%0 Journal Article %T Evaluation of Manual and Two-Rotary Niti Retreatment Systems in Removing Gutta-Percha Obturated with Two Root Canal Sealers %A Athikesavan Jayasenthil %A Emmanuel Solomon Sathish %A Prashanth Prakash %J ISRN Dentistry %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/208241 %U http://dx.doi.org/10.5402/2012/208241