- PD Edta 17% eases instrumentation and smear layer removal in chemo-mechanical root canal preparation. - It is used for root canal irrigation, removal of debris and rinsing. - Ethylenediamine tetra acetic acid (EDTA) is a chelating agent which combines with the calcium ion and inactivates it, thereby exerting its decalcifying effect on dentine. - Edta is active on the inorganic part of the smear layer and must be used alternatively with Sodium. - Hypochlorite solution to complete its dissolution. **For further product information, please contact Chat Support**