TY - JOUR T1 - Vertical fracture resistance of roots retreated using different instrumentation techniques AU - Helvacıoğlu-yiğit, Dilek AU - Yılmaz, Ayça AU - Sarıdağ, Serkan AU - Avcu, Egemen AU - Yıldıran, Yasemin Y1 - 2016 PY - 2016 DA - 2016 N1 - doi: 10.14744/TEJ.2016.54264 DO - 10.14744/TEJ.2016.54264 T2 - Turkish Endodontic Journal (TEJ) JF - Turkish Endodontic Journal (TEJ) JO - Turk Endod J SP - 1 EP - 6 VL - 1 IS - 1 SN - M3 - doi: 10.14744/TEJ.2016.54264 UR - https://dx.doi.org/10.14744/TEJ.2016.54264 Y2 - 2016 ER -