@article{202212.0340, doi = {10.20944/preprints202212.0340.v1}, url = {https://doi.org/10.20944/preprints202212.0340.v1}, year = 2022, month = {December}, publisher = {Preprints}, author = {Sundus Atique and Kamran Ali and Alia Ahmed}, title = {A Comparison of Effectiveness of Conventional and Rotary NiTi Instruments in the Removal of Gutta-Percha during Root Canal Retreatment: A Randomized Ex-vivo Study}, journal = {Preprints} }