along the canal perimeter |
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